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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 " + (end-start));
}
</script>
</head>
<body>
<pre>
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 " + (end-start));
</pre>
</body>
</html>
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String.prototype.times = function(n) {//IE6 570~600 FF3 320~430 chrome 550~900 IE8 422~490
return Array.prototype.join.call({length:n+1}, this);
};
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