Jul 24, 2025 · An IIFE (Immediately Invoked Function Expression) is an idiom in which a JavaScript function runs as soon as it is defined. It is also known as a self-executing …

Jul 11, 2025 · Immediately Invoked Function Expressions (IIFE) are JavaScript functions that are executed immediately after they are defined. They are typically used to create a local scope …

An immediately invoked function expression (or IIFE, pronounced "iffy", IPA /ˈɪf.i/) is a programming language idiom which produces a lexical scope using function scoping.

Immediately Invoked Function Expression (IIFE) is one of the most popular design patterns in JavaScript. It pronounces like iify.

So What Exactly Is an IIFE? An IIFE is just a function that runs immediately after it’s created. That’s it. The weird parentheses syntax is JavaScript’s way of saying “create this function AND …

May 17, 2025 · IIFEs are a fundamental part of JavaScript's functional programming capabilities. They allow you to execute code immediately while maintaining a clean and isolated scope.

If explicit global API is requiredI reach for IIFE when constraints are external (unknown host page, no build system control, one-file delivery). I pick modules and explicit boot functions when I …

An IIFE (Immediately Invoked Function Expression) is a JavaScript function that is defined and executed immediately. It's a common design pattern that creates a private scope for your …

Sep 5, 2023 · Immediately-Invoked Function Expressions (IIFE), pronounced "iffy", are a common JavaScript pattern that executes a function instantly after it's defined. Developers primarily use …

What Is an IIFE? Normally, a function runs only when it is called. An IIFE runs automatically when the JavaScript engine reads it (compiles it).