利用JS把字符串中的手机号码隐藏

<script>
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 = "13250203010";
 
var strresult = matchPhoneNum(str,regx);
console.log(strresult);
function matchPhoneNum(str,regx){
    var phoneNums = str.match(regx);
    for(var i= 0;i<phoneNums.length;i++){
        //手机号全部替换
                //str = str.replace(phoneNums[i],"[****]");
        var temp  = phoneNums[i]
        //隐藏手机号中间4位(例如:12300102020,隐藏后为132****2020)
        temp = temp.replace(/(\d{1})\d{9}(\d{1})/,''$1*********$2'');
        // console.log(''ok'');
        str = str.replace(phoneNums[i],temp);
    }
    return str;
};
</script>