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 …

Aug 10, 2025 · A closure is a function that retains access to its outer function's variables, even after the outer function has finished executing. It "remembers" the environment in which it was created, …

ECMAScript 2015 and subsequent JavaScript versions have introduced new language features that provide alternatives to closures. While closures are a powerful concept in JavaScript, new JavaScript …

Feb 18, 2020 · What are Closures? A closure is the combination of a function and the lexical environment (scope) within which that function was declared. Closures are a fundamental and …

Sep 21, 2008 · In JavaScript, if you declare a function within another function, then the local variables of the outer function can remain accessible after returning from it. In this way, in the code above, secret …

Jun 6, 2024 · A closure is a fundamental concept in JavaScript (and many other programming languages) that allows a function to retain access to its lexical scope, even after the function that …

Closures allow JavaScript functions to access variables from their lexical scope even after the parent function has finished. Lexical scoping defines which variables are accessible based on where they …

Jun 10, 2025 · What is a Closure? A closure is a combination of a function and the lexical environment within which that function was declared. Put simply: A closure allows a function to access variables …

Aug 16, 2025 · 1. What is a Closure? A closure is created when a function “remembers” the variables from its outer scope, even after that scope has finished executing. In simpler words: 👉 A closure gives …

In JavaScript, a closure is a function that references variables in the outer scope from its inner scope. The closure preserves the outer scope inside its inner scope.