TameJS from the creators of OkCupid, is an extension to JavaScript, written in JavaScript, that makes event programming easier to write, read, and edit. Tame is very easy to use in Node and other V8 projects. And it can be dropped into projects where desired – no need to rewrite any existing code.

They have written hundreds of thousands of lines of purely async code at OkCupid, and their code has stayed manageable, even after 8 years of development. Note Tame is not an attempt to dumb down async programming. It’s just a cleaner way to write it. Further, your programs will likely have lower latency; with Tame it’s a lot easier to keep parallel calls parallel.

Published under: Framework | MIT License

Kilian Valkhof came across a website that had a whole slew of JavaScript that attempted to prevent you from selecting text, right clicking or dragging any content onto your desktop.

So he decided to copy the JavaScript and create a library with examples of JavaScript techniques you can use if you want to scare your visitors away, or want to piss them off. Annoying.js is the result.

As you can see, you can do some pretty bad things with Annoying.js that will certainly drive your visitors away. However, some functions is actually very useful if you’re writing complex “html5″ web applications. By disabling text-selection on interface elements you can make the application easier to use, and you can re-implement the right click menu using your own options.

 

Published under: Utilities | MIT License

Leaflet is a modern, lightweight BSD-licensed JavaScript library for making tile-based interactive maps for both desktop and mobile web browsers. It is built from the ground up to work efficiently and smoothly on both platforms, utilizing cutting-edge technologies included in HTML5.

Its top priorities are usability, performance, small size, A-grade browser support, flexibility and easy to use API. The OOP-based code of the library is designed to be modular, extensible and very easy to understand.

Published under: Maps | BSD License

NowJS is a NodeJS module. The client javascript (now.js) is served by the NowJS server. NowJS creates a magic namespace “now”, accessible by server and client. Functions and variables added to now are automatically synced, in real-time.

You can call easily client functions from the server and server functions from the client. That means you can push to the client simply by calling a client-side Javascript function on the server. Communication is achieved using Socket.io

NowJS v0.2 is supported in Chrome, Opera, Safari, Firefox, and IE9. Support for older version of IE is coming.

Published under: Framework | License Free

Formly allows an unbelievably easy way to add style and validation to your forms. Forms are everywhere and, usually, suck. Formly makes adding forms to your site a bit more exciting. Easily add style, validation, and a more impressive user interaction with a single function.

Formly is a light little fella. 17kb in total for the full and 14kb for the minified version. It has been tested on iPhone/iPad, Chrome 8.0+, Firefox 3.0+, Safari 4.0+, Internet Explorer 7.0+.

Published under: Validation | Forms | MIT License

DepthJS allows any web page to interact with the Microsoft Kinect using Javascript. Navigating the web is only one application of the framework they built – that is, they envision all sorts of applications that run in the browser, from games to specific utilities for specific sites.

The great part is that now web developers who specialize in Javascript can work with the Kinect without having to learn any special languages or code. DepthJS is open source under the AGPL license.

Published under: Framework | GPL License

Livefyre is a real-time engagement platform focused on building a community around the content of your website. It replaces your outdated comment section with a live stream of comments, images, videos, tweets, and Facebook posts.

Livefyre is built from the ground up for the social web, focused on bringing the conversation back to your content and giving your community the most quality online conversation experience possible, with the people, communities, and topics that they care about the most.

Best of all, Livefyre is free for websites with less than 20M monthly pageviews. Please feel free to try it out yourself.

Livefyre - Real-time Comments Built For the Social Web

Published under: Utilities

How much library code do you really need – 50K? 100K? 150K? More? How much of that do you really use?

Micro-frameworks are definitely the pocketknives of the JavaScript library world: short, sweet, to the point. And at 5k and under, micro-frameworks are very very portable. A micro-framework does one thing and one thing only – and does it well. No cruft, no featuritis, no feature creep, no excess anywhere.

Microjs.com helps you discover the most compact-but-powerful microframeworks, and makes it easy for you to pick one that’ll work for you.

Published under: Framework | MIT License

Three.js is a lightweight Javascript 3D Engine with a very low level of complexity – in other words, for dummies. The engine can render to the typical 2D , the new WebGL 3D , and . With 20 lines of code, you can easily create a camera, then create a scene, add a cube on it, create a renderer and add its viewport in the document.body element.

Published under: Framework | License Free

CreditCard.js is a credit card validation library for JavaScript using Prototype. Using CreditCard.validate(’1111 2222 3333 4444′) returns true/false, the given string is automatically stripped of whitespace, so it can be plugged directly into form validations.

It checks if the luhn validation code add up, and the range and the length of the numbers. You can do the card identification via CreditCard.type(string) returns “Visa”, “MasterCard”, etc.

Published under: Forms | License Free