Category Archives: Web Development

Encouraging Code Reuse (inspired by jQuery)

«This class is unusable. I have reprogram it from scratch.» Does that sound familiar to you? – To me it is something I heard over and over again from my developers. Resulting in having five or six implementation of an … Continue reading

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Anatomy of the Twitter worm

The worm which made trouble on twitter today is a textbook example of XSS which happens when user input is not properly escaped before being displayed. Here’s how it worked:

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20 notes about Silicon Valley

I spent last week in the Silicon Valley. In a group of 12 people we have visited some companies and organizations. Here’s a random mix of thoughts I had: The hottest topics are Cloud Computing and Green IT. Despite Green … Continue reading

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Scrum: How we do Sprint Retrospectives

Four weeks have passed since the last sprint planning meeting. Sprint number two has come to an end. It’s time for the sprint retrospective. The motivation for the sprint retrospective is: Visualize the accomplishment – important for the team morale … Continue reading

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MVC for Javascript Controls

I recently had to take over an unfinished project. It was an AJAX control to select multiple friends as you can find it on Facebook. “It’s 99% complete”, I was told. Yeah, right. I counted 2 story points (without looking … Continue reading

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Implementing scrum at tilllate.com

The first sprint is done! Yes we finally started doing Scrum at tilllate.com*. Well, it’s not exactly how Schwaber and Sutherland would expect it. But our way fits our team. And the acceptance in both the IT team and the … Continue reading

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Nine ways to obfuscate e-mail addresses compared

When displaying an e-mail address on a webpage you obviously want to obfuscate it to avoid it getting harvested by spammers. But which obfuscation method is the best one? I drove a test with 10 methods. Here are the results. Continue reading

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Unit testing makes coding more fun

“unit testing is a test that validates that individual units of source code are working properly”, that’s what Wikipedia says about unit testing. That’s general knowledge. But what motivates me even more than the increased software quality is that it … Continue reading

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Unit test practice at tilllate.com

For now over three years we are working with unit tests. I’d like to share some of those experiences. As we have two frameworks in place for our website, I can compare two different strategies for unit tests. In our … Continue reading

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Sharedance, Memcached and Cache_Lite

With 125 million page impressions a month and highly dynamic content, caching is essential for tilllate.com. At tilllate, we have worked with several different caching techniques. Before we used caching, we just pre-generated the data: A nightly cron job populates … Continue reading

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