Скачать или смотреть How to Create a Custom Form Validator with JavaScript

Link to SOURCE CODE:
https://codepen.io/dcode-software/pen...

In today's video I'll show you how to build a custom form validator using vanilla JavaScript - no frameworks or libraries required!'

This will let you define your own custom rules for validation - whether it's limits on text length, alphanumeric characters or whatever you want really. This makes it perfect to integrating it into existing websites or web projects (sign up forms, registration forms etc.)

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