HTML — Form Input Validation

HTML provides built-in form validation using attributes like required, min, max, maxlength, pattern, and type.

These validations help ensure correct user input before the form is submitted.

<form>
  <label>Email:</label>
  <input type=\"email\" required />
  <br />
  <label>Age:</label>
  <input type=\"number\" min=\"18\" max=\"99\" />
  <br />
  <label>Password:</label>
  <input type=\"password\" pattern=\".{6,}\" required />
  <br />
  <button type=\"submit\">Register</button>
</form>
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