Separate thousands, used for prices

thousandSeparator.ts

const priceUtility = (pr: string | number): string => {
  // remove spaces
  const price: string = pr.toString().replaceAll(' ', '');
  // get hole part
  const holePart: number = parseInt(price);
  // get float part of price if exist
  const floatPart: string =
    parseFloat(price) - holePart === 0
      ? ''
      : (parseFloat(price) - holePart).toFixed(2).substring(1);

  let result = '';
  let counter = 0;
  let stringPrice: string = holePart.toString();

  for (let i = stringPrice.length - 1; i >= 0; i--) {
    if (counter === 3) {
      // add space in front of thousand
      result = ' ' + result;
      counter = 0;
    }
    counter++;

    result = stringPrice[i] + result;
  }

  return result + floatPart;
};

priceUtility('55990.99'); // '55 990.99'