JSFiddle - React, Tailwind, and code Playground

by Brunno Romero

HTML

<input type="text" name="qnt" id="qnt" />
<input type="button" value="Salvar" id="btn" />

JavaScript

(function() {

    var btnElement = document.getElementById('btn');
    var qtdElement = document.getElementById('qnt');
    
    btnElement.addEventListener('click', function(){
        alert('Foi setado o valor: ' + qtdElement.value);
    	sessionStorage.setItem('qtdMb', qtdElement.value);
    });
    
})();