how to format strings to currency form in js code example

Example 1: javascript format currency

function formatToCurrency(amount){
    return (amount).toFixed(2).replace(/\d(?=(\d{3})+\.)/g, '$&,'); 
}
formatToCurrency(12.34546); //"12.35"
formatToCurrency(42345255.356); //"42,345,255.36"

Example 2: javascript currency format

const formatter = new Intl.NumberFormat('en-ID', {
  style: 'currency',
  currency: 'IDR'
}).format(10000000)
.replace(/[IDR]/gi, '')
.replace(/(\.+\d{2})/, '')
.trimLeft()


console.log(`Rp ${formatter}`)