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What is a Temporal Dead Zone?

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Temporal Dead Zone is a behaviour that occurs with variables declared using let and const keywords.

It is a behaviour where we try to access a variable before it is initialized.

Examples of temporal dead zone:

x = 23; // Gives reference error

let x;

function anotherRandomFunc(){

  message = "Hello"; // Throws a reference error

  let message;



In the code above, both in global scope and functional scope, we are trying to access variables which have not been declared yet. This is called the Temporal Dead Zone .

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