Javascript去掉字符串前后空格

Javascript去掉字符串前后空格

function String.prototype.trim(){

return this.toString().replace(/^\s+|\s+$/g,"");

}

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<script language=Javascript>

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 = " Trim ";

alert(str.Trim());

</script>

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返回去掉字符串前后逗号的值

onblur='this.value=this.value.toString().replace(/(^\,*)|(\,*$)/g,"")'