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

Javascript °´¼üʼþ


AS("#...").keypress(function(event) {
        if (navigator.userAgent.toLowerCase().indexOf("mozilla") >= 0) {
         var $key = event.charCode ;
        } else {
         var $key = event.keyCode ;
        }
        if ($key && ($key < 48 || $key > 57)) {
            event.preventDefault();
        }
});


Ïà¹ØÎĵµ£º

ÓÉdzµ½ÉîÁ˽âJavaScriptÀà

ÀàÊÇʲô£¿
    
   Ðí¶à¸Õ½Ó´¥±à³ÌµÄÅóÓѶ¼¿ÉÄÜÀí½â²»ÁËÀ࣬ÆäʵÀàÊǶÔÎÒÃÇÕâ¸öÏÖʵÊÀ½çµÄÄ£Ä⣬°ÑËü˵³É“Àà±ð”»òÕß“ÀàÐÍ”¿ÉÄÜ»á¸üÈÝÒ×Àí½âһЩ¡£±ÈÈç“ÈË”ÕâÖÖ¶¯
Îï¾ÍÊÇÒ»¸öÀ࣬¶ø¾ßÌåijһ¸öÈ˾ÍÊÇ“ÈË”Õâ¸öÀàµÄÒ»¸öʵÀý
£¬
“È ......

[·­Òë]High Performance JavaScript(004)

XMLHttpRequest Script Injection  XHR½Å±¾×¢Èë
    Another approach to nonblocking scripts is to retrieve the JavaScript code using an XMLHttpRequest (XHR) object and then inject the script into the page. This technique involves creating an XHR object, downloading the JavaScript f ......

JavaScript³£ÓöÔÏóÏê½â

SCRIPT ±ê¼Ç  
ÓÃÓÚ°üº¬JavaScript´úÂë.  
ÊôÐÔ  
LANGUAGE ¶¨Òå½Å±¾ÓïÑÔ  
SRC ¶¨ÒåÒ»¸öURLÓÃÒÔÖ¸¶¨ÒÔ.JS½áβµÄÎļþ  
window¶ÔÏó  
ÿ¸öHTMLÎĵµµÄ¶¥²ã¶ÔÏó.  
ÊôÐÔ  
frames[] ×ÓèåÊý×é.ÿ¸ö×ÓèåÊý×é°´Ô´ÎĵµÖж¨ÒåµÄ ......

JavaScriptÖеÄJSON

 
JavaScriptÖеÄJSON
 
JavaScriptÊÇÎªÍø¾°ä¯ÀÀÆ÷×öÒ³Ãæ½Å±¾ÓïÑÔ¶øÊµÏÖµÄÒ»ÖÖ±à³ÌÓïÑÔ¡£ËüÏÖÔÚ»¹±»ºÜ¶àÈËÎó½âÊÇjavaµÄ×Ó¼¯¡£ËüÊÇÒ»ÖÖ¾ßÓÐÀàCÓï·¨ºÍÈõ¶ÔÏóµÄģʽÓïÑÔ¡£JavaScriptÍêÈ«×ñÊØECMAScriptÓïÑÔ˵Ã÷ÊéµÚÈý°æ¡£
JSONÊÇJavaScript¶ÔÏóÎÄ×ּǺŵÄ×Ó¼¯¡£ÓÉÓÚJSONÊÇJavaSriptµÄ×Ó¼¯£¬ËùÒÔÔÚJavaScriptÀ ......

javascriptдÀ෽ʽ֮¶þ

2¡¢Ô­ÐÍ·½Ê½
/**
* PersonÀࣺ¶¨ÒåÒ»¸öÈË£¬ÓиöÊôÐÔname£¬ºÍÒ»¸ögetName·½·¨
*/
function Person(){}
Person.prototype.name = "jack";
Person.prototype.getName = function() { return this.name;}

°ÑÀàµÄÊôÐÔ£¨×ֶΣ©£¬·½·¨¶¼¹ÒÔÚprototypeÉÏ¡£
Ô켸¸ö¶ÔÏó²âÊÔÏ£º
var p1 = new Person();
var ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ