tektuitive

export function validateEmail(email) {
  if (!/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test(email)) {
    return 'Enter a valid email address!';
  } else return null;
}

export function validatePassword(password) {
  if (
    !/(?=(.*[0-9]))((?=.*[A-Za-z0-9])(?=.*[A-Z])(?=.*[a-z]))^.{8,}$/i.test(
      password,

mrousavy

In computing, memoization or memoisation
is an optimization technique used primarily
to speed up computer programs by storing
the results of expensive function calls and  
returning the cached result when the same
inputs occur again.                                         
                                                     — wikipedia