请封装一个过滤敏感词的函数 (正则表达式,[待完善])

function mg() { var a = "fuck你他妈的有病"; var arr = ['fuck', 'tmd', '他妈的']; for (var i = 0; i < arr.length; i++) { var r = new RegExp(arr[i], 'ig') a = a.replace(r, "*") } console.log(a); } mg()