Image lazy loading is a concept where images are getting loaded only when needed. It has been adopted in many web applications to reduce usage of bandwidth. When a web page is loaded in a web browser, not all the page elements would be visible in the view port, hence those resources(images, videos etc) don't need to be loaded. Currently there are quite a few open source plugins on Github which can help achieve image lazy loading. Today we will introduce a few of them.Echo.jsEcho.js is a standalone JavaScript image lazy loading plugin, it doesn't rely on any other third party library. Its ...

Are you still remembering the then hot debated news about Oracle suing Google allegedly copying a small portion of codes from Oracle's Java in 2010. At that time, Oracle experts estimated that Google owes Oracle between $1.4 billion and $6 billion in damages if liable. But the court thought Oracle was eligible only for statutory damages for that copying, which were not expected to exceed a few hundred thousand dollars. At last, Oracle agreed the zero damage result.Are you curious about which portion of codes Oracle claimed were stolen? Actually, it's only a really small portion of it, aro...

How to ensure the security of open source projects is a concern for many open source users including individual users and companies. But it's not an easy task to ensure the security of open source projects.Because everyone can see the source code, there is much higher possibility that a bug may be found by someone. Once a bug is disclosed, people may exploit it and do evil things, this may cause loss of money either for individuals or companies, some of the bugs may even have big impact to the whole industry. For example, the recent HeartBleed bug in OpenSSL.Also since many of the open source ...

Bootstrap is a free front end framework used for creating websites and web applications. It contains HTML and CSS-based design templates for typography, forms, buttons, navigation and other interface components, as well as optional JavaScript extensions. It now becomes a very popular front end frameworks for web designers. This framework was developed by Mark Otto and Jacob Thornton at Twitter. Later this framework was open sourced and hosted on GitHub and it now becomes one of the most popular projects on GitHub. Some people may be curious about why Bootstrap is open sourced. One of the ...

Code hosting community Github has much proud data: 55 employees, Andreessen Horowitz promised a $100 million investment, $750 million valuation, a place developers stay longest since its launch in 2008 ... Github announced the official launch of a separate teaching page, to teach developers collaborative programming through various forms.Github announces the detail about the training program on its official blog, the entire training project has two modes : free and paid. The content of their trainning is about basic Git and Github technologies. The separate training page provides web-based cou...

Google recently open sourced a tools for finding memory leaks in JavaScript programs.In JavaScript you cannot have "memory leaks" in the traditional sense, but you can have objects which are unintentionally kept alive and which in turn keep alive other objects, e.g., large parts of DOM.Leak Finder for JavaScript works against the Developer tools remote inspecting protocol of Chrome, retrieves heap snapshots, and detects objects which are "memory leaks" according to a given leak definition.The default configuration of the tool detects goog.Disposable objects which were not dispose()d. goog.Even...

If not invested by Andreessen Horowitz, GitHub might not be noticed by Forbes, CNN, New York Times. People didn't know this tool because it was very far away from the world -- GitHub is a project hosting service used by programmers.But to some programmers, it is not just a place for project hosting, it is`also the hub for open source projects, a place for programmers improving themselves and a social network for programmers.There are around 3.26 million projects hosted on GitHub currently, including Linux, Ruby on Rails, jQuery, Apache and the popular Node.js.Why is GitHub so popular?It is an ...

July 9, 2012 news, Google engineer Scott Blum published an article on Google+ which revealed that Google would open source the Collaborative IDE. The project was named "Collide" (collaborative IDE), which is a Web collaborative code editor. Google hopes that Collide can serve as a catalyst for improving the state of web-based IDEs.Caution Collide does not have any proper auth, SSL support, or user account management just yet. Please consider that fact when running instances that expose important files on disk! As the project matures we will implement more security features to enable using this...