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Sean sends us a one-line function that is a delight, if by delight you mean "horror". You'll be shocked to know it's PHP.
Mar 25function proget(){foreach($_GET as $k=>$v){if($k=="h"){$GLOBALS["h"]=1;}$p=explode(",",$k);}return($p);} //function to process GET headers
Today's anonymous submitter worked for a "large, US-based, e-commerce company." This particular company was, some time back, looking to save money, and like so many companies do, that meant hiring offshore contractors.
Now, I want to stress, there's certainly nothing magical about national borders which turns software engineers into incompetents. The reality is simply that contractors never have their client's best interests at heart; they only want to be good enough to complete their contract. This gets multiplied by the contracting firm's desire to maximize their profits by keeping their contractors as booked as possible. And it gets further multiplied by the remoteness and siloing of the interaction, especially across timezones. Often, the customer sends out requirements, and three months later gets a finished feature, with no more contact than that- and it never goes well.
Many years ago, JP joined a Ruby project. This was in the heyday of Ruby, when every startup on Earth was using it, and if you weren't building your app on Rails, were you even building an app?
Now, Ruby offers a lot of flexibility. One might argue that it offers too much flexibility, especially insofar as it permits "monkey patching": you can always add new methods to an existing class, if you want. Regardless of the technical details, JP and the team saw that massive flexibility and said, "Yes, we should use that. All of it!"