Question 1

Are let and const hoisted in JavaScript?

Accepted Answer

Memory is allocated for them, so technically yes. But they are placed in the Temporal Dead Zone and remain uninitialized until the declaration line. Accessing them early throws a ReferenceError.

Question 2

Is hoisting only for var?

Accepted Answer

No. let, const, and function declarations are also hoisted.

Question 3

Why does var return undefined?

Accepted Answer

Memory is allocated during the creation phase before code execution.

Question 4

Are function declarations hoisted?

Accepted Answer

Yes. Function declarations are fully available before execution.

Are let and const hoisted in JavaScript?

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