What is Hoisting in JS?

Question

Accepted Answer

Hoisting is a JavaScript behavior where variable and function declarations are moved to the top of their scope.

Hoisting applies to both variable and function declarations.
Variable declarations are hoisted but not their initializations.
Function declarations are fully hoisted, including their definitions.
Hoisting can lead to unexpected behavior if not understood properly.

Accepted Answer

Hoisting is a JavaScript mechanism where variable declarations and function declarations are moved to the top of their respective scopes during the compilation phase. This means that variables and functions can be used before they are declared in the code.

In the case of variables, hoisting only moves the declaration to the top of the scope, not the assignment. This means that if a variable is assigned a value before it is declared, the value will not be hoisted with the declaration.

What is Hoisting in JS?

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