What is Function Hoisting ?

Question

Bidyasagar Mishra · Answer

In JavaScript, a variable can be declared after it has been used.
In other words; a variable can be used before it has been declared.
JavaScript only hoists declarations, not initializations.

Naveen Bisht · Answer

you are using function before declaring it.

Atul Sharma · Answer

console.log("From calling "+myFunction());
function myFunction()
{ console.log("From function "+ " Function Hoisting !!!");
return "Function Hoisting !!!"; }
Output - From function Function Hoisting !!! From calling Function Hoisting !!!
So, you can call a function (myFunction()) even before declaring it.
This is called Function Hoisting in JavaScript.

Atul Sharma · Answer

console.log("From calling "+myFunction());
function myFunction()
{
console.log("From function "+ " Function Hoisting !!!");
return "Function Hoisting !!!";
}
Output -
From function Function Hoisting !!!
From calling Function Hoisting !!!
So, you can call a function (myFunction()) even before declaring it. This is called Function Hoisting in JavaScript.

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What is Function Hoisting ?

4 Answers