Function Declaration vs Function Expression - JavaScript Tutorial 60

Notes for You:: JavaScript Function Declaration vs Function Expression - JavaScript Tutorial 60

Function defined using function declaration:
1. We can call a function before the function definition.

Example Code:
wishHi(); // no error

function wishHi()
{
}

Function defined using function expression:
1. We cannot call a function before the function definition.

Example Code:
wishHi(); // error: wishHi is not a function

var wishHi = function()
{
}

Note:
Function declarations get hoisted not function expressions.

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Follow the link for next video:
JavaScript Tutorial 61 - Function Constructors in JavaScript | JavaScript Function Constructor

Follow the link for previous video:
JavaScript Tutorial 59 - Function Expressions in JavaScript | JavaScript Function Expressions

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