JavaScript is a dynamic language, essential in web development and increasingly important in other areas of software development. This guide compil...
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You've omitted
BigIntandSymbolfrom the primitive types.Also, your answer to "What is a Closure?" is not really correct:
The problems with the answer are that ALL functions remember their outer scope, and that a closure isn't a function:
Misconceptions About Closures
Jon Randy 🎖️ ・ Sep 27 '23
This isn't correct. Variables can also be declared inside modules, and inside blocks - both of which are/can be outside of functions, but are not accessible anywhere.
This can also apply to modules and blocks.
🌟 Thank you for your insightful comment! I agree that the scope of a variable declaration in JavaScript goes beyond just functions, extending to modules and blocks as well.
As I mentioned,
and
my focus was on illustrating the basic concept of global and local scope in functions.
Indeed, in JavaScript, the concept of scope extends beyond just functions. Variables declared in modules or blocks (like those inside if statements or loops) have their unique scopes.
For instance,
letorconstdeclarations confine a variable declared inside a block to that block, and it is not accessible outside of it, which aligns with the block-scoping nature of these declarations.