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

javascriptдÀ෽ʽ֮Îå

5¡¢Óà ¹¹Ô캯Êý+Ô­ÐÍ ¶¨ÒåÒ»¸öÀࣻͬһ¹¹Ô캯Êý¿ÉÒÔ¶¨Òå³ö¶à¸öÀàÐÍ



/**
* $define дÀ๤¾ßº¯ÊýÖ®¶þ
* @param {Object} constructor
* @param {Object} prototype
*/
function $define(constructor,prototype) {
var c = constructor || function(){};
var p = prototype || {};
return function() {
for(var atr in p)
arguments.callee.prototype[atr] = p[atr];
c.apply(this,arguments);
}
}

ÓëµÚËÄÖÖ·½Ê½ÀàËÆ£¬ÈÔÈ»Óù¹Ô캯Êý£¬Ô­ÐͶÔÏ󣬶¨ÒåÁ½¸öÀà¡£
//¹¹Ô캯Êý
function Person(name) {
this.name = name;
}
//Ô­ÐͶÔÏó
var proto = {
getName : function(){return this.name},
setName : function(name){this.name = name;}
}
//¶¨ÒåÁ½¸öÀà
var Man = $define(Person,proto);
var Woman = $define(Person,proto);
console.log(Man == Woman);//false,ͬһ¸ö¹¹Ô캯Êý£¨Person£©¶¨Ò岻ͬµÄÀà


Ïà¹ØÎĵµ£º

javascriptÊó±êË«»÷ʱ´¥·¢Ê¼þ´óÈ«4

javascriptʼþÁбí½â˵
ʼþ ä¯ÀÀÆ÷Ö§³Ö ½â˵
Ò»°ãʼþ onclick IE3¡¢N2 Êó±êµã»÷ʱ´¥·¢´Ëʼþ
ondblclick IE4¡¢N4 Êó±êË«»÷ʱ´¥·¢´Ëʼþ
onmousedown IE4¡¢N4 °´ÏÂÊó±êʱ´¥·¢´Ëʼþ
onmouseup IE4¡¢N4 Êó±ê°´ÏºóËÉ¿ªÊó±êʱ´¥·¢´Ëʼþ
onmouseover IE3¡¢N2 µ±Êó±êÒÆ¶¯µ½Ä³¶ÔÏó·¶Î§µÄÉÏ·½Ê±´¥·¢´Ëʼþ
onmou ......

JavaScript ¶ÔÏóÓëÊý×é²Î¿¼´óÈ«

±¾ÎÄÁоÙÁ˸÷ÖÖJavaScript¶ÔÏóÓëÊý×é,ͬʱ°üÀ¨¶ÔÉÏÊöÿһ¶ÔÏó»òÊý×éËùÍê³É¹¤×÷µÄ¼ò¶ÌÃèÊö,ÒÔ¼°ÓëÆäÏà¹ØµÄÊôÐÔ·½·¨,ÒÔ¼°Ê¼þ´¦Àí³ÌÐò¡£
¡¡¡¡B.1 anchor¶ÔÏó
¡¡¡¡Ê¹ÓÃ<A NAME=>±ê¼Ç´´½¨µÄHTMLÃèµãÄܱ»Ò»¸öÁ´½Ó×÷ΪĿ±êÈç¹ûêµã°üÀ¨HREF=ÌØÐÔ,ÔòËüÒ²ÊÇÒ»¸öÁ´½Ó¶ÔÏó¡£
¡¡¡¡anchor¶ÔÏóÊÇdocument¶ÔÏóµÄÒ»¸öÊôÐÔ,Ëü±¾Éíà ......

javascript typeofµÄÓ÷¨

javascript typeofµÄÓ÷¨
¾­³£»áÔÚjsÀïÓõ½Êý×é,±ÈÈç ¶à¸öÃû×ÖÏàͬµÄinput, ÈôÊǶ¯Ì¬Éú³ÉµÄ, Ìύʱ¾ÍÐèÒªÅÐ¶ÏÆäÊÇ·ñÊÇÊý×é.
if(document.mylist.length != "undefined" ) {} Õâ¸öÓ÷¨ÓÐÎó.
ÕýÈ·µÄÊÇ if( typeof(document.mylist.length) != "undefined" ) {}
»ò if( !isNaN(document.mylist.length) ) {}
typeofµÄÔË ......

JavaScript ¼òµ¥Ê÷ÐÍ

<html>
 <head>
  <script type="text/javascript">
   function tree(treethis){
    if (treethis.alt == "+"){
     treethis.alt = "-";
     document.getElementById("bench").style. ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ