toLocaleString(locales, options) code example

Example 1: toLocalString

Data.prototype.toLocaleString()

Example 2: tolocalestring javascript currency fixing 2 decimal places

var num = 2046430.123;
num.toLocaleString(undefined, {
  minimumFractionDigits: 2,
  maximumFractionDigits: 2
}) // 2,046,430.12