js替换功能函数，用正则表达式解决，js的全部替换_javascript技巧

另附：带有特殊符号的全局替换
代码如下:









String.prototype.replaceAll = stringReplaceAll;
function stringReplaceAll(AFindText,ARepText){
var raRegExp = new RegExp(AFindText.replace(/([\(\)\[\]\{\}\^\$\+\-\*\?\.\"\'\|\/\\])/g,"\\$1"),"ig");
return this.replace(raRegExp,ARepText);
}
function myreplace(){
var content=document.getElementById("content").value;
var rel_con=content.replaceAll("$name","wwww");
document.getElementById("content2").value=rel_con;
}



onclick="myreplace()"/>