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function loadscript(url) {
document.write('<scr' + 'ipt type="text/javascript" src"' + url + '"><\/scr' + 'ipt>'>)
}
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function
matchDemo(){
var s;
var re = new RegExp("d(b+)(d)","ig");
var str = "cdbBdbsbdbdz";
var arr = re.exec(str);
s = "$1
contains: " + RegExp.$1 + "\n";
s += "$2 contains: " + RegExp.$2 +
"\n";
s += "$3 contains: " + RegExp.$3;
return(s);
}
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Summary ×ܽá
When web pages or applications begin to feel slow, analyzing assets as they come over the wire and profiling scripts while they are running allows you to focus your optimization efforts where they are needed most.
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<script>
//¼ì²éÊÇ·ñΪÈÎÒâÊý£¨ÊµÊý£©
function isNumeric(strNumber) {
var newPar=/^(-|\+)?\d+(\.\d+)?$/
alert(newPar.test(strNumber)); }
//¼ ......
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﹤scriptlanguage=”javascript”﹥
/**
*ɾ³ý×óÓÒÁ½¶ËµÄ¿Õ¸ñ
*/
String.prototype.trim=function(){
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1 history.go(0)
2 location.reload() £¨Ò³Ãæ½øÐÐˢУ¬µ«ÎªdisabledµÄÔªËØµÄÖµ²»»á±»Çå¿Õ£©
3 location=location
4 location.assign(location)
5 location.replace(location)
6 from..reset() (Ò³Ãæ²»½øÐÐˢУ¬Ä£Äâµ¥»÷¶ÔËùµ÷ÓÃ±íµ¥ÖØÖð´Å¥µÄµ¥»÷)
......
<html>
<body>
<mce:script type="text/javascript"><!--
document.write("<table border=1px>");
for(i=1;i<=9;i++)
{document.write("<tr>");
for (j=1;j<=i;j++)
{document.write("<td class='table1'>"+i+"*"+j+"="+i*j+" & ......