From the course: Master Next.js: Elaborate Hands-On Web Development, React Basics, Advanced Next.js, and Deployment

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What are closures and an example with JavaScript explained?

What are closures and an example with JavaScript explained?

From the course: Master Next.js: Elaborate Hands-On Web Development, React Basics, Advanced Next.js, and Deployment

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What are closures and an example with JavaScript explained?

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OK, so we've covered the basics of functions in JavaScript. Now we're going to look at what I think is probably the most important part of understanding the essentials JavaScript functions for React and just for JavaScript itself. But this is really how React works. One of the main reasons why it works so well is the way it maintains state. and it does it with this concept known as closures. Closures go well beyond just maintaining state. They're very important for privacy as well. With closures, you can create functions that remember the values of variables, which allows functions to maintain their own state, even if the outer function is finished executing. But I'm getting ahead of myself. I'm getting ahead of myself. Let's actually learn what a closure is in simple terms. in this lesson. So we're gonna close the FunctionScope lesson, which was a good segue into this, and we're gonna create a new file, and we're gonna call this file closures.js. All right, so let's create this file.…

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