JSFiddle - React, Tailwind, and code Playground

by luka kupunia

HTML

<form action="">
    <input type="text" id="first">
    <input type="text" id="second">
    <button type="submit" id="submitBtn">submit</button>
</form>

JavaScript

var a = document.querySelector('#submitBtn');

a.addEventListener('click',function(e){
	if(document.querySelector('#first').value == ''){
        e.preventDefault()
    }
    console.log(this.parentNode.querySelector('input'))
})