Check Password Strength.

isPasswordStrong.js

const strongPassword = new RegExp(
  '^(?=.*[a-z])(?=.*[A-Z])(?=.*[0-9])(?=.*[!@#$%^&*])(?=.{8,})'
);

const mediumPassword = new RegExp(
  '^(((?=.*[a-z])(?=.*[A-Z]))|((?=.*[a-z])(?=.*[0-9]))|((?=.*[A-Z])(?=.*[0-9])))(?=.{6,})'
);

export const isPasswordStrong = (value = ''): boolean => {
  if (strongPassword.test(value)) {
    return true;
  }

  return false;
};