JavaScript Closures – Explained in 180 Seconds

Closures are one of the most powerful — and most misunderstood — concepts in JavaScript. In this no-fluff, fast-paced breakdown, we’ll show you exactly what closures are, how lexical scope works, and why functions in JavaScript can “remember” variables even after their parent function is long gone.

what you'll learn:
- What a closure really is (without BS)
- Lexical scope explained visually
- How JavaScript functions retain access to variables

Real-world use cases: private state, async logic, function factories, and more

0:00 - What is a closure?
0:24 - Lexical scope explained
0:48 - Trap example with logX
1:28 - Counter function and private state
2:21 - Key concept
2:40 - Real world use cases
2:51 - summary

[weirdz]

Could you explain arrays and how you may use them, including the parts of an array, the terminology, and what they do?