Ti li畛u t狸m hi畛u jQuery dnh cho ng動畛i m畛i b畉t 畉uLel 畉ng Vn
油
Ti li畛u ny h動畛ng d畉n nh畛ng b畉n m畛i b畉t 畉u h畛c lm vi畛c v畛i jQuery trong vi畛c vi畉t Client Script khi thi畉t k畉 website. Nh畛ng m担 t畉 v h動畛ng d畉n trong ti li畛u ny l h畉t s畛c cn b畉n v ch動a c坦 h動畛ng d畉n n但ng cao no.
Ti li畛u t狸m hi畛u jQuery dnh cho ng動畛i m畛i b畉t 畉uLel 畉ng Vn
油
Ti li畛u ny h動畛ng d畉n nh畛ng b畉n m畛i b畉t 畉u h畛c lm vi畛c v畛i jQuery trong vi畛c vi畉t Client Script khi thi畉t k畉 website. Nh畛ng m担 t畉 v h動畛ng d畉n trong ti li畛u ny l h畉t s畛c cn b畉n v ch動a c坦 h動畛ng d畉n n但ng cao no.
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6. Gi畛i thi畛u v畛 Javascript
o Khi tr狸nh duy畛t (Client browser) truy c畉p
trang web c坦 ch畛a c叩c o畉n m達 x畛 l箪 t畉i
server-side. Server ( run-time engine) se
th動味c hi棚味n cac l棚味nh Server-side Scipts va tra
v畛 n畛i dung HTML cho tr狸nh duy畛t
N畛i dung html tr畉 v畛 ch畛 y畉u bao g畛m: m達
html, client-script.
7. N畛i dung
Gi畛i thi畛u v畛 Javascript
Nh炭ng Javascript vo trang web
Ki畛u d畛 li畛u & C叩c c炭 ph叩p Javascript
X畛 l箪 s畛 ki畛n
DOM HTML v畛i Javascript
V鱈 d畛
8. Nh炭ng Javascript vo trang web
畛nh ngh挑a script tr畛c ti畉p trong trang html:
<script type=text/javascript>
<!--
// L畛nh Javascript
-->
</script>
Nh炭ng s畛 d畛ng script ci 畉t t畛 1 file .js kh叩c:
<script src=/slideshow/javascript-and-domhtml/18653082/xxx.js></script>
9. Nh炭ng Javascript vo trang web
<html>
<script type="text/javascript">
<head>
some javascript statements
</script>type="text/javascript">
<script
some statements
</script>
</head>
<body>
<script type="text/javascript">
some statements
</script>
<script src=/slideshow/javascript-and-domhtml/18653082/T棚n_file_script.js">method()</script>
<script type=text/javascript>
// g畛i th畛c hi畛n c叩c ph動董ng th畛c 動畛c 畛nh ngh挑a
// trong T棚n_file_script.js
</script>
</body>
</html>
10. Nh炭ng Javascript vo trang web
畉t gi畛a tag <head> v </head>: script s畉 th畛c
thi ngay khi trang web 動畛c m畛.
畉t gi畛a tag <body> v </body>: script trong
ph畉n body 動畛c th畛c thi khi trang web ang m畛
(sau khi th畛c thi c叩c o畉n script c坦 trong ph畉n
<head>).
S畛 l動畛ng o畉n client-script ch竪n vo trang
kh担ng h畉n ch畉.
11. VD: Nh炭ng Javascript vo trang web
<html>
<body>
document.write(Hello world!);
<script type="text/javascript">
document.write(Hello world!);
</script>
</body>
</html>
12. N畛i dung
Gi畛i thi畛u v畛 Javascript
Nh炭ng Javascript vo trang web
Ki畛u d畛 li畛u & C叩c c炭 ph叩p Javascript
X畛 l箪 s畛 ki畛n
DOM HTML v畛i Javascript
V鱈 d畛
19. C但u l畛nh if
if (condition)
{
statement[s] if true
}
else
{
statement[s] if false
}
V鱈 d畛:
var x = 5, y = 6, z;
- if (x == 5) { if (y == 6) z = 17; } else z = 20;
20. C但u l畛nh switch
V鱈 d畛 :
switch (expression) var diem = G;
{ switch (diem) {
case Y:
case label : document.write(Y畉u");
break;
油油油油油油statementlist case TB:
case label : document.write(Trung b狸nh");
break;
statementlist case K:
油 油油... document.write(Kh叩");
break;
油default : case G :
document.write(Gi畛i");
油油油油油油statement list break;
} default:
document.write(Xu畉t s畉c")
}
21. V嘆ng l畉p for
for ([initial expression]; [condition];
[update expression]) {
statement[s] inside loop
}
V鱈 d畛:
var myarray = new Array();
for (i = 0; i < 10; i++)
{
myarray[i] = i;
}
22. V嘆ng l畉p while
while (expression)
{
statements
}
V鱈 d畛:
var i = 9, total = 0;
while (i < 10)
{
total += i * 3 + 5;
i = i +5;
}
23. V嘆ng l畉p do.. while
do
{
statement
}while (expression);
V鱈 d畛:
var i = 9, total = 0;
do
{
total += i * 3 + 5;
i = i +5;
} while (i > 10);
24. N畛i dung
Gi畛i thi畛u v畛 Javascript
Nh炭ng Javascript vo trang web
Ki畛u d畛 li畛u & C叩c c炭 ph叩p Javascript
X畛 l箪 s畛 ki畛n
DOM HTML v畛i Javascript
V鱈 d畛
26. X畛 l箪 s畛 ki畛n cho c叩c th畉 HTML
C炭 ph叩p 1:
<TAG eventHandler = "JavaScript Code">
V鱈 d畛:
<body>
<INPUT TYPE="button NAME="Button1
VALUE="OpenSesame!
onClick="window.open('mydoc.html');">
</body>
L動u 箪: D畉u v
27. X畛 l箪 s畛 ki畛n b畉ng function
<head>
<script language=Javascript>
function GreetingMessage()
{
window.alert(Welcome to my
world);
}
</script>
</head>
<body onload=GreetingMessage()>
</body>
28. X畛 l箪 s畛 ki畛n b畉ng thu畛c t鱈nh
Gan t棚n ham x動 ly cho 1 object event
object.eventhandler = function_name;
V鱈 d畛:
<head>
<script language=Javascript>
function GreetingMessage()
{
window.alert(Welcome to my world);
}
window.onload = GreetingMessage ()
</script>
</head>
<body>
</body>
29. V鱈 d畛: onclick Event
<SCRIPT LANGUAGE="JavaScript">
function compute(frm)
{
var x = frm.expr.value;
result.innerHTML = x*x;
}
</SCRIPT>
<FORM name=frm>
X = <INPUT TYPE="text" NAME="expr" SIZE=15>
<BR><BR>
<INPUT TYPE="button" VALUE=Calculate
ONCLICK="compute(this.form)">
<BR>
X * X = <SPAN ID="result"></SPAN>
</FORM>
30. V鱈 d畛: onFocus - onBlur
X畉y ra khi m畛t thnh ph畉n HTML b畛 focus
(onFocus) v m畉t focus (onBlur)
V鱈 d畛:
<BODY BGCOLOR="lavender">
<FORM>
<INPUT type=text name=myTextbox
onblur=(document.bgColor='aqua')
onfocus=(document.bgColor='dimgray')>
</FORM>
</BODY>
31. N畛i dung
Gi畛i thi畛u v畛 Javascript
Nh炭ng Javascript vo trang web
Ki畛u d畛 li畛u & C叩c c炭 ph叩p Javascript
S畛 d畛ng c叩c 畛i t動畛ng trong Javascript
X畛 l箪 s畛 ki畛n
DOM HTML v畛i Javascript
V鱈 d畛
32. 畛i t動畛ng HTML DOM
DOM = Document Object Model
L t畉p h畛p c叩c 畛i t動畛ng HTML chu畉n 動畛c
d湛ng 畛 truy xu畉t v thay 畛i thnh ph畉n
HTML trong trang web ( thay 畛i n畛i dung ti
li畛u c畛a trang )
M畛t s畛 畛i t動畛ng c畛a DOM: window,
document, history, link, form, frame, location,
event,
33. 畛i t動畛ng Window - DOM
L th畛 hi畛n c畛a 畛i t動畛ng c畛a s畛 tr狸nh duy畛t
T担n ta味i khi m董 1 tai li棚味u HTML
S動 du味ng 棚 truy c但味p th担ng tin c畛a c叩c 畛i
t動畛ng tr棚n c畛a s畛 tr狸nh duy畛t ( t棚n tr狸nh duy畛t,
phi棚n b畉n tr狸nh duy畛t, thanh ti棚u 畛, thanh
tr畉ng th叩i )
34. 畛i t動畛ng Window - DOM
Properties Methods
document alert
event confirm
history
location
prompt
name
blur
navigator close
screen focus
status open
35. 畛i t動畛ng Window - DOM
V鱈 d畛:
<html>
<body>
<script type="text/javascript">
var curURL = window.location;
window.alert(curURL);
</script>
</body>
</html>
36. 畛i t動畛ng Document - DOM
Bi棚u di棚n cho n畛i dung trang HTML ang 動畛c
hi畛n th畛 tr棚n tr狸nh duy畛t
Dung 棚 l但y th担ng tin v棚 tai li棚味u, cac thanh
ph但n HTML va x動 ly s動味 ki棚味n
37. 畛i t動畛ng Document - DOM
Properties Methods
aLinkColor documentElement close
bgColor cookie open
body createTextNode( text ")
fgColor createElement(HTMLtag")
linkColor getElementById(id)
title
URL
vlinkColor
forms[]
images[]
childNodes[]
38. 畛i t動畛ng Document - DOM
Bi畛u di畛n n畛i dung c畛a ti li畛u theo c畉u tr炭c c但y
<html>
<head>
<title>DOM Test</title>
</head>
<body>
<h1>DOM Test Heading</h1>
<hr />
<!-- Just a comment -->
<p id=p1 >A paragraph of <em>text</em>
is just an example</p>
<ul>
<li>
<a href=http://www.yahoo.com > Yahoo!
</a>
</li>
</ul>
</body>
</html>
41. 畛i t動畛ng Document - DOM
getElementById ( id1 )
Tr畉 v畛 node c坦 gi叩 tr畛 thu畛c t鱈nh id = id1
V鱈 d畛:
//<p id="id1" >
// some text Text Node
//</p>
var node = document.getElementById(id1);
var nodeName = node.nodeName; // p
var nodeType = node.nodeType; // 1
var nodeValue = node.nodeValue; // null
var text = node.innerText ; // some text
42. 畛i t動畛ng Document - DOM
createElement ( nodeName )
Cho ph辿p t畉o ra 1 node HTML m畛i t湛y theo
畛i s畛 nodeName 畉u vo
V鱈 d畛:
var imgNode = document.createElement(img);
imgNode.src = /slideshow/javascript-and-domhtml/18653082/images/test.gif;
// <img src=images/test.gif />
43. 畛i t動畛ng Document - DOM
createTextNode ( content )
V鱈 d畛:
var textNode = document.createTextNode(New
text);
var pNode = document.createElement(p);
pNode.appendChild(textNode);
// <p>New text</p>
44. 畛i t動畛ng Document - DOM
appendChild ( newNode )
Ch竪n node m畛i newNode vo cu畛i danh
s叩ch c叩c node con c畛a m畛t node.
V鱈 d畛:
//<p id="id1" >
// some text
//</p>
var pNode = document.getElementById(id1);
var imgNode = document.createElement(img);
imgNode.src = /slideshow/javascript-and-domhtml/18653082/images/test.gif;
pNode.appendChild(imgNode);
//<p id="id1" >
// some text<img src=images/test.gif />
//</p>
45. 畛i t動畛ng Document - DOM
innerHTML
Ch畛 畛nh n畛i dung HTML b棚n trong m畛t node.
V鱈 d畛:
//<p id=para1" >
// some text
//</p>
var theElement = document.getElementById("para1");
theElement.innerHTML = Some <b> new </b> text;
// K畉t qu畉 :
// <p id=para1 >
// Some <b> new <b/> text
// </p>
46. 畛i t動畛ng Document - DOM
innerText
T動董ng t畛 innerHTML, tuy nhi棚n b畉t k畛 n畛i
dung no 動a vo c滴ng 動畛c xem nh動 l text
h董n l c叩c th畉 HTML.
V鱈 d畛:
var theElement = document.getElementById("para1");
theElement.innerText = Some <b> new </b> text;
// K畉t qu畉 hi畛n th畛 tr棚n tr狸nh duy畛t
// b棚n trong th畉 p: Some <b> new </b> text
47. N畛i dung
Gi畛i thi畛u v畛 Javascript
Ki畛u d畛 li畛u & C叩c c炭 ph叩p Javascript
Nh炭ng Javascript vo trang web
S畛 d畛ng c叩c 畛i t動畛ng trong Javascript
X畛 l箪 s畛 ki畛n
DOM HTML v畛i Javascript
V鱈 d畛
48. V鱈 d畛: Dynamic Table
Vi畉t trang web cho ph辿p t畉o table c坦 s畛 d嘆ng,
s畛 c畛t do ng動畛i d湛ng nh畉p vo.