In this snippet,
createGreeting is a function that generates another function, capable of remembering the
message passed to it even after the outer function has finished executing. This is closure in action!
To create a closure, simply define a function inside another function and expose it. To expose a function, return it or pass it to another function. The inner function will have access to the variables in the outer function scope, even after the outer function has completed execution.
Let's look at an example where closures can manage private data:
In the above example,
count is private. Only the
getCount methods exposed through the closure have access to it.
Join our community of forward-thinkers and innovators. Subscribe to get the latest updates on courses, exclusive insights, and tips from industry experts directly to your inbox.