Javascript Pointers
Pointers are a powerful part of C, and they're so simple that it's not too hard to replicate them in other (powerful) languages. I made a pointer system not unlike C's in just a few lines of javascript.
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Pointer implementation in JavaScript. Reminds me of an interview I did 2 years ago when an interviewee said that “pointer operations are difficult in JavaScript”. Maybe he wasn't a loon, after all?