Immediately Invoked Function Expression (IIFE) | Javascript IIFE Function Expressions Explained

Code :

//Immediately Invoked Function Expression (IIFE)
//It is a javascript function which runs as soon as it is defined

//first closing paranthesis makes an expression
//Last closing paranthesis tells javascript interpreter to call this
//function immediately
(function(){
})();

//Named IIFE

(favMovie = function(movie="Inception"){
})();

favMovie("Interstellar")

//Adv : to avoid declaring variables in global scope and to create
//closures

let b=2

{
let b=3
}

O/P :
Welcome to Azhar Techno Coder Channel
My favorite movie is Inception
My favorite movie is Interstellar
3
2

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