In the former article of the series We rendered the user interface of our widget inside an anchor element in publisher’s website; We asynchronously loaded widget styles; We implemented a very naive authentication mechanism. We also defined a job queue _wdq (similar to google analytics’ _gaq) to be able to …

After my conference on jstanbul 2012, I updated the presentation adding some bullet points for the questions and feedback from the community.     You can view and download the presentation from SlideShare. And I’ll continue this blog’s series on JavaScript Widget Development Best Practices from where I left. Until …

This is the beginning of a new article series where we will see best practices, common pitfalls, and “how to”s on creating JavaScript Widgets for external sites. Throughout the examples we will be using: node.js for the server; On top of node, expres.js framework as a higher-level abstraction; mongodb for …

Unless you have been living in a cave for the recent two years, you should known that node.js is a highly efficient platform built on Chrome’s JavaScript runtime for easily building fast, scalable network applications, by using an event-driven, non-blocking I/O model. node.js is lightweight and efficient; perfect for data-intensive …

Functions are the building blocks of any JavaScript module. In this tutorial, we’ll have a glance on basic principles behind functional programming in JavaScript, along with some lesser known features of JavaScript functions. This is mainly a follow-up, and a more in-depth analysis, of a former JavaScript Function Kung-Fu post. …

By the time of this writing, o2.js is at version 0.16.201106101845. You can always get the most up-to-date version from the o2.js SVN Repository (user: o2js pass: o2js). Here’s what’s new in this version: o2.js Documentation Updates I’ve updated the documentation, going over each and every single file. In addition, …

We will soon finalize our Mobile JavaScript Application and convert it to an Android-market-ready .apk file. But before that we’ll need some enhancements to our o2.Jsonp object. o2.Jsonp, which allows cross-domain communication using JSON with Padding, was first mentioned in this post. You can click here, to get the source …

Today, it’s been my first week at grou.ps . Grou.ps was kind enough to let me use o2.js in production code. This helped me enhance and stabilize the framework furher. I’ll try to summarize what has changed in the following week in o2.js core briefly: MIT License From now on, …

String is a data type that any developer spends most of time working with. We format, we replace, we sanitize, we prettify, we trim, we encode, we decode, we serialize… Strings tirelessly, over and over And it’s virtually impossible to think about a JavaScript framework without some kind of a …

Reconsidering of the is function we created in our former eqality post, I realized that it’s a pretty reusable piece of code. Thus, I decided to create an o2.Validator module out of it.