'this' Keyword — Let’s Decode It Once and For All (Part 1)

So I was preparing for interviews and guess what people are still interviewing like it's 2022. What's the difference between let and var. Give me a break. LLM's are moving ahead and so should you. One of the most nutty topics I came across was 'this' keyword and it is troublesome. I think it's one such topic for which you feel like the information is not structured enough. Let's make it structured. So before Starting anything, I hopw that you are aware of basic syntax of Javascript. What I mean