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Aren't we all sinners?
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Using JavaScript has become increasingly easy over the last few years. Whereas back in the day we needed to know the quirks of every browser, now many libraries such as jQuery, YUI, Dojo and MooTools allow someone who doesn’t even know JavaScript to spruce up boring HTML documents with impressive and shiny effects. By piggy-backing on the CSS selector engine, we have moved away from the complexity and inconsistencies of the DOM and made things much easier.
If you look at some of the code that has been released, though, we do seem to have taken a step backwards. In gaining easier access, we also became a bit sloppy with our code. Finding clearly structured, easy-to-maintain jQuery code is quite tough, which is why many plug-ins do the same thing. Writing one yourself is faster than trying to fathom what other developers have done.
The rules for solid, maintainable and secure JavaScript haven’t changed, though. So, let’s run through the seven sins of JavaScript development that will bite you in the backside when you have to maintain the code later on or hand it over to another party.
We’ve all had to work with code written by other people. We have despaired over the lack of maintainability and documentation as well as weird logic. Funny enough, as developers, we started to see this as normal and got used to ignoring other people’s work and instead writing new code for the same problems over and over, as if we were subconsciously trying to secure our jobs by leaving behind unmaintainable code—code that only we understood, while complaining that no good solutions were out there. [...]
Read more: http://www.smashingmagazine.com/2010/02/22/the-seven-deadly-sins-of-javascript-implementation/
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