Are closures just functions in JavaScript?

No. A closure is the combination of a function and its lexical environment (the variables it closes over). The function alone is not the closure; the function plus the retained outer variables is the closure.

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More FAQs in What Is a Closure in JavaScript?

A closure allows a function to remember variables from its outer scope.

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Yes. Closures are one of the most commonly asked JavaScript interview topics.

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Closures are used for data privacy, callbacks, event handlers, and many advanced JavaScript patterns.

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