IIFE

Lecture 186:- IIFE

IIFE stands for Immediately Invoked Function Expression. It is a JavaScript function that runs as soon as it is defined. It is also known as a self-executing anonymous function.

The basic syntax of an IIFE is:

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(function () {    // function body })();

An IIFE can be used to create a private scope for variables and functions. The variables and functions defined inside the IIFE are not accessible from the outside, which can help avoid naming conflicts and keep the global scope clean.

Here's an example of an IIFE that defines a private variable and function:

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(function () {    var counter = 0;    function increment() {        counter++;        console.log(counter);    }    increment(); })();

In this example, the counter variable and increment function are defined inside the IIFE and are not accessible from outside the function. The increment function is called immediately after it is defined, and it logs the value of the counter variable to the console.