JSFiddle - React, Tailwind, and code Playground
HTML
<div class="touche 1">
<h1>1</h1>
</div>
<div class="touche 2">
<h1>2</h1>
</div>
<div class="touche 3">
<h1>3</h1>
</div>
JavaScript
var controls = document.getElementsByClassName("touche");
for(var i = 0;i<controls.length;i++)
{
controls[i].onclick = function() {
console.log(this.childNodes[1].innerText);
alert(this.childNodes[1].innerText);
};
}