Unless you continually monitor page weight, you won’t know how your diet is progressing. The average page now exceeds 1.7Mb and increased by 32% in 2013 alone. If your developers are secretly gorging themselves on fattening widgets, any of the following assessment tools will highlight their gluttony. They’re all free and take a few seconds to run — what are you weighting for…

Those with several years development expertise will realize it’s a regular expression. But even the most astute guru will take a few moments to determine that it checks the validity of an email address. Only a superior subset of that group will comprehend that it’s fairly superficial and won’t check all possibilities.

Regular expressions are extremely powerful search patterns which can be used for string matching and replacement. They’re supported in the majority of languages including JavaScript, PHP, Perl, Java, C#, Python and Ruby.

Individual rules are normally straight-forward, e.g. [a-z] matches a single lowercase character and c.t matches a three letter string starting with ‘c’ and ending with ‘t’ — such as ‘cat’. However, when rules are combined, an indecipherable string of seemingly random codes starts to appear. The one above is relatively simple compared to many you’ll find in the wild.

Creating your own regular expressions is difficult enough and many of us resort to using the force. But it’s easy compared to parsing someone else’s code — which is normally written by someone who has an irrational aversion to comments!

Fortunately, Jeff Avallone has created a solution to your regex woes. RegExper transforms meaningless JavaScript-based expressions into a graphical representation:

If you’re hoping to learn why tests are beneficial, this is not the article for you. Over the course of this tutorial, I will assume that you already understand the advantages, and are hoping to learn how best to write and organize your tests in Laravel 4.
Version 4 of Laravel offers serious improvements in relation to testing, when compared to its previous release. This is the first article of a series that will cover how to write tests for Laravel 4 applications. We’ll begin the series by discussing model testing.

Czasami transfery w sieci są podejrzanie niskie i zachodzi konieczność wykrycia wąskiego gardła.

Najłatwiej zrobić to przy użyciu narzędzia iperf, dostępnego na wszystkie popularne platformy.

Użytkowanie narzędzia jest bardzo proste

When you have decided that you want to usability test, one of the first things you have to consider is what you are going to usability test. Although this may sound like a very straightforward question, there are a number of facets you need to consider to make your test successful and to ensure you are testing the right things.

Of course, what you are trying to test can vary a lot depending on the product or service you are working on, but there are some simple rules that you can follow to ensure you get the best, most effective results you can from your testing process.

Good unit tests are focused, fast and isolated. Unfortunately, the code to test sometimes depends on other code that may comprise performance and/or isolation. In this article we will explore some of those cases, and how we can deal with them by planning for testability and loose coupling, and by using test fakes.

Whether you are an experienced Web programmer or just starting out, you know that there are many browsers currently in use and have probably had experience with the cross-compatibility issues. The frustration of building a beautifully functioning website using Firefox, then discovering it doesn’t render properly in IE6 is a definite learning experience. Testing your creations in as many browsers as possible is crucial to turning out a professional product.

There are a multitude of tools available to allow cross-browser testing with only one computer and your favorite browser. Many of them will let you do online testing of multiple versions of the most commonly used browsers and some will include applications you may never have heard about. A few require downloading and installation on your machine.

With the ever-increasing sales of smartphones and the burgeoning tablet market starting to skyrocket, coupled with far greater access to more robust mobile data networks, the internet is now being accessed by our users in a multitude of new ways.

The huge range of mobile devices used to browse the web now means you really have to consider making your site mobile-compatible.

But how do you go about it? Testing your site on mobile devices can be time-consuming and expensive due to the vast number of different mobile devices.

Fear not, because there are some handy tools available at your disposal for making sure that your website renders appropriately on the Mobile Web. This article shares and discusses 10 such tools.

The goal of any great website is to provide quality content for its readers and clients, though no website can be truly successful if it cannot provide the content in a timely manner. How much time is acceptable isn’t always up to you though. It’s in the eyes of the beholder, hence the readers.

If you have a flash based website that is media heavy, and your users knows is, they will probably be ok waiting a minute or two while your page loads. Though, if on the other hand you have a mostly text based website and it takes two minutes to load, there is 99.99% chance the person will not wait. These days, people want information and websites to be practically instantaneous.