const toString = Object.prototype.toString

export function is(val: unknown, type: string) {
  return toString.call(val) === `[object ${type}]`
}

export function isString(val: unknown): val is string {
  return is(val, 'String')
}

export function isRegExp(val: unknown): val is RegExp {
  return is(val, 'RegExp')
}