jQuery Konami Code Listener

jQuery code snippet that listens for entry of a Japanese Konami code and then performs your desired action.


if ( window.addEventListener ) {
    var kkeys = [], konami = "38,38,40,40,37,39,37,39,66,65";
    window.addEventListener("keydown", function(e){
        kkeys.push( e.keyCode );
        if ( kkeys.toString().indexOf( konami ) >= 0 )
            // User entered Konami Code, do something cool!!!
            kkeys = [];
    }, true);
}

More info on Konami plugins here: http://plugins.jquery.com/project/konamiCode

Frequently Asked Questions (FAQs) about jQuery Konami Code Listener

How can I implement the jQuery Konami Code Listener on my website?

Implementing the jQuery Konami Code Listener on your website is a straightforward process. First, you need to include the jQuery library in your HTML file. After that, you can include the Konami Code Listener script. This script listens for the specific sequence of keypresses that make up the Konami Code. Once the correct sequence is entered, the script triggers a function of your choice. This could be anything from displaying a hidden message to activating a special feature on your website.

What is the Konami Code and why is it used?

The Konami Code is a sequence of keypresses that was originally used as a cheat code in Konami video games. It has since become a popular easter egg in various digital media, including websites. When a user enters the Konami Code on a website, it can trigger a hidden feature or message.

Can I customize the function that is triggered by the Konami Code?

Yes, you can customize the function that is triggered by the Konami Code. This is done by modifying the script that listens for the Konami Code. You can replace the existing function with one of your own. This allows you to create a unique experience for users who discover and enter the Konami Code on your website.

Is the jQuery Konami Code Listener compatible with all browsers?

The jQuery Konami Code Listener is compatible with all modern browsers that support jQuery. This includes Chrome, Firefox, Safari, and Edge. However, it may not work correctly on older browsers that do not fully support jQuery.

Can I use the jQuery Konami Code Listener on a mobile website?

The jQuery Konami Code Listener is primarily designed for use on desktop websites, as it relies on keypresses to activate. However, with some modifications, it can be adapted for use on mobile websites. This would involve changing the activation method from keypresses to touch gestures.

How can I test the jQuery Konami Code Listener on my website?

You can test the jQuery Konami Code Listener on your website by entering the Konami Code. If the listener is working correctly, it should trigger the function that you have specified.

Can I use the jQuery Konami Code Listener without any knowledge of JavaScript?

While the jQuery Konami Code Listener is written in JavaScript, you do not need to be an expert in JavaScript to use it. The script is designed to be easy to implement and customize, even for those with only a basic understanding of JavaScript.

Is the jQuery Konami Code Listener free to use?

Yes, the jQuery Konami Code Listener is free to use. It is an open-source script, which means that you can use it and modify it as you wish without any cost.

Can I use the jQuery Konami Code Listener in a commercial project?

Yes, you can use the jQuery Konami Code Listener in a commercial project. As an open-source script, there are no restrictions on its use.

Where can I find more information about the jQuery Konami Code Listener?

You can find more information about the jQuery Konami Code Listener on the SitePoint website. This includes a detailed guide on how to implement and customize the script, as well as examples of its use.