<!DOCTYPE html>
<html>
<body>
<p>Cliquez sur le bouton et ajoutez un nouvel élément au tableau.</p>
<button onclick="myFunction()">Cliquez</button>
<p id="demo"></p>
<script>
var colors = ["Orange", "Red", "Blue"];
document.getElementById("demo").innerHTML = colors;
function myFunction() {
colors.push("Green");
document.getElementById("demo").innerHTML = colors;
}
</script>
</body>
</html>