JSFiddle - React, Tailwind, and code Playground

HTML

<ul id="new-ul">
     <li> <input value="323" /> </li>
     <li> <input value="421" /> </li>
     <li> <input value="547" /> </li>
</ul>

JavaScript

Array.prototype.map.call( document.querySelectorAll("#new-ul input"), function( element,index ){

    console.log( element.value );

});