Node.js is an open source, cross-platform JavaScript runtime environment for server-side and networking applications. Node.js is built on top of the Google V8 JavaScript engine, which means Node.js applications are written in JavaScript and use a similar syntax as front-end JavaScript applications, including objects, functions, and methods. [58] Node.js comes with a built-in library that allows applications to act as a web server. […]
Given the boom of web development libraries and frameworks, choosing the right ones for the project can be a daunting task. In this article, a brief comparison of two most commonly used JavaScript toolsets – jQuery and AngularJS – is provided. Round-Trip vs Single-Page Applications As Adam Freeman describes in his book Pro AngularJS [27], […]
A couple of weeks ago I received the Myo Armband from Thalmic Labs and decided to connect it to my Lego Mindstorms EV3 and do my own proof of concept of this new technology. So I built a truck that can be controlled wirelessly with hand gestures. Following is a brief description of the project, […]
I recently upgraded my D3ResponsiveGraphs library and added a new type of graph. D3LineChart is a line chart that supports negative values, responsive design, legends, tooltips, transitions, and ability to show data in a table view. My focus is on keeping the library modular, lightweight, and easy to use. With this new release, I created […]
D3Responsive Graphs is a library of reusable and responsive graphs built with D3js and jQuery. I’m continuously adding more charts, but today I would like to show you my first contribution – D3StackedBar. D3StackedBar is a stacked bar chart with a support of negative values, responsive design, legends, tooltips, transitions, and ability to show data […]
Jaql is one of the languages that helps to abstract complexities of MapReduce programming framework within Hadoop. It’s a loosely typed functional language with lazy evaluation (it means that Jaql functions are not materialized until they are needed). Jaql’s data model is based on JSON Query Language, it’s a fully expressive programming language (compared to […]
Do you have objects with GPS coordinates stored in your DB (if not, you can get GPS coordinates simply) and do you want to search among them on the basis of mutual distances? Yes? So it’s you who can appreciate following MySQL procedure.
This article contains code example of searching and saving GPS coordinates for an addresses stored in the database. For this purpose we will use Google Maps API and Geocoding Service (Geocoding is process of converting addresses into geographic coordinates).