Add a new Topic on JavaScript Docs

[kumar007ambi]

Feature request

Add IIFE Topic on miscellaneous Section

Ok ## Summary

IIFE provides encapsulation, allowing you to create private scopes for variables and functions

Examples

(function () { // … })();

[simon04]

DevDocs does not author any docs itself. IIFE is covered here https://developer.mozilla.org/en-US/docs/Glossary/IIFE, the glossary is not part of https://devdocs.io/javascript/, though...