What exactly is a "closure" in JavaScript?

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Ravi Ranjan Kumar Ranjan Kumar

A closure is a feature in JavaScript where an inner function has access to the outer (enclosing) function's variables — a scope chain. The closure has three scope chains: it has access to its own scope — variables defined between its curly brackets. it has access to the outer function's v...
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A closure is a feature in JavaScript where an inner function has access to the outer (enclosing) function's variables — a scope chain. The closure has three scope chains: it has access to its own scope — variables defined between its curly brackets. it has access to the outer function's variables. read less
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