<button>1</button>

<button>2</button>

<button>3</button>

<script>

   document.body.addEventListener("click", event => {

      if (event.target.nodeName == "BUTTON") {

           console.log("This button was clicked", event.target.textContent);

      }

   });

​

</script>

​

//ouput for clicking button 1: This button was clicked 1

//ouput for clicking button 2: This button was clicked 2

//ouput for clicking button 3: This button was clicked 3