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 ×îÐÂÎÄÕ : javascript

javascript¿ò¼ÜÖ®¼Ì³Ð»úÖÆ

´óÒ»µãµÄ¿ò¼Ü¶¼ÓÐÕâ¸ö¶«Î÷¡£PrototypeÔ­À´µÄ¼Ì³Ð»úÖÆ·Ç³£Èõ£¬ÎªÁËÓëmootools¶Ô¿¹Ò²Ç¿»¯ÁËÕâÒ»·½Ãæ¡£ÂҪÓÃÔ­Ðͼ̳ÐÀ´Ä£·ÂÀà¼Ì³Ð£¬¶¼»ù±¾´æÔÚÒ»¸ö¿Ë¡º¯Êý¡£°Ñ¸¸ÀàµÄÔ­ÐÍÊôÐÔ¸´ÖƵ½×ÓÀàÉÏÈ¥¡£ÀíÄîµÄ¶«Î÷ÔÝʱÕâô¶à£¬¶¯ÊÖʵ¼ùÒ»ÏÂ×îʵ¼Ê¡£ÎÒÃÇÉè¼ÆÒ»¸öÊý×éÀ࣬ӵÓÐÔ­ÉúÊý×éµÄÄÜÁ¦ÓëÐÂÀ©Õ¹µÄÄÜÁ¦¡£

var isNumber = function(n){
return typeof n === 'number' && isFinite(n);
}
var vArray = function(){
if(arguments.length == 0){
return [];
}else if(arguments.length == 1 && isNumber(arguments[0])){
return new Array(arguments[0]);
}else if(arguments.length > 1){
return Array.prototype.slice.apply(arguments);
}
}
var a = vArray();
alert(a);
var b = vArray(7);
alert(b);
var c = vArray(1,3,"˾ͽÕýÃÀ",true);
alert(c);

ÔËÐдúÂë
ºÜÏÔÈ»ÕâÊǹ¤³§·½·¨£¬Éú³ÉµÄÔ­ÉúÊý×飬Èç¹ûÒªÀ©Õ¹¶ø²»ÎÛȾԭÉúÊý×é¾ÍÓÖÒªÔÙ¼ÓÒ»ÖØ°ü×°¡£ÎÒÃÇ¿´¼Ì³ÐÊÇÔõÑùʵÏֵġ£Õ ......

javascript¿ò¼ÜÖ®¼Ì³Ð»úÖÆ2

 ÎÒÃÇÀ´Ä£·ÂÒ»ÏÂ×îOOµÄmootoolsµÄ¼Ì³Ð»úÖÆ¡£ËüµÄÀà¶¼ÓÐÒ»¸ö½Ð×öinitialize¹¹Ôì·½·¨£¬ÕâÓëJavaµÄÀà¶¼ÓÐÒ»¸öÓëÀàÃûͬÃûµÄ¹¹Ôì·½·¨Ò»ÑùµÄµÀÀí¡£Ö»²»¹ý£¬ÕâЩ½Ðinitialize»òinit¶¼ÊÇ½è¼ø×ÔPrototype£¬¶øPrototypeÄǰïÈËÊÇRuby³öÉí¡£ÎªÁËÇø±ðmootoolsÄÇÖÖÎÛȾԭÉú·½·¨µÄ×ö·¨£¬ÎÒ°ÑÀàµÄ¹¹ÔìÆ÷ÃüÃûΪvariant£¬²¢ÇÒ½ûÖ¹²é¿´¹¹Ôì·½·¨£¨Ïñä¯ÀÀÆ÷½ûÖ¹²é¿´Ô­Éú¶ÔÏóµÄ¹¹Ôì·½·¨ÄÇÑù£©¡£
 
    var variant = function (options){
      options = options || {};
      var initialize = options.initialize || function(){};
      var klass = initialize ;
      klass.constructor = arguments.callee;
      klass.prototype.constructor = klass;
      klass.toString = function(){//½ûÖ¹²é¿´¹¹Ôì·½·¨
        return "function variant(){\n    [variant code]\n}"
      }
    & ......

javascript ×Ö·û´®µÄ³Ë·¨

 ÔÚrubyÖÐÎÒÃÇ¿ÉÒÔͨ¹ý"*"²Ù×÷·ûÈ¥×Ö·û´®½øÐб¶Ôö£¬Èç"ruby"*2Ôò·µ»Ø"rubyruby"¡£ÔÚjavascriptÖУ¬×Ö·û´®Ö»ÄÜÓüӺţ¬Â³Ë·¨Ò²¼Ó·¨Ñݱä¹ýÀ´µÄ¡£ÎÒÃÇ¿ÉÒÔ¸ãÒ»¸öÊÔÊÔ¡£
·½·¨Ò»
  String.prototype.times = function(n) {//IE6 530-640 FF3 400~550 IE8 840 ~1110   chrome 600~1000
    return (new Array(n+1)).join(this);
  };
 
<!doctype html>
<html dir="ltr" lang="zh-CN">
  <head>
    <meta charset="utf-8"/>
    <title>×Ö·û´®µÄ³Ë·¨</title>
    <script type="text/javascript" charset="utf-8">
      window.onload = function(){
  String.prototype.times = function(n) {
    return (new Array(n+1)).join(this);
  };
    var s = "˾ͽÕýÃÀ"
    var start = new Date();
    a = s.times(1000000);
    var end = new Date();
    alert("ËùºÄʱ¼ä ......

htmlÍøÒ³ÖÐʹÓÃjavascript½Å±¾µ÷ÓÃxmlÎĵµÊµÀý

 ±¾Ê¾ÀýÊÇҪʵÏÖÓÃjavascript½Å±¾¶ÁÈ¡xmlÎĵµ£¬ÔÚxmlÎĵµÖÐʵÏÖÔ¼Êø¹¦ÄÜ£¬test.htmlÎļþ´úÂëÈçÏ£º
<html>
 <head>
 <meta http-equiv="content-type" content="text/html;charset=UTF-8">
 <script type="text/javascript">
        var xmlDoc = new ActiveXObject("Microsoft.XMLDOM"); //´´½¨xmlÎĵµ¶ÔÏó£»
       xmlDoc.validateOnParse="true";                                    //¿ªÆôУÑ鹦ÄÜ£»
       xmlDoc.async="false";                                            ......

JavaScript ³£ÓÃ55¸öÀý×Ó

 1. oncontextmenu="window.event.returnValue=false" ½«³¹µ×ÆÁ±ÎÊó±êÓÒ¼ü
<table border oncontextmenu=return(false)> <td>no </table> ¿ÉÓÃÓÚTable
2. <body onselectstart="return false"> È¡Ïûѡȡ¡¢·ÀÖ¹¸´ÖÆ
3. onpaste="return false" ²»×¼Õ³Ìù
4. oncopy="return false;" oncut="return false;" ·ÀÖ¹¸´ÖÆ
5. <link rel="Shortcut Icon" href="favicon.ico"> IEµØÖ·À¸Ç°»»³É×Ô¼ºµÄͼ±ê
6. <link rel="Bookmark" href="favicon.ico"> ¿ÉÒÔÔÚÊղؼÐÖÐÏÔʾ³öÄãµÄͼ±ê
7. <input style="ime-mode:disabled"> ¹Ø±ÕÊäÈë·¨
8. ÓÀÔ¶¶¼»á´ø×Å¿ò¼Ü
<script language="JavaScript"> <!--
if (window == top)top.location.href = "frames.htm"; //frames.htmΪ¿ò¼ÜÍøÒ³
// --> </script>
9. ·ÀÖ¹±»ÈËframe
<SCRIPT LANGUAGE=JAVASCRIPT> <!--
if (top.location != self.location)top.location=self.location;
// --> </SCRIPT>
10. ÍøÒ³½«²»Äܱ»Áí´æÎª
<noscript> <*** src="/*.html>"; </***> </noscript>
11. <input type= ......

ÓÃJavaScript»ñÈ¡¿Í»§¶ËMACµØÖ·(ת)

 <HTML>  
<HEAD><TITLE>WMI Scripting HTML</TITLE>  
    <META http-equiv=Content-Type content="text/html; charset=gb2312">  
    <SCRIPT language=JScript event="OnCompleted(hResult,pErrorObject, pAsyncContext)" for=foo>  
        document.forms[0].txtMACAddr.value = unescape(MACAddr);  
        document.forms[0].txtIPAddr.value = unescape(IPAddr);  
        document.forms[0].txtDNSName.value = unescape(sDNSName);  
        //document.formbar.submit();  
    </SCRIPT>  
 
    <SCRIPT language=JScript event=OnObjectReady(objObject,objAsyncContext) for=foo>  
        if (objObject. ......
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