借花<script language=Javascript>
String.prototype.Trim=function(){return this.replace(/(^\s*)|(\s*$)/g,"");}var str = " abc de ";
alert(str.Trim());
</script>
String.prototype.Trim=function(){return this.replace(/(^\s*)|(\s*$)/g,"");}var str = " abc de ";
alert(str.Trim());
</script>
{
if(this==null || this=="")
return ""
return this.replace(/(^\s*)|(\s*$)/g, "");
}
alert(" dd".trim());
<script language=Javascript> //自己动手为string添加Trim
function String.prototype.Trim() {return this.replace(/(^\s*)|(\s*$)/g,"");}
function String.prototype.Ltrim(){return this.replace(/(^\s*)/g, "");}
function String.prototype.Rtrim(){return this.replace(/(\s*$)/g, "");}
var str = " meizz ";
alert(str.Trim());
*表示0个或者1个以上的匹配,0个匹配的时候没必要replace吧?
<input onblur="f=value;execScript('f=LTrim(f)','vbscript');value=f">
<input onblur="f=value;execScript('f=RTrim(f)','vbscript');value=f">