Format value to pattern

formatToPattern.ts

const formatToPattern = (value: string, pattern: string): string => {
  const maskLength = [...pattern.matchAll(/#/g)].length
  if (maskLength !== value.length) return value

  let i = 0
  return pattern.replace(/#/g, () => value[i++])
}

console.log(formatToPattern('99999999999', '(##) #####-####')) // (99) 99999-9999
console.log(formatToPattern('12345678989', '###.###.###-##')) // 123.456.789-89