1
00:00:00,000 --> 00:00:00,310

2
00:00:00,310 --> 00:00:03,130
>> DAVID J. Malan: Hebu kutekeleza mtandao
ukurasa kwamba anasema hello user, pamoja

3
00:00:03,130 --> 00:00:06,830
njia kuonyesha DOM,
hati kitu mfano, au mti

4
00:00:06,830 --> 00:00:10,220
muundo kwamba kweli ni chini ya
kofia wakati kutoa ukurasa wa mtandao.

5
00:00:10,220 --> 00:00:11,440
>> Hebu tuangalie.

6
00:00:11,440 --> 00:00:15,950
Hapa, katika dom-0.html, taarifa kwamba ndani ya
ya mwili kurasa ', nina

7
00:00:15,950 --> 00:00:19,860
tag fomu, kitambulisho kipekee kwa
ambayo ni, unquote quote, "demo."

8
00:00:19,860 --> 00:00:23,670
Wakati huo huo, mimi pia na onsubmit
sifa, inayojulikana kama tukio

9
00:00:23,670 --> 00:00:28,150
handler, onsubmit, ambayo inabainisha kuwa
wakati fomu hii ni kuwasilishwa, a

10
00:00:28,150 --> 00:00:30,800
kazi hiyo inaonekana aitwaye
kusalimiana lazima ifanyike.

11
00:00:30,800 --> 00:00:32,960
Na kisha uongo lazima akarudi.

12
00:00:32,960 --> 00:00:33,830
>> Kwa nini uongo?

13
00:00:33,830 --> 00:00:36,850
Naam, mimi si kweli unataka kuwasilisha
fomu hii kwa server Web kijijini katika

14
00:00:36,850 --> 00:00:37,810
jadi njia.

15
00:00:37,810 --> 00:00:40,850
Nataka kukwepa fomu kuwa
kujisalimisha na kufanya kitu kwa hayo

16
00:00:40,850 --> 00:00:42,690
mteja upande kutumia JavaScript.

17
00:00:42,690 --> 00:00:44,010
Hakika, taarifa hapa.

18
00:00:44,010 --> 00:00:47,290
Wakati mkuu wa mtandao ukurasa wangu, nina
tag script, ndani ya ambayo ni

19
00:00:47,290 --> 00:00:49,420
mwanzo wa kazi ambayo
aitwaye Nisalimieni.

20
00:00:49,420 --> 00:00:51,040
>> Je, mimi kweli wanataka gani?

21
00:00:51,040 --> 00:00:54,530
Naam, ndani ya Nisalimieni, hebu tu
kuwaita kazi tahadhari.

22
00:00:54,530 --> 00:00:57,770
Na kisha magazeti nje kitu
kama hello, na nafasi.

23
00:00:57,770 --> 00:01:01,460
Na kisha concatenate kwenye mwisho
ya kwamba matokeo ya wito

24
00:01:01,460 --> 00:01:08,370
document.getElementByID, inayobainisha
hasa kitambulisho kipekee,

25
00:01:08,370 --> 00:01:10,070
unquote quote, "jina."

26
00:01:10,070 --> 00:01:13,670
>> Na hasa, mara moja tumekuwa wamezipata
kwamba hiki, nodi katika mti

27
00:01:13,670 --> 00:01:17,640
kwamba inawakilisha tovuti hii, hebu
hasa kupata ni thamani na

28
00:01:17,640 --> 00:01:19,320
unaoelezea. thamani.

29
00:01:19,320 --> 00:01:22,060
Na kisha, kwa ajili ya kujifurahisha, hebu
concatenate juu ya ule mwisho wa an

30
00:01:22,060 --> 00:01:23,730
mshangao uhakika.

31
00:01:23,730 --> 00:01:28,460
>> Hebu sasa kuhifadhi faili hii, ni wazi
katika browser, na kuona hello.

32
00:01:28,460 --> 00:01:33,600
http://localhost/dom-0.html.

33
00:01:33,600 --> 00:01:34,670
>> Kuna aina hiyo.

34
00:01:34,670 --> 00:01:36,530
Hebu kwenda mbele na aina kwa jina langu.

35
00:01:36,530 --> 00:01:38,530
Ikifuatiwa na kubonyeza Kuwasilisha.

36
00:01:38,530 --> 00:01:39,910
Na huko tunaona hello, Daudi!

37
00:01:39,910 --> 00:01:42,410

38
00:01:42,410 --> 00:01:43,660
Hiyo mimi.

39
00:01:43,660 --> 00:01:44,363