DOM/eventTypes.html

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Event Types</title>
    <style>
      body {
        display: flex;
        flex-direction: column;
        gap: 10px;
        align-items: center;
      }
      div {
        width: 200px;
        height: 100px;
        background-color: yellowgreen;
        text-align: center;
        line-height: 100px;
      }

      div:nth-child(2) {
        background-color: coral;
      }
      div:nth-child(3) {
        background-color: burlywood;
      }
      div:nth-child(4) {
        background-color: cadetblue;
      }
      a {
        color: whitesmoke;
        font-size: 20px;
        text-decoration: none;
      }
    </style>
  </head>
  <body>
    <div>
      <a href="#" onclick="alert('Kill me heal me')">Inline Alert</a>
    </div>
    <div>
      <a href="#" onclick="callMe()">Calling a function</a>
    </div>
    <div>
      <a id="eventCaller" href="#""
        >Inline Event</a
      >
    </div>
    <div>
      <a class="alink" href="#" 
        >addEventListener</a
      >
    </div>

    <script>
      //calling via function
      const callMe = () => {
        alert("One missed call");
      };

      // inline event
      const call3 = document.querySelector("#eventCaller");
      call3.onclick = function () {
        alert("Fly High and Sky High");
      };

      //addEventListener
      const listener = document.querySelector(".alink");

      const callMe2 = () => {
        alert("The Joker");
      };

      listener.addEventListener("click", callMe2);
    </script>
  </body>
</html>