feat: add global object

Author: ExploitEngineer

part9 (Advanced Topics)/21_global.object.js

@@ -0,0 +1,11 @@
+/*
+INFO: What is the Global Object ?
+The global object is the top-level object that provides global variables and functions.
+It behaves differently depending on where your javascript is running.
+
+
+INFO: Global Object in Different Environments
+Browser = window
+Node.js = global
+Universal (ES2020+) = globalThis
+*/