developer-roadmap/roadmaps/javascript/content/block@uqEzHYx13Y2EpvTTRzykn.md

Block

Block scope limits a variable's visibility to the block of code enclosed in curly braces {} where it is declared. Variables declared with let and const are block-scoped. A variable inside an if statement or for loop with block scope is not accessible outside that block.

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• @article@JavaScript Scope