Web Reference: These two keywords provide Block Scope in JavaScript. Variables declared with let and const inside a code block are "block-scoped," meaning they are only accessible within that block. Jul 11, 2025 ยท The scope is the current context of execution in which values and expressions are "visible" or can be referenced. If a variable or expression is not in the current scope, it will not be available for use. Nov 13, 2023 ยท Understanding the intricacies of global, local, and block scope, as well as the scope chain, is essential for becoming a proficient JavaScript developer. In this article, we've explored these concepts in depth, providing analogies and code examples to aid your understanding.
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