Javascript number.toLocaleString currency without currency sign

Here how I solved this issue. When I want to format currency without any signs, I format it with the currency code and then just remove 3-chars code from the result.

export function getCurrencyFormatWithSymbol(currencyCode) {  return {    style: 'currency',    currency: currencyCode,    currencyDisplay: 'symbol',  }}export function getCurrencyFormatWithIsoCode(currencyCode) {  return {    style: 'currency',    currency: currencyCode,    currencyDisplay: 'code',  }}export function getCurrencyFormatWithLocalName(currencyCode) {  return {    style: 'currency',    currency: currencyCode,    currencyDisplay: 'name',  }}export function getCurrencyFormatNumbersOnly(currencyCode) {  return {    style: 'currency',    currency: currencyCode,    currencyDisplay: 'none',  }}export function formatCurrency (value, format, lang) {  const stripSymbols = (format.currencyDisplay === 'none')  const localFormat = stripSymbols ? {...format, currencyDisplay: 'code'} : format  let result = Intl.NumberFormat(lang, localFormat).format(value)  if (stripSymbols) {    result = result.replace(/[a-z]{3}/i, "").trim()  }  return result}

Usage:

const format = getCurrencyFormatNumbersOnly('JPY')formatCurrency(12345, format, 'ja')formatCurrency(123456, format, 'ja')formatCurrency(1234567, format, 'ja')formatCurrency(12345678, format, 'ja')

Edit: The only minus, in this case, is the speed. On simple tasks, it will work perfectly. But if you are going to format a lot of numbers (for example, if you are fetching financial reports with raw data from backend and then format numbers according to user settings) this function can slow down your algorithms significantly and become a bottleneck on some browsers. So, test it carefully before using in production.

There is no way to pass parameter to toLocaleString and remove currency symbol. so use this function instead.

var convertedNumber = num.toLocaleString('de-DE', { minimumFractionDigits: 2 });

Here is a solution that isn't using regex and will deal with any locale, properly.

It uses the currency formatter of the locale and iterates all parts of it to exclude the literal and currency, properly, resulting in only getting the number as string. (Btw, the literal is the space between number and currency symbol).

const value = new Intl.NumberFormat('de-DE', {    style: 'currency',    currency: 'EUR',}).formatToParts(12345.678).map(    p => p.type != 'literal' && p.type != 'currency' ? p.value : '').join('')console.log(value) // prints 12.345,68