Form validations made easy.

Usage no npm install needed!

<script type="module">
  import validate5 from '';



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Form validations made easy.


:cloud: Installation

Check out the dist directory to download the needed files and include them on your page.

If you're using this module in a CommonJS environment, you can install it using npm or yarn and require it:

# Using npm
npm install --save validate5

# Using yarn
yarn add validate5

:clipboard: Example

 * Having the following HTML markup
 * <form action="#" method="get" accept-charset="UTF-8" style="margin-left:6px;">
 *     <div class="container">
 *         <input type="text" name="name" placeholder="Your Name" autofocus required/><br/>
 *     </div>
 *     <div class="container">
 *         <input type="email" name="email" placeholder="Your Email" required/><br/>
 *     </div>
 *     <div class="container">
 *         <input type="text" name="text" title="Invalid ZIP code." pattern="\d{5}-?(\d{4})?" placeholder="ZIP (5 numbers)" required/><br/>
 *     </div>
 *     <div class="container">
 *         <input type="submit" value="Submit" />
 *     </div>
 * </form>

// To validate the forms on submit, use:

:question: Get Help

There are few ways to get help:

  1. Please post questions on Stack Overflow. You can open issues with questions, as long you add a link to your Stack Overflow question.
  2. For bug reports and feature requests, open issues. :bug:
  3. For direct and quick help, you can use Codementor. :rocket:

:memo: Documentation


Handles the submit event on the selected forms.

You may want to extend the validate5.patterns object with custom types. By default it has validation for:

  • email: [emailRegex, "Invalid email address"]

e.g. validate5.patterns.myCustomType = [/^[0-9]+$/g, "Not a number."]

Use the validate5.skips array to handle elements that should be skipped when validating. By default it skips the type=submit inputs.


validate5.skips.push(function (c) {
  if (c.getattribute("data-ignore-validation")) { return true; }


  • String forms: The form(s) selector you want to automagically validate on submit.


Validates an input element.


  • HTMLElement input: The input to validate.


inputs(formElm, cb)

Iterate the inputs in the provided form.


  • HTMLElement formElm: The form element.
  • Function cb: The callback function.


  • Array The array of inputs.


Validates the form element.


  • HTMLElement formElm: The form element.


  • Array An array of errors.


Validates the form and displays the errors.


  • HTMLElement formElm: The <form> element to validate.


  • Array|Boolean An array of errors or false if all the fields are valid.

:yum: How to contribute

Have an idea? Found a bug? See how to contribute.

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:scroll: License

MIT © Ionică Bizău