Help me in solving JS35 problem

help
,
1

My issue

Not understanding the mistake

My code

var textElement = document.getElementById("text");

var button = document.getElementById("button");

button.addEventListener("click", () => {
    textElement.style.textDecoration = 'line-through';
});

Learning course: Web development using JavaScript
Problem Link: Modifying CSS Based on User Input in Web development using JavaScript