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Ruby’s defined? Operator
Even if you’ve used Ruby’s defined? operator on a daily basis, you may not understand how it works. I sure didn’t until recently, but it’s worth a look. A refresher in memoization etiquette If you’re...
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Ruby’s Splat Operator
Ruby is a dynamic language. One of the things it lets you do is define methods with an unknown (or variable) number of arguments. It does this using the splat operator. But the splat operator can...
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