JSFiddle - React, Tailwind, and code Playground

HTML

<div class="search">           
    <input type="text" id="fieldSearch">
    <i class="fas fa-search">Click</i>            
</div>

JavaScript

onload = (() => {
    document.getElementsByClassName("fa-search")[0].onclick = () =>{
        document.getElementById("fieldSearch").focus();
        console.log("Executou");
    }
})();