JSFiddle - React, Tailwind, and code Playground

by Brunno Romero

HTML

<select name="valorA" id="valorA" size="3" multiple>
    <option value="Gezer">Gezer</option>
    <option value="João" selected>João</option>
    <option value="Marcos">Marcos</option>
</select>

<button type="button" id="btn">passar valores</button>Nome:
<textarea id="nome" size="10"></textarea>

JavaScript

var btn = document.getElementById('btn');
btn.addEventListener('click', passar);

function passar() {
    var valorA = document.getElementById("valorA");
    var nome = document.getElementById("nome");
    
    nome.value += (valorA.value + '\n');
};