Docs Installation Playground Explore AST

Set on System Basis

Event Listeners in BroCode

Event listeners let you add interactivity to your webpage. Whether it’s a button click, mouse hover, or any other user interaction, BroCode makes it super easy to handle. Let’s go through how to add and remove event listeners with just a few commands.


Quick Reference 🛠️

Add an Event Listener

When you want to listen for an event like a click, BroCode has your back. Just tell it where and when to listen!

BROCODE
bro <element> pe sun("<event>", <function()>);

This listens for the "event" on "element" and triggers the "function()" when it happens. Replace "event" with click, mouseover, etc., and "function()" with the desired action. Remember to add () after the function name.

Remove an Event Listener

Need to stop listening for an event? It’s like putting the mute button on the event. Here’s how you can do it.

BROCODE
bro <element> pe sunna bnd kr("<event>", <function()>);

This removes the event listener from the specified "element", making sure it doesn’t react to the "event" anymore. Handy for cleanup!

Practical Examples 💻

1Adding a Click Event

Let’s add a click event to a button and log a message when it’s clicked.

BROCODE
bro myButton pe sun("click", handleClick());
This listens for a click event on the "myButton" and calls the "handleClick()" function when clicked. You can replace "handleClick()" with any function that you want to run when the button is clicked

2Removing the Click Event

Want to remove the event listener? Here’s how you can stop listening for the click event.

BROCODE
bro myButton pe sunna bnd kr("click", handleClick());
This stops listening for the click event on "myButton" and disables the "handleClick()" function from being triggered on clicks.

Best Practices

Some useful tips when working with event listeners in BroCode.

🎯 Always make sure to remove event listeners when they’re no longer needed to avoid memory leaks.🎯 Use named functions for event listeners rather than anonymous functions to ensure you can easily remove them later.🎯 Be specific about the event type (click, keyup, etc.) to avoid unnecessary processing.

BroCode © 2024. All rights reserved.