JavaScript Closures
Understand how JavaScript closures work by exploring lexical scoping and nested functions. Learn how closures maintain access to variables and enhance your ability to write robust Node.js applications.
We'll cover the following...
We'll cover the following...
By the end of this lesson, we’ll be able to understand how closures work.
Closures
JavaScript functions have lexical scopes. The accessibility of the variable to a function depends on where that variable is declared within the code, hence the term “lexical.”
A function ...