Fomating decimal values JavaScript

Question

I need format a decimal number on JavaScript, my number are returning 100.000 but I want 100,00.

var val = 100.0000;
console.log(val);
// do something
console.log(val);

what I get: 100.0000
what I expected: 100,00

what I need to do for made this?

Answer 1

One possible solution:

parseFloat(val).toFixed(2).replace('.', ',');

See in action: JSFiddle

Answer 2

It depends on the need. I suggest to have a look to the formatting methods of Number.prototype.toLocaleString.

var val = 100.0000;
document.write(val.toLocaleString('de-DE', { maximumFractionDigits: 2, minimumFractionDigits: 2}));