Ò׽ؽØÍ¼Èí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

javaScript»ñÈ¡¶ÔÏ󼯺ϣ¨ÁíÒ»ÖÖ·½·¨£©

³ýÁËÓÃgetElementByTagName   µÄÁíÒ»ÖÖ»ñÈ¡¶ÔÏ󼯺ϵķ½·¨
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>ÎÞ±êÌâÎĵµ</title>
</head>
<body>
<form id="one" name="one">
<input type="text" title="sadf" sd="sdf" name="hello" id="hello" value="1" />
<input type="text" name="hello" sd="sasdfasdf" id="hello" value="2" />
<input type="text" name="hello" id="hello" value="3" />
<input type="text" name="hello" id="hello" value="4" />
<input type="text" name="hello" id="hello" value="5" />
<input type="text" name="hello" id="hello" value="6" />
<input type="text" name="hello" id="hello" value="7" />
<input type="text" name="hello" id="hello" value="8" />
<input type="button" name="ss" value="44" onclick="javascript:ss();" />
</form>
<mce:script type="text/javascript" language="javascript"><!--
function ss(){
var ss = getFiles();
alert(ss[1].sd);
}
function getFiles(){
var files = new Array();
var inputs = document.getElementsByTagName("input");

for(var i=0;i<inputs.length;i++)
{
files[i] = inputs[i];
}

return files;
}
window.onload=ss;
// --></mce:script>
</body>
</html>


Ïà¹ØÎĵµ£º

[·­Òë]High Performance JavaScript(033)

Summary  ×ܽá
    When web pages or applications begin to feel slow, analyzing assets as they come over the wire and profiling scripts while they are running allows you to focus your optimization efforts where they are needed most.
    µ±ÍøÒ³»òÓ¦ÓóÌÐò±äÂýʱ£¬·ÖÎ ......

JavaScript ¶ÁÈ¡ JSON


JSON:
[{"subjecttypeId":"1","subjectName":"67","scope":"1",},{"subjecttypeId":"1","subjectName":"345","scope":"1"}]
JavaScript:
       var result = window.eval('(' + JSON+ ')');

for(var p in result){

result[p].subjectName;

alert(result[p] ......

Javascript ʹÓÃIDE¹¤¾ß½øÐе÷ÊÔ

1. Javascript Debug Toolkit½éÉÜ
JSDT(Javascript Debug Toolkit)ÊÇÒ»¸öÓÃÓÚjavascriptµ÷ÊÔµÄeclipse
²å¼þ£¬ÓÃÓÚµ÷ÊÔjavascript¡£JSDT¿ÉÒÔ¿çä¯ÀÀÆ÷µ÷ÊÔ£¬Ö§³ÖÔÚIE,Firefox,Safari,ChromeµÈÖ÷Á÷ä¯ÀÀÆ÷Öе÷ÊÔ
javascript¡£JSDTÖ§³ÖÉèÖöϵ㣬µ¥²½µ÷ÊԵȵ÷ÊÔ¹¤¾ßµÄ»ù±¾ÌØÐÔ¡£
2. ÈçºÎ°²×°
JSDTÊÇ»ùÓÚeclipse3.2+,jdk1.5+ ......

javascript trim·½·¨

ÔÚjavascriptÖеÄstring¶ÔÏóûÓÐtrim·½·¨£¬ËùÒÔtrim¹¦ÄÜÐèÒª×Ô¼ºÊµÏÖ£º
´úÂëÈçÏ£º
Java´úÂë
﹤scriptlanguage=”javascript”﹥   
/**  
*ɾ³ý×óÓÒÁ½¶ËµÄ¿Õ¸ñ  
*/  
String.prototype.trim=function(){      
  &nbs ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ