# Understanding Closures in JavaScript

javascript code

Closures are a fundamental concept in JavaScript that allow functions to access variables from their outer scope. Here’s an example:

function outerFunction(outerVariable) {
return function innerFunction(innerVariable) {
console.log(`Outer Variable: ${outerVariable}`);
console.log(`Inner Variable: ${innerVariable}`);
};
}
const newFunction = outerFunction("outside");
newFunction("inside");

Closures are particularly useful for creating private variables and functions. For example:

function Counter() {
let count = 0;
return {
increment: () => count++,
getCount: () => count
};
}
const counter = Counter();
counter.increment();
console.log(counter.getCount()); // 1

Closures are a powerful tool in JavaScript, enabling encapsulation and modularity.

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