Understanding JavaScript Scopes and Contexts

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1. Great article on scope and context! One useful addition could be elaborating on the concept of block scope, which is especially relevant in state-of-the-art JavaScript with the introduction of let and const. Unlike var, variables declared with let and const are block-scoped, meaning they’re only accessible within the block (e.g., within a loop or an if statement) they are declared in. That is an important distinction that can help avoid unexpected behavior, especially in more complex code.

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