What are the best practices for using IIFE in JavaScript?

What are the best practices for using IIFE in JavaScript?

IIFE, or Immediately Invoked Function Expression, is a design pattern in JavaScript. Best practices include using it to avoid polluting the global scope, encapsulating variables, and maintaining clean code.

Can you give me an example of an IIFE?

Sure! Here's a simple example:

(function() {
    var message = 'Hello, World!';
    console.log(message);
})();

This function runs immediately and logs 'Hello, World!' to the console.

What are the benefits of using IIFE?

The benefits include preventing variable hoisting, avoiding global scope pollution, and creating private variables that are not accessible from outside the function.

Are there any downsides to using IIFE?

One downside is that it can make debugging more challenging since the variables are not accessible outside the function. Additionally, overusing IIFE can lead to code that is harder to read.