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[Daqq ta mużika]

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ROGER ZURAWICKI: Hi, tiegħi
isem huwa Roger Zurawicki,

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u jien se tkun tkopri
is-seminar CS50 Meteor.

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Meteor huwa qafas ġdid
ddedikati għall-tip ġdid ta 'web,

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mhux l-PHP jsiru talbiet
quddiem u lura tip

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ta 'web rajna fis-sett PHPP,
iżda l-JavaScript aktar dinamika

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partijiet tal-web.

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Things Meteor tista 'tagħmel
jinkludi Live Aġġornament

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u immedjatament komunikazzjoni
bejn l-utenti ta 'l-istess websajt.

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>> Għal dan is-seminar, aħna għandna
kodiċi ospitat fuq GitHub tiegħi.

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Inti tista 'tmur għal dan il-URL u niżżlu.

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Jekk inti taf kif tuża Git,
inti tista 'klonu-repożitorju.

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Jekk inti ma taf kif tuża
Git jew ma jkunux użati GitHub,

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li kompletament multa.

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I ser nuruk verament malajr
kif nistgħu mur GitHub,

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u hemm għażla li
tniżżel zip hemm dritt.

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Ladarba inti tniżżel dan id-direttorju, inti
tista 'tibda playing mal-kodiċi tagħna.

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>> Aktar informazzjoni dwar Meteor
tista 'tinstab fuq meteor.com.

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Fil-folder Seminar, I attwalment
ikollhom xi proġetti Meteor nistgħu nużaw.

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Wieħed mill-folders għandna fil tagħna
proġett seminar huwa l-app todos.

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Mela jekk jien tmur fis dan I,
jkollhom Meteor installat.

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Allura biex run, I biss bżonn li tip
Meteor, u Meteor ser tinstalla.

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Kif tistgħu taraw, aħna għandna biex
niżguraw installat Meteor.

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Allura jien biss ser
run wieħed aktar ħin

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biex tiżgura li Meteor
huwa installat sew.

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>> Filwaqt I jkollhom Meteor
installazzjoni, I jistgħu nuruk

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xi demos ħajjin ta 'siti Meteor
jmorru jgħixu dritt issa fuq l-internet.

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I jkollhom demo ta app tagħna.

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Inti tista 'aċċess fil-URL li ġej.

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Dan huwa l-app biex tagħmel li aħna
jkollhom fl-direttorju seminar tagħna.

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Il URL għal dan hija
rozu-rabbit.meteor.com.

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Int ser ikollok tara li Meteor se attwalment
jospita proġetti Meteor tiegħek mingħajr ħlas.

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U fl-aħħar tas-seminar,
inti ser tkun tista 'tagħmel dan ukoll.

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>> Din hija li tagħmel lista app.

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U inti tista 'tiffirma, joħolqu
kontijiet, u żid kompiti.

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Tista 'toħloq kont bħal tant.

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U issa, ladarba inti għandek
kont, inti tista 'żżid il-kompiti.

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Per eżempju, wieħed mill-kompiti I
jista 'jkollok bżonn biex tmur pick up londri tiegħi.

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U jekk int fuq dan
sit online, inti ser

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attwalment tara dan il-kompitu fuq
kompjuter tiegħek fil-ħin reali.

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>> I inti tista 'turi demo malajr
ta 'dan billi jiftaħ ROZU-fenek

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fi tab ieħor bl-istess URL.

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U naraw li l-istess data taqa up.

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Nistgħu wkoll run fil
browser differenti.

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Say I run fis Safari.

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B'dak il-mod aħna mhux qed illoggjat.

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Allura aħna għandna l-istess Meteor
app, u ladarba tagħbijiet,

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Ser naraw l-istess data
għamilna fl-ewwel waħda.

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Kif tistgħu taraw, jien ma illoggjat hawn.

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U meta d-data kontrolli udjenza,
dan aġġornamenti fuq l-browsers

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simultanjament.

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Din hija waħda mill-verament
karatteristiċi jibred dwar Meteor.

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Bi kważi ebda xogħol, int
jkollhom app aġġornament live

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li tibdil fuq kollha ta '
mezzi tiegħek f'daqqa.

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>> Jekk I jivverifika l-kaxxa kontroll hawnhekk
fil tiegħi li tagħmel lista, se jkollna,

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fi tiegħi browser oħra Chrome,
l-oġġett ċċekkjati off.

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U dan jiġri b'mod istantanju.

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Kull dritt.

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Allura jidher qisu Meteor
installazzjoni hija lesta issa.

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Allura issa ejja jmorru lura għall-
app todos u run dan lokalment.

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>> Jekk ikollok xi proġett Meteor, inti tista
biss run ma 'l-Meteor kmand.

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Ladarba inti tagħmel dan, Meteor
se tagħmel xi preparazzjoni

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biex tiżgura kollha tal
kodiċi tiegħek huwa fil-verifika.

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U allura dan ser jgħidlek li l-
proġett huwa lest biex jiġi servut.

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Jista 'jkollok bżonn biex jippermettu tiegħek
firewall, jekk il-kompjuter tiegħek blokki inti.

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>> Allura dak Meteor qed javżak me
dritt issa huwa li fuq il-website

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lokali għall-kompjuter tiegħi, I jista 'jara
dak li dan il-proġett Meteor hu.

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Innota li d-dritt issa, app tiegħi huwa
mhux aċċessibbli għall-internet.

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Aħna ser ikopru kif iġġib Meteor tiegħek
app għal sit ħajjin daqsxejn aktar tard.

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Allura jien biss ser Kopja ta 'din
URL issa u jmorru fil-Google Chrome.

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>> U dan huwa l-li tagħmel
lista mill-eżempju.

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Tista 'tara dawn implimentati
ftit karatteristiċi aktar hawn.

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Għandna tabs differenti, aħna
għandhom l-istess karatteristiċi kont,

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u nistgħu żid listi ġodda.

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Issa, wieħed mill-verament
Karatteristika jibred dwar Meteor

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huwa li mhux biss tista 'din
taħdem fuq web browser tiegħek,

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imma int tista 'wkoll toħloq
nattiva iPhone u Android

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apps permezz ta 'għodda msejħa PhoneGap.

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>> Allura xi proġetti se jidħlu
pre-konfigurati għal tmexxija

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fuq IOS, bħal dan app todos.

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Allura kollha I bżonn tagħmel biex imexxu dan fil IOS
huwa tat-tip Meteor, run, u mbagħad IOS.

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U meta I tagħmel dan, Meteor
se tipprepara l-pakkett mill-ġdid.

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U mbagħad, ladarba huwa lest, inneħħu
tagħbija l-simulatur IOS fuq kmand tiegħi.

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Nota inti tista 'biss taħdem IOS apps
jekk ikollok kompjuter Mac.

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Inti tista 'taħdem apps tiegħek fuq
Android fuq pjattaformi kollha.

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>> Allura issa inti tista 'tara li iPhone tiegħi
simulatur ħarāu fuq l-iskrin tiegħi.

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U fi ftit mument,
dan ser tagħbija bl-app.

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Jekk nagħmlu dan biss daqsxejn
iżgħar li jitwaħħal fuq l-iskrin,

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naraw li għandna app iPhone tagħna.

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U biss hekk aħna ma
nikseb konfuż, ejja jagħmlu

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żgur ninsabu fuq l-istess
website, l-ospitanti lokali 3000.

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>> Allura dritt hawnhekk hija eżempju
ta 'l-app Meteor għandi,

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l-app todos, running kemm fuq
telefon u fuq web browser.

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U meta nibdel Jittieħed
fil-web browser,

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immedjatament tmur għall-telefon.

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U nista 'tħassar xi ħaġa fuq it-telefon,
u tbiddel fil-web browser.

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>> Issa, normalment biex joħolqu nattiva
app telefon għall IOS jew Android,

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għandek bżonn tkun taf kemm Java jew
Objettiv C. użi Meteor Il teknoloġija

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biex jippermettu JavaScript jiddekorri bħala
app tiegħek huwa msejjaħ PhoneGap.

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What app tiegħek essenzjalment
huwa huwa web browser.

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U Meteor mankijiet kollha
l-partijiet delikata involuti

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għall-ftuħ li web browser biex
iPhone tiegħek jew apparat Android tiegħek.

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Tista 'tara li l-
user interface huwa lixx,

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u huwa jistenna u jħoss ħafna
ħafna bħal app indiġeni.

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Avviż li jekk mmur id-dar
screen issa, I wkoll tikseb ikona.

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Din mhix websajt bħal
youd ssib fil Safari.

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Dan huwa app tagħha stess.

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Inti tista 'tinstalla u
iħassarha jekk inti tixtieq.

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>> Nistgħu nuru qosor dak li l-kodiċi
għal dan it-tip ta 'todos app Dehra.

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Jekk inti tfittex fil-folder todos,
se tara hemm ħafna folders.

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Iżda matul il-kors
tas-seminar, aħna ser

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jifhmu dak li kull folder huwa użat għall.

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Ejja jmorru fil-terminal hekk aħna
tista 'tara l-fajls daqsxejn aħjar.

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>> Jien ser tagħfas Control
C biex iwaqqaf il-server,

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u issa jien lura fil-app todos.

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Għandi folders differenti hawn, bħal
l-folder klijent, il-folder server.

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U dawn folders sempliċement ifissru li
kollox fil-folder klijent

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gets esegwiti fuq web browser tiegħek.

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Kollox fil-folder server
gets esegwiti fuq server.

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>> Dak li nixtieq punt
out hija li dak li kellna

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meta kellna telefon running tagħna u
web browser tagħna, dawn kienu klijenti.

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Imma x'hemm għaddej fi
terminal, dak l-server.

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Għandna folders oħra, bħall-
LIB, li huwa kodiċi librerija,

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bħall-helper tiegħek
funzjonijiet, li inti tista '

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jużaw kemm fuq il-klijent u s-server.

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U allura inti għandek pubbliku
folder u r-riżorsi

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folder meħtieġ għall jkollna
tiegħek immaġini u CSS oħra mgħobbija.

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>> Jekk għandek Meteor installat, aħna se
tkompli bl-tutorja għall Meteor.

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Inti tista 'tmur għal dan il-URL,
meteor.com/install,

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biex jiksbu l-linja tal-kmand li I
wera lilek li jinstalla Meteor.

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Aħna se jgħaddu mill-ewwel
ftit passi biex tikseb aħjar

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jħossu dwar kif jinstallaw Meteor.

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>> Iżda l-ewwel, naħseb huwa importanti li
aħna tirrevedi xi ftit ta 'JavaScript.

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Biex nuruk xi eżempji ta 'kif
għarfien tagħna C jista 'jiġi tradott

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biex JavaScript, stajt
ħolqot ftit eżempji.

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Dawn huma fid-direttorju JS.

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Mela jekk fis-seminars folder inti
ħarsa, hemm folder imsejjaħ JS.

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U fil hawn, aħna għandna ftit eżempji.

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>> Ejja jiftħu l-ewwel
Eżempju u ara malajr ħafna.

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Dak li naraw huwa standard tiegħek
bonjour kmand dinja.

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You avviż fil C li inti
għandhom pjuttost ftit linji.

155
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U bħala studenti CS50 taf,
għandna bżonn funzjoni ewlenija,

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u għandna biex jinkludi l-istandard
I / O librerija sabiex jistieden printf.

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00:09:05,730 --> 00:09:09,320
>> Ejja nħarsu lejn kif JavaScript jikkompara.

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Jien ser tiftaħ ex1.js.

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Ikkummenta out huwa dak l-
C kodiċi look like,

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u l-linja ta 'hawn taħt hija kollha
għandek bżonn biex imexxu fil Node.

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Inti ma għandekx bżonn funzjoni ewlenija, inti
m'għandhomx bżonn li jinkludi xi fajls,

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u inti ma għandekx bżonn li jirritornaw.

163
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Inti biss sejħa console.log.

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Dan huwa l-ekwivalenti ta 'printf tiegħek.

165
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>> U li tieħu l-istess
argumenti printf kieku.

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U sabiex run,
minflok running jagħmlu Eñ1,

167
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inti biss sejħa ex1.js. Node

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Inti tikteb Node u mbagħad
il-fajl, u jiġrilha run.

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Hija ma jiksbu ikkompilati.

170
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JavaScript huwa lingwa interpretat.

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Għalhekk ma jkunx jeħtieġ li jiġu
kkompilata qabel ma jkun run.

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Jekk jien ridt jiddekorri ex1.c,
Għandi li jagħmilha l-ewwel,

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u mbagħad I tista 'taħdem il-eżekutibbli
biex tikseb l-istess output.

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>> Ejja malajr ikopru wħud
kunċetti JavaScript oħra.

175
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Ejja nħarsu lejn eżempju tnejn.

176
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Fil ex2.js, fil ex2.c, nistgħu
tara li aħna għandna xi kodiċi.

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Let me jmorru malajr lil
editur test aħjar

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00:10:16,550 --> 00:10:18,400
li se juri dawn
linji ġodda daqsxejn aħjar.

179
00:10:18,400 --> 00:10:21,760

180
00:10:21,760 --> 00:10:22,380
Kull dritt.

181
00:10:22,380 --> 00:10:24,190
Hawnhekk għandna eżempju 2.c.

182
00:10:24,190 --> 00:10:27,360
Hawnhekk għandna tipi differenti
li aħna qed istampar out.

183
00:10:27,360 --> 00:10:30,880
U kif nafu, printf jieħu
argumenti differenti fil-mija

184
00:10:30,880 --> 00:10:34,050
aċċess biċċiet differenti ta 'data.

185
00:10:34,050 --> 00:10:36,840
Jekk irridu li jistampaw
string, nagħmlu sejħa% s.

186
00:10:36,840 --> 00:10:40,390
Jekk irridu li jsejjaħ floating
punt numru, we called% f.

187
00:10:40,390 --> 00:10:45,810
U hemm ebda mod faċli biex sejħa
Boolean mill-valur veru jew falza tagħha.

188
00:10:45,810 --> 00:10:50,760
Imma jekk inti tuża% d, inti tista 'tikseb
'0 jew 1 għat falza u vera.

189
00:10:50,760 --> 00:10:53,270
>> JavaScript huwa daqsxejn nicer għalina.

190
00:10:53,270 --> 00:10:57,740
Fil JavaScript, ejja nħarsu lejn il-ftit
differenzi għandna f'dan il-fajl.

191
00:10:57,740 --> 00:11:05,790
L-ewwel, inti tinnota li fis-C għandna biex
initialize kull varjabbli ma 'tip.

192
00:11:05,790 --> 00:11:06,940
S hija stilla char.

193
00:11:06,940 --> 00:11:08,930
Huwa string, u
ma tistax tkun kwalunkwe tip ieħor.

194
00:11:08,930 --> 00:11:10,450
N huwa float.

195
00:11:10,450 --> 00:11:11,780
B hija BOOL.

196
00:11:11,780 --> 00:11:14,220
>> Iżda fl JavaScript,
hemm tipi dinamiċi.

197
00:11:14,220 --> 00:11:16,400
Dan ifisser li inti ma
trid tghid JavaScript

198
00:11:16,400 --> 00:11:17,860
liema tipi varjabbli tiegħek se jkun.

199
00:11:17,860 --> 00:11:22,730
Inti biss jgħidu var għall varjabbli, l-isem
tal-varjabbli, u mbagħad l-valur tagħha.

200
00:11:22,730 --> 00:11:24,690
Allura var jistgħu jiġu xejn verament.

201
00:11:24,690 --> 00:11:25,640
Hija tista 'tkun string.

202
00:11:25,640 --> 00:11:27,300
Hija tista 'tkun numru b'punt li jvarja.

203
00:11:27,300 --> 00:11:28,560
Hija tista 'tkun karattru.

204
00:11:28,560 --> 00:11:31,250
Hija tista 'tkun Boolean.

205
00:11:31,250 --> 00:11:34,380
U console log jaħdem daqsxejn differenti.

206
00:11:34,380 --> 00:11:37,340
Jekk inti tixtieq li jistampaw
numru, inti sejħa% d.

207
00:11:37,340 --> 00:11:41,740
Iżda ħafna valuri jistgħu jkunu
stampati kif kordi biss multa.

208
00:11:41,740 --> 00:11:46,220
>> Ejja run dan Node
biex tara x'jista 'jiġri.

209
00:11:46,220 --> 00:11:51,880
I tista 'sejħa ex2.js node,
u nikbru printf

210
00:11:51,880 --> 00:11:56,870
mal-CS50 valuri, N kif
in-numru f'wiċċ l-ilma punt,

211
00:11:56,870 --> 00:12:00,620
u mbagħad B bħala l-Boolean
konvertiti għal string veru.

212
00:12:00,620 --> 00:12:03,830
What about jekk għamilna eżempju 2.c?

213
00:12:03,830 --> 00:12:09,630
Well, aħna xorta jkollhom xi
aktar annoyances bi printf.

214
00:12:09,630 --> 00:12:13,110
Avviż li l-punt floating
Numru irid tiġi formatted korrett,

215
00:12:13,110 --> 00:12:18,120
u li l-Boolean ma tistax sempliċement
jintwerew bħala vera jew falza.

216
00:12:18,120 --> 00:12:18,620
Kull dritt.

217
00:12:18,620 --> 00:12:22,680
Issa ejja nħarsu lejn eżempju tlieta.

218
00:12:22,680 --> 00:12:26,470
Fl-eżempju tlieta, aħna qed juru
kif inti tuża għal loop.

219
00:12:26,470 --> 00:12:27,630
Fil-fatt, huwa sempliċi ħafna.

220
00:12:27,630 --> 00:12:31,430
Waħda mill-affarijiet sbieħ dwar
JavaScript huwa li hija bbażata C.

221
00:12:31,430 --> 00:12:33,920
Dan ifisser li ħafna tiegħek
kodiċi se tħares simili ħafna

222
00:12:33,920 --> 00:12:36,490
u jħossu ħafna l-istess.

223
00:12:36,490 --> 00:12:39,220
Fi għall loop, l-unika ħaġa
li tkun verament biddlet hawn

224
00:12:39,220 --> 00:12:41,840
huwa minflok i int, aħna għandna var i.

225
00:12:41,840 --> 00:12:45,470
Aħna xorta tista 'tassenja dan għall-valur
żero, iċċekkja li huwa inqas minn ħamsa,

226
00:12:45,470 --> 00:12:49,390
u inkrement minn waħda
mal-operatur ++.

227
00:12:49,390 --> 00:12:56,286
Aħna nsejħu console.log fuq i, u li
se print us numru ma 'kull linja.

228
00:12:56,286 --> 00:12:58,410
Ejja run verament malajr
biex tara dak li outputs.

229
00:12:58,410 --> 00:13:02,320

230
00:13:02,320 --> 00:13:03,880
Nikbru numru ġdid f'kull linja.

231
00:13:03,880 --> 00:13:06,920
Ħaġa oħra I jixtiequ inti
li l-avviż bil console.log

232
00:13:06,920 --> 00:13:09,960
huwa inti ma għandekx jiktbu
backslash n għal-linja ġdida.

233
00:13:09,960 --> 00:13:12,480
Console.log se print
kollox fuq il-linja tagħha stess.

234
00:13:12,480 --> 00:13:14,585
C'est karatteristika sbieħ
li JavaScript jagħtina.

235
00:13:14,585 --> 00:13:18,440

236
00:13:18,440 --> 00:13:22,600
>> Issa ejja jiftħu eżempju erbgħa.

237
00:13:22,600 --> 00:13:28,710
Fl-eżempju erba ', l-ewwel fil-C,
aħna qed jitolbu ftit funzjonijiet.

238
00:13:28,710 --> 00:13:33,290
Avviż li għandna biex jiddikjaraw l-
funzjonijiet qabel we jużawhom fil prinċipali.

239
00:13:33,290 --> 00:13:37,250
Jekk kellna prinċipali l-ewwel u
imbagħad żid u mbagħad għolja, jagħmlu,

240
00:13:37,250 --> 00:13:39,540
clang, jew GCC ikun
agħtina żball qal

241
00:13:39,540 --> 00:13:41,060
li hija ma kinitx taf liema għolja huwa.

242
00:13:41,060 --> 00:13:42,780
Hija ma tkunx taf liema add hu.

243
00:13:42,780 --> 00:13:46,480
Allura fil-C, inti għandek tkun picky dwar il-
ordni li fiha inti sejħa funzjonijiet tiegħek.

244
00:13:46,480 --> 00:13:49,220

245
00:13:49,220 --> 00:13:51,310
>> Ejja nħarsu lejn kif inti tista
tagħmel dan fil JavaScript.

246
00:13:51,310 --> 00:13:56,060
Għandna fajls differenti għaliex hemm
huma modi differenti ftit biex tagħmel dan.

247
00:13:56,060 --> 00:13:58,950
Mod wieħed huwa pretty ħafna
traduzzjoni diretta.

248
00:13:58,950 --> 00:14:02,180
Minħabba funzjonijiet C
tipi ritorn, u JavaScript

249
00:14:02,180 --> 00:14:05,210
ma verament jafu jew kura
dwar liema tip inti tirritorna,

250
00:14:05,210 --> 00:14:06,300
inti ma jiktbu tip.

251
00:14:06,300 --> 00:14:08,100
Minflok, inti biss bżonn
jiktbu funzjoni,

252
00:14:08,100 --> 00:14:11,180
u kollox huwa pretty
ħafna l-istess bħal qabel.

253
00:14:11,180 --> 00:14:14,630
>> Meta għandek varjabbli, bħal fil
żid, aħna biss bżonn jiktbu xuy.

254
00:14:14,630 --> 00:14:16,060
Aħna ma bżonn li wieħed jgħid x huwa int.

255
00:14:16,060 --> 00:14:18,940
Aħna ma bżonn li wieħed jgħid y huwa int.

256
00:14:18,940 --> 00:14:21,030
Aħna ritorn bl-istess sintassi.

257
00:14:21,030 --> 00:14:24,230
Għal għolja, aħna niddikjaraw ma
jiffunzjonaw minflok nulli.

258
00:14:24,230 --> 00:14:26,110
Avviż li jekk
huwa vojt jew mhux nulla,

259
00:14:26,110 --> 00:14:28,380
huwa għadu l-istess funzjoni.

260
00:14:28,380 --> 00:14:32,440
U aħna sempliċiment ma tpoġġi
xejn fil-parentesi,

261
00:14:32,440 --> 00:14:34,690
u jidher simili ħafna għall-kodiċi C.

262
00:14:34,690 --> 00:14:37,460
U hawn taħt, nistgħu sejħa hija ta 'hawn taħt.

263
00:14:37,460 --> 00:14:42,730
>> Jekk inħarsu lejn eżempju 4b, aħna Avviż
li stajt inbidlet ftit affarijiet.

264
00:14:42,730 --> 00:14:45,340
L-unika ħaġa li stajt inbidlet
verament għalkemm hija l-ordni.

265
00:14:45,340 --> 00:14:47,340
Għandna l-istess
funzjonijiet, iżda issa dawn qed

266
00:14:47,340 --> 00:14:52,200
iddikjarata wara dawn qed użati fid
console.log u għolja fuq il-linji 18, 19.

267
00:14:52,200 --> 00:14:54,740
Jekk inti għamilt dan fil C,
jagħmlu tarmi żball.

268
00:14:54,740 --> 00:14:56,070
Hawnhekk, dan xogħlijiet biss multa.

269
00:14:56,070 --> 00:15:01,935
U nista 'turi dan lilek billi
ssejjaħ Node fuq eżempju 4b.

270
00:15:01,935 --> 00:15:05,350

271
00:15:05,350 --> 00:15:10,130
>> Mod ieħor nistgħu sejħa funzjonijiet
huwa mill-iffrankar funzjonijiet bħala varjabbli.

272
00:15:10,130 --> 00:15:13,790
Like I said, varjabbli
jista 'jkollhom kwalunkwe tip.

273
00:15:13,790 --> 00:15:16,720
Wieħed mit-tipi ta 'varjabbli
jista 'jkollhom hija funzjoni.

274
00:15:16,720 --> 00:15:19,800
Mela jekk inti tħares lejn eżempju
4c, dak li stajt inbidlet

275
00:15:19,800 --> 00:15:24,320
hawnhekk huwa var żid minflok żid funzjoni.

276
00:15:24,320 --> 00:15:26,807
U issa żid ugwali funzjoni.

277
00:15:26,807 --> 00:15:28,140
Din il-funzjoni hawnhekk huwa anonimu.

278
00:15:28,140 --> 00:15:33,346
Hija għandha l-ebda isem, dan huwa biss
funzjoni u allura l-parentesi.

279
00:15:33,346 --> 00:15:35,220
Is-sintassi wara li
ma jbiddilx, imma int

280
00:15:35,220 --> 00:15:38,300
do għandek li wieħed iżomm f'moħħu li
għandek varjabbli li int

281
00:15:38,300 --> 00:15:42,940
ħażna tal-funzjoni fis żid, u
varjabbli li int jaħżnu fis għolja.

282
00:15:42,940 --> 00:15:47,620
>> Minħabba żid għoli u issa huma varjabbli
u mhux il-funzjonijiet, xi ħaġa bidliet.

283
00:15:47,620 --> 00:15:50,190
Din hija bug komuni nara fil
lott ta 'JavaScripts tan-nies,

284
00:15:50,190 --> 00:15:52,410
u xi ħaġa li wieħed iżomm f'moħħu.

285
00:15:52,410 --> 00:15:54,365
Meta I run dan, ejja ara dak li jiġri.

286
00:15:54,365 --> 00:15:57,410

287
00:15:57,410 --> 00:15:58,230
I nikseb żball.

288
00:15:58,230 --> 00:16:01,000
Huwa qal undefined f'dan il-punt.

289
00:16:01,000 --> 00:16:03,520
Allura huwa qal li
ma tkunx taf liema żid hu.

290
00:16:03,520 --> 00:16:06,010
>> Minħabba li issa żid mhix
funzjoni, żid hija varjabbli.

291
00:16:06,010 --> 00:16:10,100
U int ma attwalment mogħtija
żid il-valur għadhom meta inti użati.

292
00:16:10,100 --> 00:16:14,460
Din twassalna għad eżempju 4d, fejn jekk
inti tixtieq li tuża fatturi varjabbli kif il-funzjonijiet,

293
00:16:14,460 --> 00:16:17,210
inti biss bżonn tagħmel ċert li huma
jiksbu l-valur qabel ma jkunu qed jintużaw.

294
00:16:17,210 --> 00:16:20,200

295
00:16:20,200 --> 00:16:23,420
>> Ejja jimxu fuq eżempju ħamsa imbagħad.

296
00:16:23,420 --> 00:16:27,390
Hawnhekk, nitkellmu dwar
structs fil C. Fil C, structs

297
00:16:27,390 --> 00:16:30,320
jkollhom din l-istruttura fissa lilhom
peress li inti għandek tiddikjara magħhom

298
00:16:30,320 --> 00:16:33,050
qabel ma tużah, u
inti tgħidli I jkollhom student,

299
00:16:33,050 --> 00:16:36,645
u kull student ikollu eżattament
isem wieħed, sena, sess wieħed.

300
00:16:36,645 --> 00:16:37,770
Dan irid ikollha kull wieħed minnhom.

301
00:16:37,770 --> 00:16:42,280
Hija ma tistax jkollhom xi valuri oħra,
u dawn għandhom ikunu tipi speċifiċi.

302
00:16:42,280 --> 00:16:47,540
>> Imbagħad nistgħu initialize l
Struct f'dan sintassi sbieħ

303
00:16:47,540 --> 00:16:49,470
għaliex taf l-ordni.

304
00:16:49,470 --> 00:16:51,460
Għalhekk jaf li Roger huwa isem.

305
00:16:51,460 --> 00:16:54,060
Hija jaf li 2016 hija
sena u M hija sessi

306
00:16:54,060 --> 00:16:58,200
għaliex aħna told dan
lista huwa student Struct.

307
00:16:58,200 --> 00:17:01,607
U allura inti tista 'jistampaw
dan, aċċess s.name.

308
00:17:01,607 --> 00:17:03,690
Ejja naraw kif nistgħu kieku
jikkonvertu dak li JavaScript.

309
00:17:03,690 --> 00:17:06,400

310
00:17:06,400 --> 00:17:09,790
Avviż li s issa huwa
varjabbli, u hemm ebda tip.

311
00:17:09,790 --> 00:17:10,920
Huwa biss var darb'oħra.

312
00:17:10,920 --> 00:17:14,480
Minħabba li ma jimpurtax jekk il-
tip ta 'dan il-varjabbli huwa pointer,

313
00:17:14,480 --> 00:17:17,440
huwa Struct, jew xi ħaġa oħra.

314
00:17:17,440 --> 00:17:19,650
Għandna sintassi kemmxejn differenti.

315
00:17:19,650 --> 00:17:21,890
Dan sintassi hija l-sintassi oġġett.

316
00:17:21,890 --> 00:17:24,400
>> Inti tista raw dan fil JSON.

317
00:17:24,400 --> 00:17:27,780
JSON attwalment stands għall-
JavaScript Notazzjoni Għan.

318
00:17:27,780 --> 00:17:31,240
Din hija kif inti tiddefinixxi
oġġetti fl JavaScript.

319
00:17:31,240 --> 00:17:34,500
Għandna ewlieni, li hija
il-valur, bħall-isem.

320
00:17:34,500 --> 00:17:37,680
U aħna tagħtiha valuri fuq
naħa l-oħra tal-kolon.

321
00:17:37,680 --> 00:17:41,850
U ħaġa waħda li wieħed iżomm f'moħħu huwa li inti
m'għandekx bżonn li jkollu isem u sena

322
00:17:41,850 --> 00:17:42,980
u sess għal oġġett.

323
00:17:42,980 --> 00:17:44,570
Oġġett jista 'jkollhom l-ebda valuri.

324
00:17:44,570 --> 00:17:46,920
Huwa jista 'jkollhom bħala ħafna kif inti tixtieq.

325
00:17:46,920 --> 00:17:50,375
>> Nistgħu jużaw dawn l-oġġetti fil biss l-
istess mod aħna se tuża Struct, s.name.

326
00:17:50,375 --> 00:17:53,810

327
00:17:53,810 --> 00:17:57,080
Nistgħu run verament malajr
billi tagħmel node eżempju 5.c.

328
00:17:57,080 --> 00:18:00,320

329
00:18:00,320 --> 00:18:02,520
Aħna ma tistax tmexxi effettivament fajl C fil Node.

330
00:18:02,520 --> 00:18:03,654
Hija ma tkunx taf liema C hu.

331
00:18:03,654 --> 00:18:04,695
Hija biss jaf JavaScript.

332
00:18:04,695 --> 00:18:09,865
Meta aħna run l ex5.js, irridu jiksbu
il-valur, li aħna mistennija.

333
00:18:09,865 --> 00:18:13,490

334
00:18:13,490 --> 00:18:15,980
>> Ejja jimxu fuq eżempju sitta.

335
00:18:15,980 --> 00:18:18,930
Hawnhekk I biss trid titkellem ftit
daqsxejn aktar dwar arrays JavaScript

336
00:18:18,930 --> 00:18:20,930
għaliex qed daqsxejn
differenti minn dak li int

337
00:18:20,930 --> 00:18:26,940
użati fil C. Arrays huma notated,
mhux mal-parentesi simili fis-C,

338
00:18:26,940 --> 00:18:28,640
mal-braces kaboċċi, iżda parentesi.

339
00:18:28,640 --> 00:18:32,150
Inti jista 'jkollhom firxa vojta,
bħal arr fil-linja erbgħa.

340
00:18:32,150 --> 00:18:34,680
Inti jista 'jkollhom arrays
mal-valuri multipli.

341
00:18:34,680 --> 00:18:39,790
U inti jkollhom aċċess għalihom
biss l-istess mod C.

342
00:18:39,790 --> 00:18:42,990
>> Sa linja seba, kollox
jidher pjuttost sempliċi.

343
00:18:42,990 --> 00:18:45,390
Differenza żgħira Wieħed huwa hawnhekk fil-linja 10.

344
00:18:45,390 --> 00:18:48,620
Il-mod ikollok it-tul ta '
firxa hija biss billi ċċempel .length.

345
00:18:48,620 --> 00:18:50,620
Firxa jista 'attwalment jiġi
trattat bħal oġġett,

346
00:18:50,620 --> 00:18:54,960
u dan l-oġġett għandu propjetà tul
li inti sejħa biex tikseb it-tul ta 'dan.

347
00:18:54,960 --> 00:18:57,350
Avviż li dan huwa differenti
fis-C għaliex C inti

348
00:18:57,350 --> 00:19:01,600
għandek tkun taf it-tul ta '
oġġett tiegħek qabel iż-żmien.

349
00:19:01,600 --> 00:19:04,700
>> Allura ħaġa oħra sbieħ dwar arrays
hija li inti jista 'jkollhom tipi differenti.

350
00:19:04,700 --> 00:19:07,470
Jekk għandek firxa fis-C, hemm
huma arrays ta 'valur speċifiku,

351
00:19:07,470 --> 00:19:11,900
jew pointer Struct
jew sufruni jew [inaudible].

352
00:19:11,900 --> 00:19:13,700
Hawnhekk, inti jista 'jkollhom valuri differenti.

353
00:19:13,700 --> 00:19:17,560
I l-ewwel kellu numru b'punt li jvarja,
imbagħad Boolean, imbagħad numru sħiħ ieħor.

354
00:19:17,560 --> 00:19:19,670
U fil-fatt, li jistgħu jaqilbu tipi wisq.

355
00:19:19,670 --> 00:19:21,220
Ħares lejn linja 16.

356
00:19:21,220 --> 00:19:26,760
Array tnejn qed tinbidel milli jkunu
numru, integer, għal string.

357
00:19:26,760 --> 00:19:30,920
>> Ħaġa oħra sbieħ dwar arrays huwa hawnhekk
fil-linja 19, huma għandhom id-daqs infinita.

358
00:19:30,920 --> 00:19:35,900
Inti tista 'biss jgħidu Irrid li l-mija
element li jkun il-string leġittimu.

359
00:19:35,900 --> 00:19:38,510
U dan ma jidhirx li jagħmlu
sens għaliex l-array unika

360
00:19:38,510 --> 00:19:41,080
għandha spazju għal tliet elementi,
hekk it-tmiem għandu jkun tnejn.

361
00:19:41,080 --> 00:19:44,800
Imma meta inti tagħmel dan, ejja
ara dak array tlieta isir.

362
00:19:44,800 --> 00:19:47,460
We imur dan malajr
bl eżempju node six.js.

363
00:19:47,460 --> 00:19:49,990

364
00:19:49,990 --> 00:19:52,180
Nikbru dan verament twila
firxa, u x'jiġri

365
00:19:52,180 --> 00:19:55,100
huwa aħna għandna l-ewwel ftit elementi
u mbagħad mazz ta 'matriċi

366
00:19:55,100 --> 00:19:56,580
sakemm aħna nikseb string tagħna.

367
00:19:56,580 --> 00:19:58,580
JavaScript timla l-
firxa kif huwa meħtieġ.

368
00:19:58,580 --> 00:20:01,790

369
00:20:01,790 --> 00:20:05,420
>> Ejja finalment tmur għall-aħħar eżempju tagħna.

370
00:20:05,420 --> 00:20:08,180
Hawnhekk għandna lista
istudenti ta 'differenti.

371
00:20:08,180 --> 00:20:11,350
I trid titkellem ftit
ftit dwar xi aspetti sbieħ

372
00:20:11,350 --> 00:20:14,240
ta 'għall-loops fil JavaScript.

373
00:20:14,240 --> 00:20:17,500
Fil C, għal loops huma tip ta 'limitati.

374
00:20:17,500 --> 00:20:21,490
Huma għandhom struttura fissa, fejn inti
ikollhom varjabbli, għandek kundizzjoni,

375
00:20:21,490 --> 00:20:23,850
u allura inti tagħmel xi ħaġa
fl-aħħar tal-linja.

376
00:20:23,850 --> 00:20:27,560
U ovvjament dan xogħlijiet fl JavaScript,
kif rajna fl-eżempji ta 'qabel.

377
00:20:27,560 --> 00:20:31,030
Iżda għandna wkoll modi nicer
ta 'kif isir dan JavaScript.

378
00:20:31,030 --> 00:20:33,870
Dan jissejjaħ loop foreach.

379
00:20:33,870 --> 00:20:36,580
>> Jiddispjacini, ejja mmorru lura
għall-eżempju seba hawn.

380
00:20:36,580 --> 00:20:39,320
Nistgħu ngħidu wkoll is-sezzjoni hija lista.

381
00:20:39,320 --> 00:20:43,250
Allura tagħti me kull i jew
kull indiċi f'dik il-lista.

382
00:20:43,250 --> 00:20:46,255
Imbagħad nistgħu nibdew l-istudent
bi ftit ċċempel taqsima ta 'i.

383
00:20:46,255 --> 00:20:50,690
Allura kollha tal-kodiċi ta 'i-iffissar
ugwali għal żero u jagħmlu ċert i

384
00:20:50,690 --> 00:20:54,420
huwa inqas mit-tul u l-
jżid wieħed biex i kull darba, li l-

385
00:20:54,420 --> 00:21:00,220
jieħdu ħsieb tal inti pjuttost
nicely ma 'dan loop foreach.

386
00:21:00,220 --> 00:21:02,830
>> Mhux biss do loops foreach
jaħdmu fil-listi jew arranġamenti,

387
00:21:02,830 --> 00:21:06,130
dawn jaħdmu wkoll fl-oġġetti,
li huwa wkoll sbieħ.

388
00:21:06,130 --> 00:21:10,240
Tista 'tikseb l-isem ta'
kull proprjetà billi biss tieħu

389
00:21:10,240 --> 00:21:15,030
dizzjunarju jew oġġett, bħal student,
u mbagħad biss qal jagħtu me kull ewlenin.

390
00:21:15,030 --> 00:21:18,920
A ċavetta tkun li dawn
proprjetajiet, l-isem jew dar.

391
00:21:18,920 --> 00:21:22,870
Allura x'inhu jiġri hawnhekk hija li
aħna jistampa l-ewwel l-isem u mbagħad

392
00:21:22,870 --> 00:21:24,920
l-dar ta 'kull student.

393
00:21:24,920 --> 00:21:29,170
>> I tista 'taħdem dan fil Node
verament malajr biex turi li inti.

394
00:21:29,170 --> 00:21:35,510
Aħna l-ewwel jiksbu l-istil C għal loop, fejn
irridu jiksbu kull oġġett jiġi stampat out.

395
00:21:35,510 --> 00:21:38,910
U allura għandna l-JavaScript
stil, fejn inti tista 'sempliċement

396
00:21:38,910 --> 00:21:41,510
jistampa kull ewlenin
u l-valur individwalment.

397
00:21:41,510 --> 00:21:45,560

398
00:21:45,560 --> 00:21:47,050
>> Kull dritt.

399
00:21:47,050 --> 00:21:52,850
Issa li konna koperti Node.js, naħseb
aħna lesti li tibda ma Meteor.

400
00:21:52,850 --> 00:21:56,070
Like I said, Meteor għamlet biċċa xogħol tajba
tal-kitba xi eżempji lesti

401
00:21:56,070 --> 00:22:00,600
għall ninformak li intom tistgħu tesploraw permezz
dan tutorja jew fil-folder seminar.

402
00:22:00,600 --> 00:22:03,750
Iżda hawnhekk nixtieq li
jibdew aktar mill-bidunett.

403
00:22:03,750 --> 00:22:06,810
>> Ejja toħloq sempliċi biex tagħmel applikazzjoni.

404
00:22:06,810 --> 00:22:14,140
Dan huwa tip ta 'l-bażi ta' dak li l-li
do applikazzjoni I wera inti preċedenti hija.

405
00:22:14,140 --> 00:22:16,990
F'dan tutorja, inti
se tara li hemm

406
00:22:16,990 --> 00:22:20,180
a Meteor kmand joħolqu biex
joħolqu proġett ġdid Meteor.

407
00:22:20,180 --> 00:22:24,510
Ikollok bżonn biex sejħa dan sabiex
biex imexxu proġetti Meteor għaliex

408
00:22:24,510 --> 00:22:27,470
se jimxu l-kmandi
biex jinħolqu l-Meteor

409
00:22:27,470 --> 00:22:31,100
fajls meħtieġa għall-proġett tiegħek.

410
00:22:31,100 --> 00:22:35,920
>> Jekk inti tmur fil-terminal, nistgħu
jmorru fil-folder imsejjaħ pass wieħed.

411
00:22:35,920 --> 00:22:41,240
U pass wieħed se jikkorrispondu ma '
l-ewwel pass fil-tutorja.

412
00:22:41,240 --> 00:22:44,020
Avviż hemm folders, pass
wieħed, pass tnejn, it-triq kollha għal ħamsa.

413
00:22:44,020 --> 00:22:47,835
U kull wieħed huwa li jikkorrispondi
biex pass f'din tutorja.

414
00:22:47,835 --> 00:22:50,960

415
00:22:50,960 --> 00:22:52,780
Jien ser tiftħu
fit editur test tiegħi hawn

416
00:22:52,780 --> 00:22:56,280
hekk nistgħu naraw daqsxejn ta 'dak li ġie maħluq.

417
00:22:56,280 --> 00:22:58,530
Aħna avviż li hemm
huma erba 'partijiet ewlenin.

418
00:22:58,530 --> 00:23:01,170
Hemm direttorju Meteor, .meteor.

419
00:23:01,170 --> 00:23:03,180
U li inti normalment
m'għandekx bżonn tmissx.

420
00:23:03,180 --> 00:23:05,070
Meteor jieħu ħsieb ta '
li folder, u hija biss

421
00:23:05,070 --> 00:23:08,640
jagħmel ċert li tiegħek
proġett se taħdem b'mod korrett.

422
00:23:08,640 --> 00:23:14,580
>> Għandna wkoll tliet files, fajl HTML,
fajl JavaScript, u ​​fajl CSS.

423
00:23:14,580 --> 00:23:18,670
Ejja ewwel tibda bil-fajl HTML.

424
00:23:18,670 --> 00:23:21,310
Ewwel daqqa t'għajn, dan jistenna
bħal dokument normali HTML.

425
00:23:21,310 --> 00:23:23,490
Iżda avviż li hemm
huma differenzi ftit.

426
00:23:23,490 --> 00:23:26,520
Wieħed, dan mhuwiex fil-fatt
dokument HTML kompluta.

427
00:23:26,520 --> 00:23:28,640
Aħna qed nieqsa l-tags HTML.

428
00:23:28,640 --> 00:23:29,700
Dan huwa normali.

429
00:23:29,700 --> 00:23:33,560
Fil Meteor, int mhux mistennija
biex joħolqu dawn HTML tags.

430
00:23:33,560 --> 00:23:35,260
Li isir għalik.

431
00:23:35,260 --> 00:23:38,380
Inti tixtieq li begin-- jekk inti
tixtieq li tinħoloq websajt,

432
00:23:38,380 --> 00:23:40,430
inti biss bżonn biex tibda
mal-tag ras,

433
00:23:40,430 --> 00:23:43,510
jiddefinixxu dak, u mbagħad
jiddefinixxu l-tikketta ġisem.

434
00:23:43,510 --> 00:23:48,940
>> Imma jekk tinnota f'dan
File HTML, għandna ġodda tag.

435
00:23:48,940 --> 00:23:50,350
Għandna l-mudell tag.

436
00:23:50,350 --> 00:23:52,050
Dan mhux HTML normali.

437
00:23:52,050 --> 00:23:55,300
Din hija verżjoni speċjali ta 'HTML
li Meteor tagħmel disponibbli lilek.

438
00:23:55,300 --> 00:23:57,660
Huwa sejjaħ bars ispazju.

439
00:23:57,660 --> 00:24:00,980
Inti tista 'tiddefinixxi templates bħala ftit
moduli, it-tip ta bħall-funzjonijiet helper,

440
00:24:00,980 --> 00:24:03,660
C tiegħek jew kodiċi JavaScript.

441
00:24:03,660 --> 00:24:06,020
Dan template kieku
jkollha isem imsejħa kompitu.

442
00:24:06,020 --> 00:24:10,520
U inti tista 'tara dritt hawn fuq il-linja
13 li inti tista 'sejħa dawn il-mudelli.

443
00:24:10,520 --> 00:24:14,380
U dak Meteor se tagħmel huwa biss
jimlew dawn il-kompiti għalik.

444
00:24:14,380 --> 00:24:17,540

445
00:24:17,540 --> 00:24:22,580
>> Ħaġa oħra li tista 'tinnota hija
daqsxejn differenti huwa dan kull funzjoni.

446
00:24:22,580 --> 00:24:26,130
Kull wieħed se tieħu l-varjabbli
kompiti u tip ta 'jgħaddu minnha

447
00:24:26,130 --> 00:24:28,810
f'dak loop foreach aħna
raw fl-eżempju sebgħa.

448
00:24:28,810 --> 00:24:34,200
Dan jista 'jieħu kull dizzjunarju
jew lista, oġġett jew lista,

449
00:24:34,200 --> 00:24:38,820
u dan ser biss jmorru kollha permezz ta 'l-
Valuri bħal loop foreach kieku.

450
00:24:38,820 --> 00:24:44,110
Allura jekk ikollna mazz ta 'kompiti, dan
se sejħa tal-template fuq kull kompitu.

451
00:24:44,110 --> 00:24:49,590
>> Ejja jitmexxa l-proġett Meteor
biss biex tara li dan jiġri.

452
00:24:49,590 --> 00:24:53,260
I run-proġett Meteor ma
biss Meteor jew Meteor run.

453
00:24:53,260 --> 00:24:56,690
U issa Meteor biss se jkollhom bżonn
biex malajr tipprepara l-proġett,

454
00:24:56,690 --> 00:25:03,320
tibda l-database kif meħtieġ,
u mbagħad wara l-app lokalment.

455
00:25:03,320 --> 00:25:07,200
Aħna tista 'tmur għall-web browser tagħna issa.

456
00:25:07,200 --> 00:25:10,215
U aħna ser tara li aħna
jkollhom app sempliċi ħafna.

457
00:25:10,215 --> 00:25:22,190

458
00:25:22,190 --> 00:25:29,130
Allura dak li aħna raw wriet up kien effettivament
il-pass wieħed, il-fajl pass wieħed.

459
00:25:29,130 --> 00:25:33,260
>> Ejja jimxu fuq pass tnejn biss minħabba
Naħseb li se jservi l-istess għan.

460
00:25:33,260 --> 00:25:36,500
Jien biss se jibdlu
għall-pass tnejn direttorju

461
00:25:36,500 --> 00:25:39,550
u run Meteor darb'oħra hekk nistgħu naraw
l-template aħna biss ħadem ma.

462
00:25:39,550 --> 00:25:43,560

463
00:25:43,560 --> 00:25:45,730
Iva, kwistjoni?

464
00:25:45,730 --> 00:25:49,724
>> UDJENZA: permess Jekk aħna qed jkollna
mċaħħda, huwa that-- x'hemm dan

465
00:25:49,724 --> 00:25:50,390
sejjaħ għal dak?

466
00:25:50,390 --> 00:25:52,154

467
00:25:52,154 --> 00:25:54,070
ROGER ZURAWICKI: Jekk
int taħdem Meteor run,

468
00:25:54,070 --> 00:25:57,280
u inti għandek permess
mċaħħda, xi wħud mill-fajls tiegħek

469
00:25:57,280 --> 00:25:59,070
jista 'ma jkollhomx is-sett permess id-dritt.

470
00:25:59,070 --> 00:26:03,970
Allura inti għandek tiċċekkja fejn
l-permessi huma off.

471
00:26:03,970 --> 00:26:06,030
Huma jistgħu jkunu off fil
proġett Meteor tiegħek,

472
00:26:06,030 --> 00:26:08,550
jew jistgħu jkunu off fil-
Meteor fajls infushom.

473
00:26:08,550 --> 00:26:13,742
>> UDJENZA: Jekk I jitniżżel dan biss issa
minn GitHub tiegħek, allura x'għandi nagħmel

474
00:26:13,742 --> 00:26:16,110
[Inaudible]?

475
00:26:16,110 --> 00:26:20,110
>> ROGER ZURAWICKI: Jekk inti tixtieq
biex tagħmel żgur li int tista 'aċċess,

476
00:26:20,110 --> 00:26:21,450
hemm kmand inti tista 'taħdem.

477
00:26:21,450 --> 00:26:26,590
Let me malajr jiktbu out
sabiex in-nies oħra jistgħu jarawha.

478
00:26:26,590 --> 00:26:30,670
Jien ser tiftaħ ġdid tab hawn
u jmorru fil folder seminar tiegħi.

479
00:26:30,670 --> 00:26:33,500

480
00:26:33,500 --> 00:26:36,490
Chmod huwa l-kmand
għall-bidla permessi,

481
00:26:36,490 --> 00:26:40,060
u inti tista 'tgħid r għar tagħmel dan
recursively għal kull fajl.

482
00:26:40,060 --> 00:26:46,040
U permessi, inti tista 'tipprova 0755
biex tiżgura ruħek li għandek aċċess sħiħ,

483
00:26:46,040 --> 00:26:47,820
u kulħadd jista 'jinqara.

484
00:26:47,820 --> 00:26:50,100
U jekk inti biss run
dan il-kmand, dan ser tagħmel

485
00:26:50,100 --> 00:26:55,800
żgur li l-permessi huma
jikkontrolla l-direttorju kollu.

486
00:26:55,800 --> 00:26:59,160
Running ls-l inti tista 'turi l-
permessi f'aktar dettall.

487
00:26:59,160 --> 00:27:01,290
Dan jidher OK.

488
00:27:01,290 --> 00:27:03,900
>> X'hemm aktar importanti huwa
li inti għandek tlieta

489
00:27:03,900 --> 00:27:06,610
rwx għall-fajls kollha fil
l-direttorju seminar.

490
00:27:06,610 --> 00:27:09,415

491
00:27:09,415 --> 00:27:11,330
Did li ssolvi l-problema?

492
00:27:11,330 --> 00:27:13,735
>> UDJENZA: Hija tgħid nieqsa
operant [inaudible].

493
00:27:13,735 --> 00:27:17,980

494
00:27:17,980 --> 00:27:18,740
[Inaudible]

495
00:27:18,740 --> 00:27:20,490
ROGER ZURAWICKI: You
għandek taċċerta ruħek li

496
00:27:20,490 --> 00:27:23,022
jkollhom dot fl-aħħar tal-kmand tiegħek.

497
00:27:23,022 --> 00:27:23,938
UDJENZA: [inaudible].

498
00:27:23,938 --> 00:27:36,395

499
00:27:36,395 --> 00:27:37,520
ROGER ZURAWICKI: Kull dritt.

500
00:27:37,520 --> 00:27:42,220
Let us malajr jmorru lura għall-
ospitanti lokali, l-app għandna.

501
00:27:42,220 --> 00:27:46,640
U tkun taf tara li għandna
kompiti ftit hawn, kif mistennija.

502
00:27:46,640 --> 00:27:49,330

503
00:27:49,330 --> 00:27:51,990
Għandna mazz ta 'CSS, li
inti m'għandekx bżonn ninkwetaw dwar.

504
00:27:51,990 --> 00:27:53,740
Il Meteor tutorja
biss jagħtik din lilek

505
00:27:53,740 --> 00:27:58,010
biex jagħmlu tiegħek biex tagħmel lista ħarsa a
daqsxejn nicer milli l-HTML sempliċi.

506
00:27:58,010 --> 00:28:02,290
U aħna għandna l-fajl JavaScript, li
I ser imorru aktar fid-dettall daqsxejn aktar tard,

507
00:28:02,290 --> 00:28:04,272
iżda hija biss tipprovdi dawn il-kompiti.

508
00:28:04,272 --> 00:28:04,980
Dan huwa wieħed kompitu.

509
00:28:04,980 --> 00:28:05,740
Dan huwa kompitu tnejn.

510
00:28:05,740 --> 00:28:06,590
Dan huwa kompitu tlieta.

511
00:28:06,590 --> 00:28:09,720
Allura dan huwa d-data tal-Meteor jkollna.

512
00:28:09,720 --> 00:28:15,590
>> Waħda mill-affarijiet jibred dwar Meteor hija
li l-bidliet jista 'jiġri awtomatikament.

513
00:28:15,590 --> 00:28:18,990
Jekk jien ridt li jibdlu l-
isem tal-ewwel kompitu,

514
00:28:18,990 --> 00:28:22,490
għalhekk ngħid dan mhux
kompitu wieħed, u jien isalvawh,

515
00:28:22,490 --> 00:28:26,370
allura meta mmur il-web
browser, inti tista jġedded dan,

516
00:28:26,370 --> 00:28:30,861
u awtomatikament jgħid
dan mhuwiex kompitu wieħed.

517
00:28:30,861 --> 00:28:32,860
Tista 'tagħmel l-istess ħaġa
fi kwalunkwe ta 'dawn il-fajls.

518
00:28:32,860 --> 00:28:37,940
Agħmel bidla, minflok li tagħmel
lista, I se jkollhom dan tiegħi li tagħmel lista.

519
00:28:37,940 --> 00:28:40,980
>> U ħaġa waħda inti biss innutat,
li jien ma jkollhomx biex tiffriska.

520
00:28:40,980 --> 00:28:43,960
L-idea ta iġjeniċi huwa tip
ta solvuti għalik ma Meteor.

521
00:28:43,960 --> 00:28:48,970
Kull meta hija tiżvela l-bidliet fajl,
se tagħbija l-bidliet għalik.

522
00:28:48,970 --> 00:28:53,110
Dan jaħdem fuq fajls kollha, kemm jekk
huwa HTML, CSS, JavaScript jew.

523
00:28:53,110 --> 00:28:57,990
Biex nuruk dak li dan app look
bħall mingħajr CSS, I tista 'tneħħi dan kollu.

524
00:28:57,990 --> 00:29:04,720
U meta huwa tgħabba mill-ġdid, issa għandek
a mhux bħala sbieħ li tħares li tagħmel lista.

525
00:29:04,720 --> 00:29:06,370
Ejja tpoġġi dak il-kontenut lura.

526
00:29:06,370 --> 00:29:11,343
U żgur biżżejjed,
refreshes, u CSS tagħna huwa lura.

527
00:29:11,343 --> 00:29:11,843
Great.

528
00:29:11,843 --> 00:29:15,700

529
00:29:15,700 --> 00:29:20,010
>> Aħna issa tista 'timxi fuq mal-tutorja.

530
00:29:20,010 --> 00:29:23,360
Ejja nitkellmu dwar żewġ stadji, templates.

531
00:29:23,360 --> 00:29:27,140
Dan huwa dak li aħna biss raw
mal-kompiti differenti.

532
00:29:27,140 --> 00:29:31,550
Meteor se tispjega li int dak li
mudelli u kif din il-loġika taħdem.

533
00:29:31,550 --> 00:29:34,760
Imma ejja biss ħarsa lejn il-kodiċi li
ara jekk nistgħu jagħmlu sens minnha.

534
00:29:34,760 --> 00:29:38,030

535
00:29:38,030 --> 00:29:41,460
>> Fl-applikazzjonijiet sempliċi ħafna,
bħal dak li għandna fil-sempliċi

536
00:29:41,460 --> 00:29:44,550
li tagħmel, pass wieħed, pass tnejn, pass
tlieta, pass erbgħa, pass ħamsa,

537
00:29:44,550 --> 00:29:45,700
aħna ma jkollhom l-ebda folders.

538
00:29:45,700 --> 00:29:47,533
Aħna ma jkollhom l-server
folder semmejt.

539
00:29:47,533 --> 00:29:50,510
Aħna ma jkollhom l-klijent
folder li kien imsemmi.

540
00:29:50,510 --> 00:29:52,290
Allura Meteor se jimxu il-fajls kollha.

541
00:29:52,290 --> 00:29:55,210
Hija ser run kemm fuq il-
klijent, kemm fuq is-server.

542
00:29:55,210 --> 00:29:58,840
>> U jekk inti tixtieq partijiet tal tiegħek JavaScript
kodiċi jiddekorri biss fuq il-klijent,

543
00:29:58,840 --> 00:30:02,350
dawn jeħtieġu li jagħmlu ċert li inti għandek
l jekk id-dikjarazzjoni, it-tip ta 'bħal dak

544
00:30:02,350 --> 00:30:04,890
għandna fil-fajl JavaScript tagħna hawn.

545
00:30:04,890 --> 00:30:08,010
Allura Meteor, biss jekk
huwa l-klijent, imbagħad I

546
00:30:08,010 --> 00:30:12,355
tixtieq li jiddefinixxu template
imsejħa kompiti helper.

547
00:30:12,355 --> 00:30:15,050

548
00:30:15,050 --> 00:30:19,260
What dan il-kodiċi verament
ma huwa jgħid hemm

549
00:30:19,260 --> 00:30:21,800
oġġett imsejħa template
li Meteor jipprovdi.

550
00:30:21,800 --> 00:30:23,270
U aħna qed tmur biex iżżid helper.

551
00:30:23,270 --> 00:30:27,680
Helpers huma dawn il-kompiti,
dawn l-affarijiet bħall-kompiti.

552
00:30:27,680 --> 00:30:33,890
>> Int ser ikollok tara li jekk immorru lura għall-
File HTML, we called kull wieħed fuq il-kompiti.

553
00:30:33,890 --> 00:30:35,750
Kompiti mhuwiex definit fil-HTML.

554
00:30:35,750 --> 00:30:37,770
Huwa definit fil-JavaScript.

555
00:30:37,770 --> 00:30:42,610
U Meteor jeħtieġ li tkun taf dak kompiti hu
meta aħna jmorru fil-JavaScript hawn.

556
00:30:42,610 --> 00:30:45,550
Kompiti huwa dan helper.

557
00:30:45,550 --> 00:30:49,830
Helper, inti tista 'taħseb
bħala varjabbli template.

558
00:30:49,830 --> 00:30:51,000
U dak ma kompiti do?

559
00:30:51,000 --> 00:30:53,580
Ukoll, dan jirritorna l-lista ta 'valuri.

560
00:30:53,580 --> 00:30:56,750
Għaliex dan huwa lista,
nistgħu sejħa kull fiha.

561
00:30:56,750 --> 00:30:58,590
Allura hu għalhekk li aħna sejħa kull fuq il-ħidmiet.

562
00:30:58,590 --> 00:30:59,730
U issa għandna kompitu.

563
00:30:59,730 --> 00:31:02,850

564
00:31:02,850 --> 00:31:03,990
>> X'jagħmel il-kompitu do?

565
00:31:03,990 --> 00:31:07,740
Ukoll, dan ikollu din vleġġa
hawn wara l-braces kaboċċi.

566
00:31:07,740 --> 00:31:09,130
Dan ifisser kompitu huwa template.

567
00:31:09,130 --> 00:31:11,100
Mhuwiex helper,
bħal dak li aħna biss raw.

568
00:31:11,100 --> 00:31:12,872
Huwa template konna definiti.

569
00:31:12,872 --> 00:31:14,080
U fejn kienu we definiti dan?

570
00:31:14,080 --> 00:31:16,950
Imxejna ddefinietu hawn taħt dritt hawn.

571
00:31:16,950 --> 00:31:21,160
>> Dan kollu template ma huwa jirrendi
oġġett lista, u dan jitlob test.

572
00:31:21,160 --> 00:31:24,160
Issa, it-test jidher li jkun
helper, imma jien ser nuruk

573
00:31:24,160 --> 00:31:26,610
li dan huwa effettivament xorta
membru data tal-kompiti.

574
00:31:26,610 --> 00:31:29,230

575
00:31:29,230 --> 00:31:33,670
Meta inti sejħa kull wieħed, hija tmur fis
l-istruttura tad-data ftit.

576
00:31:33,670 --> 00:31:39,130
Bħall-loop foreach, issa biss jistenna
fl-ewwel element fil-għan tagħna.

577
00:31:39,130 --> 00:31:41,850
Naraw li t-test huwa
definit hawn fil-għan tagħna.

578
00:31:41,850 --> 00:31:45,350
Allura Meteor huwa intelliġenti li tkun taf li
aħna qed jitkellem dwar dan it-test,

579
00:31:45,350 --> 00:31:47,630
mhux l-helper imsejħa test.

580
00:31:47,630 --> 00:31:52,120
Hija biss gets l-valur ta 'dan
test hawn u displays iqisha bħala HTML,

581
00:31:52,120 --> 00:31:55,475
u li kif id-data tmur
mill-JavaScript għall-HTML.

582
00:31:55,475 --> 00:32:03,320

583
00:32:03,320 --> 00:32:07,030
>> Nimxu fuq għalkemm, f'dan l-eżempju
aħna hard kodifikati dawk il-valuri.

584
00:32:07,030 --> 00:32:10,440
Meteor ma tnejn verament
affarijiet sbieħ għalina.

585
00:32:10,440 --> 00:32:15,050
Minbarra l-riffriskar ħajjin li aħna
wera, tmexxi wkoll database tagħna.

586
00:32:15,050 --> 00:32:18,750
Jekk kellek biex jaħdmu ma PHP,
kellek biex jiġi kkonfigurat phpMyAdmin.

587
00:32:18,750 --> 00:32:21,320
You kellhom jagħmlu ċert tiegħek
tabelli kienu kollha fil-verifika.

588
00:32:21,320 --> 00:32:24,760
You kellha tagħmel ħafna xogħol biex tagħmel
żgur data tiegħek kien ifformattjat korrett,

589
00:32:24,760 --> 00:32:27,880
u PHP jista jikkomunika magħha.

590
00:32:27,880 --> 00:32:30,170
>> Issa, Meteor juża mudell ġdid.

591
00:32:30,170 --> 00:32:32,310
Dan huwa mod aktar modern
tat-tqandil database.

592
00:32:32,310 --> 00:32:34,580
Huwa teknoloġija msejħa MongoDB.

593
00:32:34,580 --> 00:32:38,740
Eżatt bħal fil-JavaScript, rajna li dan
ma jimpurtax liema tipi tad-data kellhom.

594
00:32:38,740 --> 00:32:39,640
Kollox kien var.

595
00:32:39,640 --> 00:32:40,570
Dan ma kienx charstar.

596
00:32:40,570 --> 00:32:40,930
Ma kienx xi int.

597
00:32:40,930 --> 00:32:41,970
Dan ma kienx Struct.

598
00:32:41,970 --> 00:32:44,210
Kien biss var dan, var dik.

599
00:32:44,210 --> 00:32:46,320
>> MongoDB tip ta 'l-istess mod xogħlijiet.

600
00:32:46,320 --> 00:32:48,160
Inti ma għandekx biex jiddefinixxu tabelli tiegħek.

601
00:32:48,160 --> 00:32:50,860
Inti ma jkollhom jgħidu tabella
għandha isem, li għandha int.

602
00:32:50,860 --> 00:32:54,710
Hija għandha, I do not know, a
dollaru, li hija deċimali.

603
00:32:54,710 --> 00:32:58,360
Huwa biss f'dawn JavaScript oġġetti,
dawn vars kollha, essenzjalment.

604
00:32:58,360 --> 00:33:02,780
U dan huwa verament b'saħħtu
mod biex prototip app tiegħek.

605
00:33:02,780 --> 00:33:06,190
U hu għalhekk li Meteor
jieħu vantaġġ ta 'dan.

606
00:33:06,190 --> 00:33:11,080
>> Jekk immorru pass tlieta,
ejja ara dak li nbidlet.

607
00:33:11,080 --> 00:33:15,480
Jekk inħarsu lejn il-todos HTML, mhux wisq.

608
00:33:15,480 --> 00:33:17,170
CSS ma nbidel f'xejn.

609
00:33:17,170 --> 00:33:22,420
Iżda l-bidla żgħira naraw fil HTML
huwa konna bidlet kif il-kompiti hija definita.

610
00:33:22,420 --> 00:33:23,800
Kompiti issa hija funzjoni.

611
00:33:23,800 --> 00:33:25,800
Dan ifisser li kull
ħin irridu li tikseb il-kompiti,

612
00:33:25,800 --> 00:33:27,480
aħna qed tmur biex imexxu din il-funzjoni.

613
00:33:27,480 --> 00:33:29,230
Hija ma jirritorna l-
funzjoni bħala valur.

614
00:33:29,230 --> 00:33:33,710
>> Meteor huwa intelliġenti biex tmexxi effettivament l-
funzjoni biex tara dak li aħna toħroġ.

615
00:33:33,710 --> 00:33:36,650
U dan jirritorna dan ħaġa imsejħa xogħlijiet.

616
00:33:36,650 --> 00:33:40,650
Imxejna kompiti definiti fuq linja waħda,
u huwa ġabra Mongo.

617
00:33:40,650 --> 00:33:43,170
Mongo hija tirreferi għall
database Meteor tuża,

618
00:33:43,170 --> 00:33:48,420
u dan ġdida ifisser biss ejja jagħmlu
ġabra ġdida, sejħa hija kompiti.

619
00:33:48,420 --> 00:33:53,540
Fil MySQL, dan ikun ekwivalenti għal
tfittex għall-ħidmiet mejda imsejħa.

620
00:33:53,540 --> 00:33:56,350
Mongo għandha kollezzjonijiet, mhux tabelli.

621
00:33:56,350 --> 00:34:00,100
Allura dan jistenna biss għal ħidmiet.

622
00:34:00,100 --> 00:34:04,820
>> Issa, template fil tagħna
helper fil-mudell, kollha

623
00:34:04,820 --> 00:34:08,380
għandna nagħmlu biex tikseb l-
kompiti hija din il-funzjoni, isibu

624
00:34:08,380 --> 00:34:11,710
u dan Brace vojta.

625
00:34:11,710 --> 00:34:14,150
Dan huwa aktar partikolari għall sintassi Mongo.

626
00:34:14,150 --> 00:34:16,159
Hemm ħafna ta '
dokumentazzjoni online għal kif

627
00:34:16,159 --> 00:34:19,360
inti tista 'tagħmel effiċjenti u
verament utli Mongo queries.

628
00:34:19,360 --> 00:34:25,560
Imma xi ħaġa bħal din hija tajba
biżżejjed għal ftit konstatazzjoni tal-informazzjoni kollha.

629
00:34:25,560 --> 00:34:30,100
>> Issa, waħda mill-kwistjonijiet inti tista 'tara
hija li aħna qatt attwalment żid data.

630
00:34:30,100 --> 00:34:35,020
Allura x'jiġri meta aħna
tmexxi effettivament pass tliet?

631
00:34:35,020 --> 00:34:37,550
Ejja malajr tmur fis
pass tlieta u run Meteor.

632
00:34:37,550 --> 00:34:42,870

633
00:34:42,870 --> 00:34:45,650
Avviż li kelli Meteor ieħor
proġett running x'imkien ieħor,

634
00:34:45,650 --> 00:34:49,110
hekk Meteor ma simili li.

635
00:34:49,110 --> 00:34:52,810
Jien biss ser malajr qrib
il-Meteor oħra bil Control C,

636
00:34:52,810 --> 00:34:55,780
jmorru fis pass tlieta,
u run Meteor darb'oħra.

637
00:34:55,780 --> 00:35:01,070

638
00:35:01,070 --> 00:35:03,180
Avviż huwa li jibdew
MongoDB għaliex MongoDB

639
00:35:03,180 --> 00:35:06,370
hija parti ta 'kull proġett Meteor.

640
00:35:06,370 --> 00:35:09,190
>> Għalhekk jgħid applikazzjoni tiegħi żbalji.

641
00:35:09,190 --> 00:35:10,590
C'est karatteristika sbieħ Meteor għandha.

642
00:35:10,590 --> 00:35:13,700
Jagħmel żgur tiegħek
HTML huwa vvalidat tajjeb.

643
00:35:13,700 --> 00:35:17,710
Ejja malajr nħarsu lejn għaliex dan jista 'jkun.

644
00:35:17,710 --> 00:35:26,110
Jidher Għandi aċċidentalment
kkupjati l-HTML code ħażin.

645
00:35:26,110 --> 00:35:30,610
Jekk I ħlief issa, Meteor
awtomatikament jerġa 'jinbeda l-server,

646
00:35:30,610 --> 00:35:34,650
u issa l-app qed taħdem kif mistenni.

647
00:35:34,650 --> 00:35:39,220
Avviż biex jiffissaw dan, inti tista 'biss run
l-istess fajl HTML minn pass tnejn,

648
00:35:39,220 --> 00:35:40,380
kopja fis pass tlieta.

649
00:35:40,380 --> 00:35:43,290

650
00:35:43,290 --> 00:35:45,917
>> Aħna tista 'tmur lura għall-ospitanti lokali tagħna.

651
00:35:45,917 --> 00:35:47,500
U issa naraw għandna tagħna li tagħmel lista.

652
00:35:47,500 --> 00:35:50,070
Great, imma hija vojta.

653
00:35:50,070 --> 00:35:54,210
Aħna ma attwalment ikollhom xi
kompiti fit-database Mongo tagħna.

654
00:35:54,210 --> 00:35:57,930
Mela ejja nitkellmu dwar
Ftit modi kif nistgħu nagħmlu dan.

655
00:35:57,930 --> 00:36:03,240
Jekk immorru lura għall-terminal, aħna
tista 'qrib dan u run Meteor Mongo.

656
00:36:03,240 --> 00:36:05,320
>> Jekk int familjari
mal-mod kif Meteor xogħlijiet,

657
00:36:05,320 --> 00:36:14,100
dan fil-fatt jagħtik aċċess
għall-MongoDB sħiħa għall Meteor.

658
00:36:14,100 --> 00:36:17,570
Avviż li inti għandek tkun qed taħdem
Meteor ewwel biex dan jaħdem.

659
00:36:17,570 --> 00:36:23,840
Mela jekk I run dan fil ġdid tab, I
tista 'tmur lura għall-istess direttorju.

660
00:36:23,840 --> 00:36:29,040

661
00:36:29,040 --> 00:36:32,570
U issa Meteor xogħlijiet biss multa.

662
00:36:32,570 --> 00:36:33,600
Din hija fil-pront.

663
00:36:33,600 --> 00:36:36,350

664
00:36:36,350 --> 00:36:38,790
Let me jagħmilha daqsxejn
akbar hekk nistgħu naraw.

665
00:36:38,790 --> 00:36:41,550
Dan jidher daqsxejn differenti minn
dak li inti tista 'tintuża biex inti

666
00:36:41,550 --> 00:36:42,869
don verament ma jeħtiġux li jużaw Mongo.

667
00:36:42,869 --> 00:36:45,410
Il-punt kollu ta 'lili hawnhekk huwa
sabiex inti tista 'tuża JavaScript.

668
00:36:45,410 --> 00:36:48,250
Imma jekk int kurjuż,
l-API Mongo ma

669
00:36:48,250 --> 00:36:50,730
jużaw SQL, il Mistoqsija Strutturat Lingwa.

670
00:36:50,730 --> 00:36:55,570
Hija tuża lingwa tiegħu stess li
jistenna ħafna bħall JavaScript.

671
00:36:55,570 --> 00:37:00,520
Malajr ħafna, nistgħu nsibu
il tabella via db.tasks.

672
00:37:00,520 --> 00:37:08,940
U huwa javżak me
jinstabx jekk aħna run isibu,

673
00:37:08,940 --> 00:37:13,450
tip ta 'simili għal dak li kellna ma'
Meteor, nistgħu tagħbija l-elementi kollha.

674
00:37:13,450 --> 00:37:17,330
Il-problema hija, aħna ma
attwalment ikollhom xi kompiti definiti.

675
00:37:17,330 --> 00:37:20,600
Għalhekk ma tistax tikseb minnhom.

676
00:37:20,600 --> 00:37:22,130
>> Nistgħu daħħal, għalkemm.

677
00:37:22,130 --> 00:37:25,170
Allura aħna tista 'taħdem insert
ma daħħal kmand.

678
00:37:25,170 --> 00:37:29,140
U aħna biss jagħtu
oġġett, u aħna biss

679
00:37:29,140 --> 00:37:31,840
kun żgur li l-format huwa dak li nistennew.

680
00:37:31,840 --> 00:37:35,030
Jekk ħarisna lejn pass tnejn,
rajna li kull kompitu

681
00:37:35,030 --> 00:37:39,590
kien oġġett ta 'test
bħala l-muftieħ u tkun xi tkun

682
00:37:39,590 --> 00:37:41,640
tiegħek biex tagħmel oġġett kien bħala varjabbli.

683
00:37:41,640 --> 00:37:44,680
Allura nistgħu nagħmlu xi ħaġa hawn.

684
00:37:44,680 --> 00:37:50,160
>> Aħna jista 'jkollhom dan daħħal kompitu
sejjaħ I ġejjin minn Mongo.

685
00:37:50,160 --> 00:37:52,570
U aħna istampa Ikteb, u din tmur.

686
00:37:52,570 --> 00:37:56,900
Nistgħu run isibu darb'oħra, u aħna
tara li hemm huwa oġġett hawn.

687
00:37:56,900 --> 00:38:01,810
Mongo jassenja magħha ID, li inti
don verament m'għandekx bżonn ninkwetaw dwar.

688
00:38:01,810 --> 00:38:06,690
X'hemm importanti li inti huwa l-data
inti tpoġġi fil, huwa l-informazzjoni li inti tikseb out.

689
00:38:06,690 --> 00:38:10,500
>> Ejja ħa mmorru lura għall-websajt tagħna,
u ħej, kompitu tagħna mgħobbija.

690
00:38:10,500 --> 00:38:13,987
U inti tista 'tara li
minħabba Meteor hija ferm intelliġenti

691
00:38:13,987 --> 00:38:16,570
u dejjem refreshes għalik, I
ma kellux tmissx il-paġna.

692
00:38:16,570 --> 00:38:19,160
Hija awtomatikament mgħobbija.

693
00:38:19,160 --> 00:38:23,520
>> Ejja run xi kodiċi fil
JavaScript għalkemm biex jagħmlu dan.

694
00:38:23,520 --> 00:38:26,120
Bħal għandna Node fid-dahar
tmiem biex tesegwixxi out JavaScript,

695
00:38:26,120 --> 00:38:29,280
nistgħu wkoll tmexxi JavaScript
direttament fil-browsers tagħna.

696
00:38:29,280 --> 00:38:31,970
Tista 'tagħmel dan billi karatteristika
imsejħa Spezzjona Element.

697
00:38:31,970 --> 00:38:34,210
Jekk id-dritt I ikklikkja fuq
taqsima tal-paġna,

698
00:38:34,210 --> 00:38:36,730
hemm għażla
imsejħa Spezzjona Element.

699
00:38:36,730 --> 00:38:38,840
Jekk int taħdem
browser bħal Safari, inti

700
00:38:38,840 --> 00:38:45,430
jista 'jkollok bżonn biex jippermettu iżviluppatur tiegħek
għodod qabel ikollok din il-karatteristika.

701
00:38:45,430 --> 00:38:46,930
>> What we care about huwa l-console.

702
00:38:46,930 --> 00:38:48,930
Allura aħna se biss jmorru għall-
console fil-qiegħ.

703
00:38:48,930 --> 00:38:52,110

704
00:38:52,110 --> 00:38:55,970
Issa nistgħu run kwalunkwe JavaScript
hawnhekk, bħall-JavaScript

705
00:38:55,970 --> 00:38:58,860
fajls I wera fl-eżempju JS.

706
00:38:58,860 --> 00:39:02,040
Imma issa ejja nħarsu lejn il-kompiti.

707
00:39:02,040 --> 00:39:04,955
Nistgħu run kmand tagħna.

708
00:39:04,955 --> 00:39:07,830
U nisperaw I ser ikunu jistgħu jagħmlu
hija daqsxejn akbar hekk nistgħu kollha tara.

709
00:39:07,830 --> 00:39:14,390

710
00:39:14,390 --> 00:39:18,450
>> Jekk aħna run tasks.find, u tkun taf
tara li dan huwa l-istess kodiċi eżatt

711
00:39:18,450 --> 00:39:24,840
li l-użi tal-fajl JavaScript
fil-pass tlieta, din task.find.

712
00:39:24,840 --> 00:39:29,100
Nistgħu imexxu l-istess ħaġa, u
issa irridu jiksbu xi għalf stramb.

713
00:39:29,100 --> 00:39:31,050
Kif nistgħu attwalment tikseb l-informazzjoni?

714
00:39:31,050 --> 00:39:34,860
Well, aħna għandna biex imexxu dan il-
kmand imsejħa jġibu.

715
00:39:34,860 --> 00:39:37,150
>> Dan huwa utli ħafna għall debugging.

716
00:39:37,150 --> 00:39:41,000
Dak li inti tikseb hawnhekk huwa
cursor, u dan huwa

717
00:39:41,000 --> 00:39:44,890
mod sabiħ Meteor għandha
data fetching ottimizzati.

718
00:39:44,890 --> 00:39:48,270
Dan cursor għandu l-karatteristiċi għall-
aġġornament ħajjin u iġjeniċi il-paġna

719
00:39:48,270 --> 00:39:49,650
meta xi ħaġa inbidlet.

720
00:39:49,650 --> 00:39:51,280
Iżda dan mhux se tikseb us-data.

721
00:39:51,280 --> 00:39:52,720
Nistgħu nibdew d-data permezz jġibu.

722
00:39:52,720 --> 00:39:56,880
U inti tara għandna oġġett, u
huwa biss bħal dak li kellna fil Mongo,

723
00:39:56,880 --> 00:40:00,040
ma 'ID u t-test nitfgħu fl.

724
00:40:00,040 --> 00:40:04,200
>> Allura kif nistgħu daħħal oġġett fil Meteor?

725
00:40:04,200 --> 00:40:07,250
Well, aħna biss għandhom kompiti.

726
00:40:07,250 --> 00:40:09,990
U allura aħna tista 'taħdem il-
istess daħħal kmand,

727
00:40:09,990 --> 00:40:17,520
tagħti dizzjunarju jew oġġett
bl-istess format, it-test

728
00:40:17,520 --> 00:40:22,340
u mbagħad I ġejjin mill-console.

729
00:40:22,340 --> 00:40:27,240
Agħti ħarsa hawn fuq għaliex meta I
tagħmel dan, turi up fuq il-websajt

730
00:40:27,240 --> 00:40:29,660
awtomatikament.

731
00:40:29,660 --> 00:40:33,291
>> Avviż li inti tista 'tpoġġi xi ħaġa
inti tixtieq f'dawn il-punti.

732
00:40:33,291 --> 00:40:35,040
Huwa ma jkollu li
jkollhom struttura fissa.

733
00:40:35,040 --> 00:40:39,790
I jista 'jkollhom daqs il-
numru tlieta u b ugwali għal falza.

734
00:40:39,790 --> 00:40:41,600
U x-xogħlijiet kollha.

735
00:40:41,600 --> 00:40:46,000
I jistgħu anki tagħżel li ma
jinkludu test fil-livelli kollha.

736
00:40:46,000 --> 00:40:48,320
Dan huwa biss mhux rakkomandat
għalkemm għaliex imbagħad Meteor

737
00:40:48,320 --> 00:40:50,920
mhux se tkun taf x'għandek display.

738
00:40:50,920 --> 00:40:53,110
Iżda f'kull każ, aħna
tikseb ID, u li l-

739
00:40:53,110 --> 00:40:54,785
l-ID ta 'l-oġġett inti tista' tuża.

740
00:40:54,785 --> 00:41:01,120

741
00:41:01,120 --> 00:41:03,280
>> Kif aħna tkompli ma
pass erba 'u pass ħamsa,

742
00:41:03,280 --> 00:41:06,870
l-tutorja ser jurik modi li
inti tista 'toħloq l-elementi UI jużaw

743
00:41:06,870 --> 00:41:13,130
l-HTML inti taf li
toħloq tant kompiti differenti.

744
00:41:13,130 --> 00:41:15,440
Ejja nħarsu lejn pass erbgħa verament malajr.

745
00:41:15,440 --> 00:41:18,290
Aħna ser tara li aħna miżjud
taqsima dwar avvenimenti.

746
00:41:18,290 --> 00:41:20,874
Templates jista 'jkollhom
helpers, li tikseb us data.

747
00:41:20,874 --> 00:41:22,040
Iżda tista 'wkoll sejħa avvenimenti.

748
00:41:22,040 --> 00:41:25,300
U dan huwa fejn Jittieħed
isir utli, għaliex avvenimenti

749
00:41:25,300 --> 00:41:28,590
huma dak li jiġri meta inti ikklikkja fuq
affarijiet differenti fuq il-websajt tiegħek.

750
00:41:28,590 --> 00:41:33,790
>> Hawnhekk, kodiċi tagħna huwa javżak
us li jżidu dan l-avveniment.

751
00:41:33,790 --> 00:41:38,860
Żid dan meta inti stajt sottomessa
xi ħaġa bil-kompitu ġdid klassi.

752
00:41:38,860 --> 00:41:41,910
Dak li għandek hawnhekk hija selettur CSS.

753
00:41:41,910 --> 00:41:45,870
Allura dan jistenna biss għal HTML
element li għandu l-kompitu ġdid klassi.

754
00:41:45,870 --> 00:41:47,940
U huwa jistenna għall-avveniment, bħal jissottomettu.

755
00:41:47,940 --> 00:41:51,050
Attivitajiet oħra jinkludu
click, imbagħad jerġgħu, ikklikkja darbtejn,

756
00:41:51,050 --> 00:41:54,450
simili għal dak ikollok fil HTML normali.

757
00:41:54,450 --> 00:41:56,770
>> What inti tagħti hawn issa hija funzjoni.

758
00:41:56,770 --> 00:42:01,210
U inti jista 'jkollhom tiegħek
kodiċi f'dik il-funzjoni.

759
00:42:01,210 --> 00:42:06,360
Din il-funzjoni huwa dak jispiċċa jkollna
sejjaħ meta inti tissottometti dan il-kompitu ġdid.

760
00:42:06,360 --> 00:42:12,170
Ejja nħarsu lejn l-HTML biss hekk aħna
jifhmu dak li dan il-kompitu ġdid huwa.

761
00:42:12,170 --> 00:42:15,570
Imxejna miżjud forma hawn
bil kompitu ġdid klassi.

762
00:42:15,570 --> 00:42:19,880
U hija għandha input li jieħu test.

763
00:42:19,880 --> 00:42:22,605
U dan huwa fejn aħna
se jżid kompiti ġodda tagħna.

764
00:42:22,605 --> 00:42:25,520

765
00:42:25,520 --> 00:42:29,780
>> Ejja jimxu pass erbgħa fil-
websajt biex tara dak li jidher qisu.

766
00:42:29,780 --> 00:42:32,710
Nistgħu nieqaf ewwel out
tal-MongoDB kellna

767
00:42:32,710 --> 00:42:35,300
minn preċedenti tagħna
pereżempju fir-Kontroll C.

768
00:42:35,300 --> 00:42:37,690
U ejja bidla hija fis
il-pass erba direttorju.

769
00:42:37,690 --> 00:42:41,000

770
00:42:41,000 --> 00:42:42,920
Aħna ser run Meteor darb'oħra
biex jibdew il-server.

771
00:42:42,920 --> 00:42:46,850

772
00:42:46,850 --> 00:42:50,510
U sfortunatament, kelli Meteor
li jibda fil f'terminal ieħor.

773
00:42:50,510 --> 00:42:53,080
Allura jien biss ser
jagħmlu ċert li din magħluqa.

774
00:42:53,080 --> 00:43:01,805
Ejja nieqaf dan u l-bidla
għal parti erbgħa, pass erbgħa.

775
00:43:01,805 --> 00:43:02,305
OK.

776
00:43:02,305 --> 00:43:11,220

777
00:43:11,220 --> 00:43:13,250
>> Issa kodiċi Meteor tagħna qed taħdem.

778
00:43:13,250 --> 00:43:19,480
U inti tista 'tara li aġġornata, mingħajr
us saħansitra jkollhom jġedded il-paġna.

779
00:43:19,480 --> 00:43:24,410
Xi nbidel hawn issa huwa
li aħna ma jkollhomx xi kompiti,

780
00:43:24,410 --> 00:43:29,530
iżda aħna għandna forma hawn, dan
kaxxa ta 'test, li żżid il-kompiti ġodda tagħna.

781
00:43:29,530 --> 00:43:31,550
U aħna tista tip kompitu tagħna hawn.

782
00:43:31,550 --> 00:43:34,564
I ġejjin mill--paġna HTML.

783
00:43:34,564 --> 00:43:36,105
Meta I-istampa Ikteb, li ltqajna sottomessa.

784
00:43:36,105 --> 00:43:39,180

785
00:43:39,180 --> 00:43:44,540
>> Nistgħu naraw x'ġara kif
definita mill-kodiċi JavaScript.

786
00:43:44,540 --> 00:43:49,930
What din il-funzjoni ma kien
tieħu t-test mill-forma,

787
00:43:49,930 --> 00:43:53,680
u mbagħad biss imsejħa tasks.insert,
bħal għamilna fil-console.

788
00:43:53,680 --> 00:43:56,410
Huma għażlu wkoll li żżid id-data createdAt.

789
00:43:56,410 --> 00:43:59,840
Din hija kif inti kieku
tispeċifika l-ħin kurrenti.

790
00:43:59,840 --> 00:44:03,220
Wara dan, huwa ikklerja l-formola billi tagħmel
żgur il-valur huwa l-sekwenza vojta.

791
00:44:03,220 --> 00:44:06,550
>> U allura huwa jappella jirritornaw falza li
kun żgur xejn jiġri.

792
00:44:06,550 --> 00:44:10,350
Meta inti tirritorna falza minn
forma avveniment, li jieqaf l-eżekuzzjoni.

793
00:44:10,350 --> 00:44:14,520
Say forma għandu azzjoni,
bħal jissottomettu għal paġna PHP.

794
00:44:14,520 --> 00:44:16,980
Jekk inti ma kinux lura
falza, youd tirritorna veru.

795
00:44:16,980 --> 00:44:18,500
Ikun jispiċċaw jagħmlu dik it-talba.

796
00:44:18,500 --> 00:44:20,590
Interċettazzjonijiet Foloz uu
waqfiet dan id-dritt hemmhekk.

797
00:44:20,590 --> 00:44:23,510

798
00:44:23,510 --> 00:44:28,610
>> Allura li kien demo ftit dwar
kif Meteor xogħlijiet, u konna

799
00:44:28,610 --> 00:44:30,980
Kien wara l-tutorja għal waqt.

800
00:44:30,980 --> 00:44:33,560
U inti tista 'jekk jogħġbok tħossok
ħielsa li tkompli tagħmel dan.

801
00:44:33,560 --> 00:44:37,760
Hemm ħafna ta 'riżorsi,
u l-tutorja huwa attwalment biss

802
00:44:37,760 --> 00:44:40,400
tajjeb ħafna dwar tispjega
x'inhu għaddej.

803
00:44:40,400 --> 00:44:44,362
I do jridu juru inti issa, fl
l-minuti ftit fadlilna,

804
00:44:44,362 --> 00:44:46,320
liema huma wħud mill-
Karatteristiċi jkessaħ ta 'Meteor,

805
00:44:46,320 --> 00:44:48,772
u liema huma wħud mill-
pakketti aktar utli.

806
00:44:48,772 --> 00:44:51,730
Waħda mill-affarijiet kbar dwar Meteor
hija li għandek sistema pakkett.

807
00:44:51,730 --> 00:44:55,620
Tista 'faċilment jinkorpora kodiċi
li ħafna eluf ta 'żviluppaturi

808
00:44:55,620 --> 00:44:58,840
kitbu madwar id-dinja
fis-proġett Meteor tiegħek.

809
00:44:58,840 --> 00:45:02,410
Eżempju wieħed ta 'dan huwa dak li inti tista'
do fil-pass disgħa ta 'l-tutorja, fejn

810
00:45:02,410 --> 00:45:07,435
inti qed tipprova żżid il-kontijiet
għall-proġett Meteor tiegħek.

811
00:45:07,435 --> 00:45:10,010

812
00:45:10,010 --> 00:45:13,690
Jekk għandna PHP CS50
proġett, rridu naraw

813
00:45:13,690 --> 00:45:17,810
li jistrieħu fuq il-qafas
jew kodiċi tagħna stess biex jagħmlu

814
00:45:17,810 --> 00:45:20,820
żgur aħna sikur jimmaniġġaw
passwords u usernames

815
00:45:20,820 --> 00:45:23,120
u l-ħażna tal-database
u kollha ta 'dak.

816
00:45:23,120 --> 00:45:25,670
>> Jirriżulta Meteor għandha xi
pakketti li tagħmel dan għalik,

817
00:45:25,670 --> 00:45:29,160
u li tagħmel dan faċilment.

818
00:45:29,160 --> 00:45:31,950
Dak li nistgħu nagħmlu hu li żżid pakketti ftit.

819
00:45:31,950 --> 00:45:37,450
Mela ejja tagħmel dan id-dritt
issa fil tagħna console.

820
00:45:37,450 --> 00:45:42,460
Jien ser nieqaf-proġett u
dritt issa tmur fis sempliċi todos.

821
00:45:42,460 --> 00:45:47,450

822
00:45:47,450 --> 00:45:50,050
Issa, sempliċi todos huwa
il-proġett li inti

823
00:45:50,050 --> 00:45:53,500
se jkollhom wara li qed isir
bil-pass 11 jew 12 pass,

824
00:45:53,500 --> 00:45:55,250
fl-aħħar ta dan tutorja.

825
00:45:55,250 --> 00:45:58,642
U ejja malajr tħares lejn din biex tara
liema huma l-karatteristiċi differenti li għandna.

826
00:45:58,642 --> 00:46:01,610
Ejja biss tagħmel ċert huwa taħdem.

827
00:46:01,610 --> 00:46:04,400
Kultant hija tieħu filwaqt
li jġedded, iżda hawnhekk huwa.

828
00:46:04,400 --> 00:46:09,710
>> Għandna għażla tagħna biex jaħbu
kompiti kompluti, u aħna tista 'tiffirma.

829
00:46:09,710 --> 00:46:11,770
U dan sar ma
il-pakkett Meteor.

830
00:46:11,770 --> 00:46:12,270
Huwa kbir.

831
00:46:12,270 --> 00:46:14,910
Aħna issa username
u sinjal password.

832
00:46:14,910 --> 00:46:19,170
Imma x'jiġri jekk ridna li żżid
tip ieħor ta 'mekkaniżmu login?

833
00:46:19,170 --> 00:46:22,560
Ejja ngħidu jien ridt li log
ma kont Meteor tiegħi.

834
00:46:22,560 --> 00:46:27,270
Jien ser jimxu żid Meteor, u dan
huwa l-sintassi biex jiżdiedu pakketti.

835
00:46:27,270 --> 00:46:32,160
Nista 'ngħid kontijiet, u accounts.meteor.

836
00:46:32,160 --> 00:46:35,720
Huwa ser issa jsibu
il-pakkett u t-tagħbija dan.

837
00:46:35,720 --> 00:46:40,480
Tista 'tara li għandi mhux
sabu l-isem pakkett dritt.

838
00:46:40,480 --> 00:46:42,820
>> Allura kif taħseb li taf dwar il-pakketti?

839
00:46:42,820 --> 00:46:46,380
Ukoll hemm websajt kbir, magħmula
disponibbli mill-poplu Meteor,

840
00:46:46,380 --> 00:46:47,780
imsejħa atmospherejs.com.

841
00:46:47,780 --> 00:46:52,520
Atmospherejs, kelma waħda, dot
com, huwa repożitorju kbir

842
00:46:52,520 --> 00:46:57,660
għall-konstatazzjoni kollha ta 'l Meteor
pakketti fil-repożitorju.

843
00:46:57,660 --> 00:47:05,140
I tista 'tfittex il-kontijiet, u mbagħad
inneħħu urini l-għalf rilevanti,

844
00:47:05,140 --> 00:47:07,320
pakketti kollha bl-isem tal-kont tal-.

845
00:47:07,320 --> 00:47:10,180

846
00:47:10,180 --> 00:47:13,270
>> Filwaqt li t-tagħbijiet, nistgħu nippruvaw
jżid xi pakketti oħra.

847
00:47:13,270 --> 00:47:19,380
Forsi l-pakkett Meteor ma tkunx qed taħdem
dritt issa, imma jien tista 'żżid Facebook.

848
00:47:19,380 --> 00:47:22,860

849
00:47:22,860 --> 00:47:27,190
I tista 'żżid il-kont u mbagħad
jitmexxa l-proġett Meteor darb'oħra.

850
00:47:27,190 --> 00:47:33,260

851
00:47:33,260 --> 00:47:36,900
Ladarba dan jibda, ejja ara
x'hemm biddlet fuq il-websajt.

852
00:47:36,900 --> 00:47:40,010

853
00:47:40,010 --> 00:47:44,580
Tista see-- I jista
għandek jġedded it here.

854
00:47:44,580 --> 00:47:47,320
>> I jkollhom buttuna biex
kkonfigurat login Facebook.

855
00:47:47,320 --> 00:47:49,765
U hawn, I kollha
l-istruzzjonijiet Meteor

856
00:47:49,765 --> 00:47:52,960
ħejjiet għalik għal
twaqqif ta 'app Facebook.

857
00:47:52,960 --> 00:47:58,990
U inti tista 'tuża dik
informazzjoni li jżidu IDs tiegħek.

858
00:47:58,990 --> 00:48:04,130
Ladarba dan isir, inti ser ikollok
Login Facebook jaħdmu fil-app tiegħek.

859
00:48:04,130 --> 00:48:08,559
>> Jien biss se tikseb
ID app u sigriet,

860
00:48:08,559 --> 00:48:10,100
biss biex turi li inti kif dan jista 'jaħdem.

861
00:48:10,100 --> 00:48:16,000

862
00:48:16,000 --> 00:48:20,360
Ikollok bżonn ta 'kont Facebook
biex jużaw Facebook għażliet iżviluppatur.

863
00:48:20,360 --> 00:48:31,160

864
00:48:31,160 --> 00:48:35,290
Let me biss malajr issib il-
Ċwievet Meteor li huma meħtieġa.

865
00:48:35,290 --> 00:48:46,994

866
00:48:46,994 --> 00:48:49,160
Għandi proġett ieħor Meteor
li jien ser tuża,

867
00:48:49,160 --> 00:48:55,590
u jien biss ser jieħdu
il-keys minn dan il-fajl.

868
00:48:55,590 --> 00:49:14,410

869
00:49:14,410 --> 00:49:20,930
>> U ladarba I jsibuha, I ser tkun biss kapaċi
li kopja dawn iċ-ċwievet fis Facebook tiegħi.

870
00:49:20,930 --> 00:49:23,489
Allura hawnhekk huwa ċ-ċavetta.

871
00:49:23,489 --> 00:49:24,280
U dan huwa sigrieta.

872
00:49:24,280 --> 00:49:26,071
Inti m'għandekx tkun
qsim dan ma 'nies.

873
00:49:26,071 --> 00:49:28,870

874
00:49:28,870 --> 00:49:30,910
U allura inti tagħti sigriet app tiegħek.

875
00:49:30,910 --> 00:49:33,560
U dan huwa hekk Facebook
jaf int int.

876
00:49:33,560 --> 00:49:37,630

877
00:49:37,630 --> 00:49:39,080
U inti tiffranka l-konfigurazzjoni.

878
00:49:39,080 --> 00:49:45,160

879
00:49:45,160 --> 00:49:48,640
>> Naħseb fil-proċess I
waqfu app Meteor tiegħi.

880
00:49:48,640 --> 00:49:52,290
So I biss jixtiequ jagħmlu
ċert li huwa għadu hemm.

881
00:49:52,290 --> 00:49:54,962

882
00:49:54,962 --> 00:49:58,610
OK, ejja kun żgur server Meteor tagħna
qed taħdem hekk il-paġna web qed taħdem.

883
00:49:58,610 --> 00:50:02,440
Avviż jekk aħna tieqaf il-Meteor
server, il-paġna għadha hemm.

884
00:50:02,440 --> 00:50:04,700
Hija biss mhux se taġġorna jibqgħalu.

885
00:50:04,700 --> 00:50:10,290
Il-server Meteor hija meħtieġa
biex jiġi żgurat il-paġna hija mixgħula.

886
00:50:10,290 --> 00:50:14,050
>> OK, stajt sottomessa lilha, u issa
I tista 'tiffirma ma Facebook.

887
00:50:14,050 --> 00:50:17,400
Issa huwa biss kwistjoni ta '
jkollhom pop up Facebook

888
00:50:17,400 --> 00:50:21,710
u t-tqegħid fil-kont tiegħek
informazzjoni u qtugħ fil.

889
00:50:21,710 --> 00:50:24,520

890
00:50:24,520 --> 00:50:27,930
Ladarba inti tagħmel dan, Facebook jista
NAG inti għal xi sigurtà aktar.

891
00:50:27,930 --> 00:50:29,810
Allura aħna ser biss tieqaf hemm.

892
00:50:29,810 --> 00:50:34,110
Il-punt hu li meta inti qed isir
ma 'dan, inti ser ikollok login Facebook.

893
00:50:34,110 --> 00:50:37,850
>> Meteor għandha mazz ta '
pakketti oħra kif ukoll.

894
00:50:37,850 --> 00:50:39,200
Inti tista 'log ma Google +.

895
00:50:39,200 --> 00:50:40,500
Inti tista 'log ma GitHub.

896
00:50:40,500 --> 00:50:42,170
Inti tista 'log ma Twitter.

897
00:50:42,170 --> 00:50:44,870
Jew jekk inti tfittex, inti ser
issib ħafna affarijiet oħra

898
00:50:44,870 --> 00:50:49,170
bħal Meetup, LinkedIn,
u Developer Meteor.

899
00:50:49,170 --> 00:50:53,100
Allura Developer Meteor kien il-
pakkett I kienet tfittex.

900
00:50:53,100 --> 00:50:56,170
Meteor żid f'kontijiet mhux meteor-iżviluppatur.

901
00:50:56,170 --> 00:51:06,192

902
00:51:06,192 --> 00:51:07,900
Fil-frattemp, I
tixtieq ukoll li jirrakkomandaw

903
00:51:07,900 --> 00:51:11,340
xi pakketti oħra għall-proġetti tiegħek.

904
00:51:11,340 --> 00:51:14,670
Hija tista 'tkun utli biex
jinkludu l-pakkett jQuery.

905
00:51:14,670 --> 00:51:17,909
Dan jippermettilek li tuża
jQuery fl-klijenti tiegħek.

906
00:51:17,909 --> 00:51:21,200
Inti tista 'biss tagħmel dan b'linja waħda, u
Meteor se tagħmel żgur li int sa data

907
00:51:21,200 --> 00:51:21,825
fuq jQuery.

908
00:51:21,825 --> 00:51:24,330

909
00:51:24,330 --> 00:51:27,450
I wkoll jirrakkomandaw Houston: admin.

910
00:51:27,450 --> 00:51:31,550
>> Dan huwa tip simili ta 'phpMyAdmin
tip ta 'għodda għall-MongoDB tiegħek.

911
00:51:31,550 --> 00:51:33,890
Dan jippermettilek li jeditjaw
data tiegħek pjuttost faċilment

912
00:51:33,890 --> 00:51:37,950
mingħajr ma jkollhom imorru għall-qoxra Mongo,
bħal kelli jsir aktar kmieni fis-seminar.

913
00:51:37,950 --> 00:51:43,160

914
00:51:43,160 --> 00:51:47,101
Allura issa li thats running, ejja jimxu
Meteor darb'oħra u ara dak li nistgħu nagħmlu.

915
00:51:47,101 --> 00:51:56,240

916
00:51:56,240 --> 00:52:00,720
>> Tinnota li jżid xi pakketti
jista 'jkollhom magħhom tippreżenta xi twissijiet.

917
00:52:00,720 --> 00:52:02,720
Inti ma jkollokx bżonn ninkwetaw
dwar li ma Houston.

918
00:52:02,720 --> 00:52:06,040

919
00:52:06,040 --> 00:52:10,810
Allura aħna issa jistgħu jkollhom l-għażla
biex jiġi kkonfigurat admin Meteor.

920
00:52:10,810 --> 00:52:15,080
U li jagħtuk l-direzzjonijiet
jekk inti tixtieq li twaqqaf dak up.

921
00:52:15,080 --> 00:52:17,750

922
00:52:17,750 --> 00:52:20,440
>> Nistgħu wkoll issa jmorru lejn / admin.

923
00:52:20,440 --> 00:52:23,280
Dan huwa offrut lilek
mill-pakkett Houston.

924
00:52:23,280 --> 00:52:27,470
U dan huwa Meteor interface admin.

925
00:52:27,470 --> 00:52:30,660
Inti biss toħloq
kont admin, bħall-bqija.

926
00:52:30,660 --> 00:52:38,150
U jekk inti jġedded il-paġna, inti tista '
għandhom xi kollezzjonijiet juru up.

927
00:52:38,150 --> 00:52:40,980

928
00:52:40,980 --> 00:52:43,460
>> Huwa għodda utli ħafna,
u I jirrakkomanda bil-qawwa dan.

929
00:52:43,460 --> 00:52:46,717

930
00:52:46,717 --> 00:52:49,050
Tista 'tara li minħabba
Houston kienet tagħti xi żbalji,

931
00:52:49,050 --> 00:52:52,330
aħna ma jkollhom l-ebda kollezzjonijiet
juru up dritt issa.

932
00:52:52,330 --> 00:52:56,800
Il-mod inti tuża Houston huwa
jagħmlu ċert li din il-funzjoni gets

933
00:52:56,800 --> 00:52:58,860
sejjaħ sempliċi-todos tiegħek.

934
00:52:58,860 --> 00:53:01,370
Allura Houston ma
jafu liema kompiti tiegħi huma.

935
00:53:01,370 --> 00:53:04,490
>> Waqqafna Mongo
imsejħa kompiti ta 'ġbir.

936
00:53:04,490 --> 00:53:11,390
Ejja jmorru fis sempliċi todos u biss
kun żgur li fil-JavaScript,

937
00:53:11,390 --> 00:53:16,295
żidna kompiti lill kollezzjonijiet tagħna.

938
00:53:16,295 --> 00:53:19,340

939
00:53:19,340 --> 00:53:25,670
Imxejna issa salvati, u huwa bini
l-applikazzjoni, iġjeniċi.

940
00:53:25,670 --> 00:53:26,750
U ejja ara.

941
00:53:26,750 --> 00:53:29,090
Issa għandna xi kompiti.

942
00:53:29,090 --> 00:53:32,630
U nistgħu żid xi kompiti ġodda.

943
00:53:32,630 --> 00:53:35,840
Iżda jekk irridu li żżid il-kompiti,
ejja jagħmlu dan ma 'l-app innifsu.

944
00:53:35,840 --> 00:53:39,660

945
00:53:39,660 --> 00:53:41,050
>> Issa nistgħu żid xi data.

946
00:53:41,050 --> 00:53:53,410
Hi, dan huwa kompitu.

947
00:53:53,410 --> 00:53:57,080
Jidher tip ta 'stramba li
aħna mhux qed tara l-ebda kompiti.

948
00:53:57,080 --> 00:54:00,290

949
00:54:00,290 --> 00:54:05,260
Aħna tista 'tixtieq li jiċċekkjaw jekk aħna ltqajna xi
żbalji hawn, jew forsi x'imkien ieħor.

950
00:54:05,260 --> 00:54:08,810

951
00:54:08,810 --> 00:54:20,260
Jekk immorru fis admin, li jidher stramba.

952
00:54:20,260 --> 00:54:24,080
Jekk inti iġbed il-repożitorju
wara dan is-seminar,

953
00:54:24,080 --> 00:54:27,580
I se tagħmel ċert li
sempliċi todos jaħdem ma Houston.

954
00:54:27,580 --> 00:54:30,370
Sfortunatament, dan ma jidhirx li
tkun qed taħdem f'dan il-mument ħafna.

955
00:54:30,370 --> 00:54:34,810

956
00:54:34,810 --> 00:54:37,640
>> Hemm xi mistoqsijiet oħra?

957
00:54:37,640 --> 00:54:41,800
Houston normalment huwa
għodda li jaħdem tajjeb ħafna.

958
00:54:41,800 --> 00:54:44,510
Houston speċifikament huwa daqsxejn
buggier minn dawk l-oħra,

959
00:54:44,510 --> 00:54:49,470
imma I do jirrakkomandaw dan meta din taħdem.

960
00:54:49,470 --> 00:54:50,080
Yeah.

961
00:54:50,080 --> 00:54:52,395
>> UDJENZA: X'tista 'tagħmel
mal-pakkett Facebook

962
00:54:52,395 --> 00:54:54,270
ladarba l-utent ikun illoggjat
ma Facebook tagħhom?

963
00:54:54,270 --> 00:54:55,978
>> ROGER ZURAWICKI: Ladarba
a tal-utent illoggjat,

964
00:54:55,978 --> 00:54:59,540
inti tista 'tagħmel sejħiet fuq in-API Facebook.

965
00:54:59,540 --> 00:55:02,890
A lott ta 'dik qiegeħd f'li
kif Facebook jiftaħ API tagħhom.

966
00:55:02,890 --> 00:55:05,120
Meteor, aċċerta ruħek li
għandhom il-konnessjoni.

967
00:55:05,120 --> 00:55:09,300
Imma kollox wara li din hija kwistjoni
tat-tagħlim kif tuża l-API Facebook.

968
00:55:09,300 --> 00:55:10,216
UDJENZA: [inaudible].

969
00:55:10,216 --> 00:55:17,756

970
00:55:17,756 --> 00:55:18,880
ROGER ZURAWICKI: Kull dritt.

971
00:55:18,880 --> 00:55:21,670
Grazzi ħafna għall-
dan is-seminar CS50 fil Meteor.

972
00:55:21,670 --> 00:55:24,060
Jekk għandek xi mistoqsijiet,
inti tista 'email me

973
00:55:24,060 --> 00:55:28,319
fl-indirizz email tiegħi
elenkati hawn taħt is-seminar.

974
00:55:28,319 --> 00:55:30,110
U jien ser ikunu kuntenti li
jwieġbu l-mistoqsijiet tiegħek.

975
00:55:30,110 --> 00:55:33,020
I ser tkun ukoll fuq il-
CS50 Hackathon għandhom

976
00:55:33,020 --> 00:55:35,550
għandek bżonn għajnuna ma 'proġetti Meteor tiegħek.

977
00:55:35,550 --> 00:55:37,650
Grazzi għall-ħars.

978
00:55:37,650 --> 00:55:38,816