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30-seconds-of-code

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A collection of useful JavaScript snippets.

github.com/30-seconds/30-seconds-of-code

30-seconds/30-seconds-of-code

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### First-class function A programming language is said to have first-class functions if it treats them as first-class citizens, meaning they can be passed as arguments, be returned as values from other functions, be assigned to variables and stored in data structures.