Custom rules

Add synchronous or asynchronous validators. Custom rules integrate seamlessly with built-ins.

Password

Does not contain 'admin' or 'user' — checking

Snippet

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const customRule: CustomRule = {
  id: "no-username",
  label: "Does not contain 'admin' or 'user'",
  validate: (password) => !/(admin|user)/i.test(password),
};

<PasswordChecklist
  value={password}
  customRules={[customRule]}
/>