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

Quick solution:

call it like this:

console.log(localeN(value, 4));

function localeN(v, n) {
    var i, f;
  
    i = Math.floor(v);
    f = v - i;
    return i.toLocaleString() + f.toFixed(n).substr(1);
}