JAVASCRIPT

javascript child element selector

// given html
    <div class="parent">
        <div class="child1">
            <div class="child2">
            </div>
        </div>
    </div>
    
// Get parent
let parent = document.querySelector('.parent'); 
// child element selector
parent.querySelector('.child')

select child element javascript

/*
<div id="parent">
	<input value="off" />
    <button type="button">Click Me</button>
</div>
*/

const input = document.querySelector('#parent input');
const button = document.querySelecctor('#parent button');