/**
 * Constant-time string comparison
 * @param a
 * @param b
 */
export function timingSafeEqual(a: string, b: string): boolean {
  const strA = String(a)
  let strB = String(b)
  const lenA = strA.length
  let result = 0

  if (lenA !== strB.length) {
    strB = strA
    result = 1
  }

  for (let i = 0; i < lenA; i++) {
    result |= strA.charCodeAt(i) ^ strB.charCodeAt(i)
  }

  return result === 0
}