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What is the temporal dead zone?

A The period where a let or const binding exists but cannot be accessed
B A delay before setTimeout fires
C The time between page load and script execution
D A region where code cannot be minified

Answer

The period where a let or const binding exists but cannot be accessed

let and const are hoisted but uninitialised, so accessing them before the declaration throws a ReferenceError instead of returning undefined.

All Javascript MCQs

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