Perfect! You understand what events are. Now let's learn how to actually detect and respond to them when they happen.
This is where your pages become truly interactive—when JavaScript listens for events and reacts by running code!
Engagement Message
What's one user action you'd like your code to react to?
To respond to an event, you need to attach an event listener to an HTML element. Think of it like posting a guard to watch for a specific action on a specific object.
The guard (the listener) waits patiently, and when the action happens, it runs the instructions you gave it.
Engagement Message
In this analogy, what does the "guard" represent?
Here's the basic syntax for adding an event listener in JavaScript:
element.addEventListener("click", someFunction);
This tells JavaScript: "On this element, listen for a click event. When it happens, run the someFunction."
Engagement Message
Which part of this code specifies what type of event to watch for?
Let's break down the addEventListener method. It takes two main arguments:
- The event type as a string (e.g.,
"click","mouseover").
