split string in two on given index and return both parts

Question

I have a string that I need to split on a given index and then return both parts, seperated by a comma. For example:

string: 8211 = 8,211
        98700 = 98,         


        

Answer 1

You can also do it like this.
https://jsfiddle.net/Devashish2910/8hbosLj3/1/#&togetherjs=iugeGcColp

var str, result;
str = prompt("Enter Any Number");

var valueSplit = function (value, length) {
    if (length < 7) {
        var index = length - 3;
        return str.slice(0, index) + ',' + str.slice(index);
    }
    else if (length < 10 && length > 6) {
        var index1, index2;
        index1 = length - 6;
        index2 = length - 3;
        return str.slice(0,index1) + "," + str.slice(index1,index2) + "," + str.slice(index2);
    }
}

result = valueSplit(str, str.length);
alert(result);