mask-price.js

export const maskPrice = price => {
  
  const scrubValue = price => {
    const removedDecimal = value.replace(/\./g, "");
    
    const onlyDigits = new RegExp(/^(\d)+$/);
    if (!onlyDigits.test(removedDecimal)) return;
    
    const removedDecimalArray = removedDecimal.split("");
    removedDecimalArray.splice(-2, 0, ".");
    
    return removedDecimalArray.join("");
  };

  const scrubbedValue = scrubValue(price);

  const formatValue = value => price.toFixed(2);

  return formatValue(scrubbedValue);
};