javascript»ñÈ¡iframeÎĵµÄÚÈÝ(¼æÈÝIEºÍFirefox)
ÔÚÍøÉÏÕÒµ½ÔÚIEϲÙ×÷IFrameÄÚÈݵĴúÂë:
document.frames["MyIFrame"].document.getElementById("s").style.color="blue";
µ«ÊÇÕâÔÚFirefoxÏÂÎÞЧ¡£
ËùÒÔ£¬Ïëµ½ÔÚFirefoxÏÂÓÃFireBugÀ´µ÷ÊÔ¡£¾¹ýµ÷ÊÔ·¢ÏÖÔÚFirefoxÏ¿ÉÓÃÒÔÏ´úÂëÀ´ÊµÏÖ:
document.getElementById("MyIFrame").contentDocument.getElementById("s").style.color="blue";
Ïêϸ´úÂëÈçÏÂ:
TestIFrame.htm:
<html>
<head>
<script type="text/javascript">
function f(){
var doc;
if (document.all){//IE
doc = document.frames["MyIFrame"].document;
}else{//Firefox
doc = document.getElementById("MyIFrame").contentDocument;
}
doc.getElementById("s").style.color="blue";
}
</script>
</head>
<body onload="f()">
<iframe id = "MyIFrame" name = "MyIFrame" src = "MyIFrame.htm" width = "100" height="100">
</body>
</html>
MyIFrame.htm:
Ïà¹ØÎĵµ£º
ÿ´ÎÓõÄʱºò¶¼ÒªÕÒÒ»±é×ÊÁÏ£¬×ÁÄ¥Ò»±éÓï·¨£¬²»Ê¤Æä·³£¬ÖÕÓÚ϶¨¾öÐİÑËûÃǶ¼¼ÇÏÂÀ´£¬Ò»´ÎÐԸ㶨£¬ÓÀ¾øºó»¼£¡:)
Ò»¡¢Ê²Ã´ÊÇÕýÔò±í´ïʽ£¿
¼òµ¥µØËµ£¬¾ÍÊÇ»ùÓÚ×Ö·û´®µÄģʽƥÅ乤¾ß¡£Êµ¼ÊÓ¦ÓÃÖаüÀ¨×Ö·û´®µÄ²éÕÒ¡¢ÌáÈ¡¡¢Ìæ»»µÈµÈ¡£
¶þ¡¢»ù±¾Óï·¨
JavascriptÖеÄÕýÔò±í´ïʽµÄÐÎʽһ ......
javascriptÖÐreplace()
ÔÚjavascriptÖУ¬StringµÄº¯Êýreplace()¼òֱ̫ÈÃÈËϲ°®ÁË¡£ËüÁé»î¶øÇ¿´óµÄ×Ö·ûÌæ»»´¦ÀíÄÜÁ¦£¬ÈÃÎÒ²»½ûÏëÏò´ó¼Ò½éÉÜËü¡£
¡¡¡¡replace()×î¼òµ¥µÄËãÊÇÄÜÁ¦¾ÍÊǼòµ¥µÄ×Ö·ûÌæ»»¡£Ê¾Àý´úÂëÈçÏ£º
<script language="javascript">
var strM = "javascript is a good script ......
[ 2007-8-6 17:03:00 | By: ibrahim ]
javascript²Ù×÷Select±ê¼ÇÖÐoptions¼¯ºÏ
ÏÈÀ´¿´¿´options¼¯ºÏµÄÕ⼸¸ö·½·¨£º
options.add(option)·½·¨Ïò¼¯ºÏÀïÌí¼ÓÒ»Ïîoption¶ÔÏó£»
options.remove(index)·½·¨ÒƳýoptions¼¯ºÏÖеÄÖ¸¶¨Ï
options(index)»òoptions.item(index)¿ÉÒÔͨ¹ýË÷Òý»ñÈ¡options¼¯º ......
Èç¹ûÄãÏë½øÒ»²½Á˽âÈçºÎÓÃJavaScriptÀ´ÎªÍøÒ³Ìí¼Ó½»»¥ÐԵϰ£¬ÄãÒ²ÐíÒѾÌý¹ýJavaScriptµÄʼþ´úÀí£¨event delegation£©ÁË£¬²¢ÇÒ»á¾õµÃÖ»ÓÐÄÇЩţ±ÆºæºæµÄJavaScript³ÌÐòÔ±²Å»á¹ØÐÄÕâÑù¸´ÔÓµÄÉè¼ÆÄ£Ê½¡£ÊÂʵÉÏ£¬Èç¹ûÄãÒѾ֪µÀÔõôÑùÈ¥Ìí¼ÓJavaScriptµÄʼþ´¦ÀíÆ÷£¨event handler£©£¬ÊµÏÖʼþ´úÀíÒ²ÊǼþÇá¶øÒ×¾ÙµÄÊÂÇé¡£
J ......
"These memory leaks often
occur as a result of circular references between JavaScript objects and
objects within IE’s DOM (document object model)."
GPDE Team Blog
Ã÷ÏÔµÄDOM¶ÔÏóÓë JavaScript¶ÔÏóÑ»·ÒýÓúܺÃÅжϣ¬ÄѵÄÊÇÒþº¬µÄÑ»·ÒýÓÃÅжϣ¡
Òþº¬µÄÑ»·ÒýÓÃÐèҪͨ¹ý×÷ÓÃÓòÁ´½øÐзÖÎöÅÐ ......