JavaScript Captcha

Simple captcha module written in pure JavaScript with no dependencies

Install

npm install jcaptcha

Usage

Just include required JavaScript:

<script src="jCaptcha.js"></script>

Initialize it:

<script>
    var myCaptcha = new jCaptcha();
</script>

Call validate() method when required (e.g. on submit event):

<script>
    myCaptcha.validate();
</script>

No styling included, just style it as you wish :)

Options

jCaptcha can take an optional parameters - an object of key/value settings:

• el String (default:jCaptcha) - css class for input element
• requiredValue String (default:*) - required filed indicator
• resetOnError Boolean (default:) - render new random numbers on error validate
• focusOnError Boolean (default:) - focus input field on error validate
• clearOnSubmit Boolean (default:) - clear input value on every validate
• callback Object (default:null) - as invoked function these useful arguments are returned: response and captcha input node

API

reset() - generate new random numbers

validate() - validate entered result in input field

Demo

Demo available here.

License

js-captcha is licensed under the MIT license.