Flexible Input Mask Plugin With Pure JS – rocket-mask

rocket-mask is a simple, lightweight yet flexible input mask plugin for the regular input fields.

Features:

• Custom mask.
• Custom placeholder.
• Shows on focus.
• Hides on blur.
• Supports paste.

How to use it:

Install the rocket-mask with package managers.

# Yarn
$ yarn add rocket-mask
# NPM
$ npm install rocket-mask --save

Initialize the input mask plugin.

var formEl = document.getElementById('form');
var inputEls = formEl.querySelectorAll('input[mask]');
window.masks = [].map.call(inputEls, function (el) {
  return new Nebo15Mask.MaskedInput(el, el.getAttribute('mask'), {
    placeholder: el.getAttribute('with-placeholder'),
    showOnFocus: el.getAttribute('show-on-focus'),
    hideOnBlur: el.getAttribute('hide-on-blur'),
    showAlways: el.getAttribute('show-always'),
  });
});

Specify the format in which data can be entered into your input fields using the mask attribute.

<form id="form" action="/" method="get">
  <div>
    <label>
      <b>Credit card (base)</b>
      <input mask="1111 1111 1111 1111" name="creditCard" placeholder="XXXX XXXX XXXX XXXX"/>
    </label>
  </div>
  <div>
    <label>
      <b>Credit card (with placeholder)</b>
      <input mask="1111 1111 1111 1111" with-placeholder="_" name="creditCard" placeholder="XXXX XXXX XXXX XXXX"/>
    </label>
  </div>
  <div>
    <label>
      <b>Credit card (show on focus)</b>
      <input mask="1111 1111 1111 1111" with-placeholder="_" show-on-focus="true" name="creditCard" placeholder="XXXX XXXX XXXX XXXX"/>
    </label>
  </div>
  <div>
    <label>
      <b>Credit card (hide on blur, if empty)</b>
      <input mask="1111 1111 1111 1111" with-placeholder="_" hide-on-blur="true" name="creditCard" placeholder="XXXX XXXX XXXX XXXX"/>
    </label>
  </div>
  <div>
    <label>
      <b>Credit card (show always)</b>
      <input mask="1111 1111 1111 1111" with-placeholder="_" show-always="true" name="creditCard" placeholder="XXXX XXXX XXXX XXXX"/>
    </label>
  </div>
  <div>
    <label>
      <b>Phone number</b>
      <input mask="+38 (011) 111 11 11" name="phone" type="tel" autocomplete="tel" placeholder="+38 (0XX) XXX-XX-XX"/>
    </label>
  </div>
  <div>
    <label>
      <b>Passport</b>
      <input mask="ww 111111" name="passport" placeholder="AA 123456"/>
    </label>
  </div>
  <button type="submit">Submit</button>
</form>