developer-roadmap/roadmaps/javascript/content/iifes@YZlCoPvZuX5MmpLOTj5d4.md

IIFEs

An IIFE (Immediately Invoked Function Expression) is a function that is defined and called at the same time. It is written as (function() { ... })() or (() => { ... })(). IIFEs are used to create a private scope, avoiding polluting the global namespace, and were common before ES6 modules.

Visit the following resources to learn more:

• @article@IIFE — MDN Docs
• @article@JavaScript in Plain English - IIFE