JSFiddle - React, Tailwind, and code Playground

by Alexis López Espinoza

HTML

<textarea name = "texto"></textarea>
<button id = "ejemplo">Asignar</button>

CSS

button{
    display: block;
}

JavaScript

var boton = document.getElementById("ejemplo"),
    textarea = document.getElementsByName("texto")[0],
    asignar = function(){
        textarea.value = "Hola mundo";
        return;
    };

boton.addEventListener("click", asignar, false);