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Map and Set

Map and Set in JavaScript

WeakMap and WeakSet in JavaScript

Heap vs Stack in JavaScript Memory

Memory Management in JavaScript (Garbage Collection)

What is CORS and why is it important in web development?

Error Handling in JavaScript

ES Modules in the browser (type="module", defer, nomodule)

Import and Export in depth: Named, Default, Dynamic Import

Tree-shaking and Code Splitting in Module System