JS匹配并且隐藏字符串中的电话号

使用正则表达式匹配出所有的符合的字符串，并替换为[**]

var regx = /(1[3|4|5|7|8][\d]{9}|0[\d]{2,3}-[\d]{7,8}|400[-]?[\d]{3}[-]?[\d]{4})/g; 
var str = "ka13213213211323213213213213213213213213213213213212ndsajkjksad113200102222sdas13500000000adsadsadsa";

var strresult = matchPhoneNum(str,regx);
console.log(strresult);
function matchPhoneNum(str,regx){
    var phoneNums = str.match(regx);
    for(var i= 0;i