Nisarga Dey

@Nisarga717

Learning by building. Writing to understand.

Joined December 2025

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JS fundamentalsjs-fundamentals.hashnode.dev2 posts

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Hoisting

Jan 1 · 3 min read · Var vs Let vs Const Featurevarletconst ScopeFunctionBlockBlock HoistedYesYes (TDZ)Yes (TDZ) Initialized on hoistYesNoNo Re-declarationYesNoNo Re-assignmentYesYesNo Global objectYesNoNo First, the Mental Model (Critical) Before definitio...

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Scope in JS

Dec 31, 2025 · 3 min read · Scope determines: Where a variable is accessible Where it is visible Where it can be modified In JavaScript, scope is resolved lexically (at write time, not runtime). Types of Scope in JavaScript JavaScript has three main scopes: Scope TypeC...

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Hoisting

Scope in JS

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Hoisting

Scope in JS