Content scripts  |  Chrome Extensions  |  Chrome for Developers

PHOTO EMBED

Wed Jul 09 2025 10:30:25 GMT+0000 (Coordinated Universal Time)

Saved by @Shookthadev999 

<html>
  <button id="mybutton">click me</button>
  <script>
    var greeting = "hello, ";
    var button = document.getElementById("mybutton");
    button.person_name = "Bob";
    button.addEventListener(
        "click", () => alert(greeting + button.person_name + "."), false);
  </script>
</html>
content_copyCOPY

https://developer.chrome.com/docs/extensions/develop/concepts/content-scripts