Lazyr.js is a small, fast, modern, and dependency-free library for lazy loading images. Lazy loading boosts page speed by deferring the loading of images until they’re in (or near) the viewport. This library makes it completely painless – maximizing speed by keeping options to a minimum. The scroll event has been debounced to minimize the weight on the browser, and images are revealed within rAF to ensure optimal rendering. For each image, put a placeholder in the src attribute, the regular image in the data-layzr attribute, and the retina image in the data-layzr-retina attribute.

T3 is a client-side JavaScript framework for building large-scale web applications. T3 is different than most JavaScript frameworks. It’s meant to be a small piece of an overall architecture that allows you to build scalable client-side code. A T3 application is managed by the Application object, whose primary job is to manage modules, services, and behaviors. It’s the combination of these three types of objects that allow you to build a scalable JavaScript front-end.

The Electron framework lets you write cross-platform desktop applications using JavaScript, HTML and CSS. It is based on io.js and Chromium and is used in the Atom editor. You can use HTML, CSS, and JavaScript with Chromium and Node.js to build your app.Electron is open source; mantained by GitHub and an active community. Best of all, Electron apps build and run on Mac, Windows, and Linux.

React has gained a lot of popularity recently and has attracted a large and active community. This results in a vast wealth of reusable components for it that will save you time when coding. The library itself encourages writing loosely coupled code that is modular and composable.

In this post we are trying to implement a login system based on the Facebook’s authentication system.

AngularJS Constants is a provider where you can store or save application configuration data. AngularJS Constants is injectable at any part of your application and it works.