JavaScript Number.toLocaleString() with 4 digits after separator

Question

Is there a way to get number.toLocaleString() with 4 digits after the comma?

Example:

var number = 49.9712;
document.getElementById(\'id         


        

Answer 1

You cannot do this with toLocaleString() alone. But you can round to 4 decimal places before displaying:

var n = Math.round(number * 10000) / 10000;
document.getElementById('id').innerText = n.toLocaleString();