Display comma separated Number using locale string

Question

I need to display the numbers with comma separated like 120,456.02

I tried the below method using js and it worked fine. But in apps scripts, it throws illegal radix exception

function toDec(n) {
    //return parseFloat(Math.round(n * 100) / 100).toFixed(2) + ' '; will display without comma
    return Number(parseFloat(Math.round(n * 100) / 100)).toLocaleString('en-US', {minimumFractionDigits: 2});
}

Any workaround available?

Answer 1

In GAS toLocaleString is just an alias for toString, and is therefore useless. (Relevant bug tracker item from Rhino, on which GAS runs.)

So, we have to do some manual comma insertion following Add commas or spaces to group every three digits:

var n = 123456.789;
var str = n.toFixed(2).replace(/(\d)(?=(\d{3})+\.)/g, '$1,');

where str is now 123,456.79.