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What is Understanding JavaScript Scope Basics about?

Scope in JavaScript determines the visibility and accessibility of variables and functions. There are three main types of scope: global scope, where variables are accessible anywhere; local/function scope, where variables are only accessible within their function; and block scope, introduced in ES6, where variables declared with let or const are only accessible within their block. The scope chain explains how child scopes can access variables in their parent scopes, forming a chain from the current scope ou

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noman.ejaz

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EN