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jQuery UI is an excellent add-on library for jQuery that provides all sorts of UI widgets, effects and behaviours. One particularly useful function is provides is to make any element on the page draggable, so that it can be moved about with the mouse. Because of all the features that jQuery UI provides the library is fairly large, about 450KB uncompressed. It is possible to only include specific p

Life as a web developer can be hard when things start going wrong. The problem could be in any number of places. Is there a problem with the request your sending, is the problem with the response, is there a problem with a request in a third party library you're using, is an external API failing? There are lots of different tools that can make our life a little bit easier. Here are some command li

$ node.io google.js hello has about 878,000,000 results foobar has about 2,630,000 results weather has about 719,000,000 results OK: Job complete Scraping Multiple Pages Unfortunately some of the documentation simply says coming soon, so you're left to guess the best way to put together more advanced scraping workflows. For example, I wanted to scrape the search results from GitHub. If you search

When I'm programming I like to listen to music, as I find it blocks out distractions and keeps my mind focused. I usually listen to a variety of streaming chillout radio stations using my command line application PyRadio. I was recently reading through the Lua wikipedia page and noticed that VLC media player has support for Lua plugins, and thought that creating a streaming radio plugin would be a

There have been lots of links to automatic website thumbnail generators on sites like reddit and hacker news today, including webkit2png and CutyCapt. Well it just so happens that a few weeks ago I wrote my own website thumbnail generator, and today I got around to putting it on GitHub. The code is based on Matt Biddulph's screenshot-tng script, but heavily modified to be more user friendly and pr

My recently published Six Revision guest post, 10 Puzzle Websites to Sharpen Your Programming Skills, got a great response, hitting the front page of Hacker News, Reddit, and doing fairly well on Digg too. Lots of comments were left pointing out some sites which weren't included in my list, so I'm following up here with a list of 10 more top programming puzzle websites: 1. Code Chef Code Chef has

As a computer scientist I'm always looking to improve my knowledge of the subject. There are lots of great sources of information available online, but nothing really beats the depth of knowledge that you can find in a book. It is possible to get the best of both worlds though, as many books are now available online in full, and free of charge! Below is a selection of 25 of the best free computer

Below is a collection of 10 great Python programming books that are available online in full, completely free of charge: Dive into Python This is a fantastic book that is also available in print. It covers everything, from installing Python and the language's syntax, right up to web services and unit testing. This is a good book to learn from, but it's also excellent to use a reference. I frequent