Check which button is clicked using for loop in javascript

<button class="button">button 1</button> <button class="button">button 2</button> <button class="button">button 3</button> <button class="button">button 4</button> <button class="button">button 5</button> <button class="button">button 6</button> <script> let buttonList = document.querySelectorAll(".button"); for (let i = 0; i < buttonList.length; ++i){ buttonList[i].addEventListener("click", function() { alert(this.innerHTML +" is clicked"); }); } </script>