Installing Bower on Ubuntu 14.04 LTS

Bower is a package manager for the web and offers a generic solution to the problem of front-end package management. For example the Polymer library uses Bower for package management. In fact, the primary reason for me to install Bower was to use Polymer. The main difference between Bower and pther package managers is that Bower will manage any packages, even if that means HTML, CSS, or images. In this case, a package means any third-party code, usually publicly accessible from a Git repository.
(more…)

Read More

PHP applications on Google App Engine

A couple of years back if you needed to run PHP on Google App Engine you were required to use a open source tool like Quercus, a 100% Java implementation of PHP, to run your PHP applications on the App Engine. However, as you would have guessed, it was not easy to work as with using a native PHP implementation. Now that App Engine natively supports PHP and MySQL, you can easily write PHP applications.
(more…)

Read More

Calculating descriptive statistics in MySQL

Descriptive statistics can be quite useful for simple analysis of records in a database. For example, to calculate average numbers of sales or products for a particular duration, or the Variance of sales for a month etc.

We can easily calculate standard descriptive statistic measures in MySQL such as MEAN, SUM, STANDARD DEVIATION, VARIANCE, MIN and MAX using built-in functions. Below is a sample student table with student id and scores which we will use for calculating descriptive statistical measures.
(more…)

Read More

Smartphone ecommerce usage infographic

Developers have a lot to consider when it comes to the user experience: making sure everything works, how intuitive it is to use, and that it beats the competition. But one thing that developers have to consider now on top of everything else is how to deliver all of these same variables in a pocket-sized, mobile format.

Having a mobile app is something that users expect from brands now, and it’s a big part because the rising level of reliance on mobile devices. Mobile functionality is something that’s impossible to ignore, and in order to develop properly for it, you need to understand who’s going to be using it.
(more…)

Read More

How to detect and redirect to a mobile site in PHP

With multiple versions of a site now common, it is important to redirect to the appropriate version depending on the type of device the user is using. For example if a user is viewing a website on a mobile device, we should be able to redirect to a mobile friendly version of our site. For this purpose we should be able to detect the device the user is using and act accordingly. This is where mobile detection libraries come in handy.
(more…)

Read More

Flexible date manipulation in javascript

Date manipulation is a common programming task a developer does regularly and many times can get tricky and cumbersome. If youy web applications relies heavily on date manipulation on the frontend than moment.js is the library you have been looking for.

In short this is what you can do with moment.js

moment("20111031", "YYYYMMDD").fromNow(); // 2 years ago
moment().endOf('day').fromNow(); // in 2 hours
moment().startOf('hour').fromNow(); // 9 minutes ago
 
moment().subtract('days', 6).calendar(); // Last Wednesday at 10:09 PM
moment().add('days', 1).calendar(); // Tomorrow at 10:10 PM

(more…)

Read More