Web Reference: Nov 4, 2025 · A closure is the combination of a function bundled together (enclosed) with references to its surrounding state (the lexical environment). In other words, a closure gives a function access to its outer scope. JavaScript closures are a fundamental concept in the language, often misunderstood by developers of all levels. They are a powerful feature that enables you to write more efficient, maintainable, and expressive code. Dec 23, 2024 · This article delves into the intricate mechanics of closures, elucidates their theoretical foundations, and explores pragmatic applications augmented by detailed examples.
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