Javascript Closures - Explained in 7 minutes

Closures are one of the hardest concepts to master, but once you grasp the principles, you will recognize their potential.

A $40k question is this. There's a significant probability you won't be employed if you give the incorrect response to this question. Regardless of how long you've been a software developer, there's a significant possibility you'll get recruited as a junior developer if you do.

In both functional and object-oriented programming, it's essential to grasp how variables and functions connect to one another in order to comprehend what's happening in your code.

The reason skipping this question in an interview is so detrimental is that ignorance of how closures operate is a rather obvious red flag that can expose a lack of extensive knowledge, not just in JavaScript but in any language that heavily utilizes closures.