Modern JavaScript from the Beginning - Second Edition - Primitive Versus Reference Types

The video tutorial explains how primitive and reference type data are stored in memory, focusing on the stack and heap. It uses diagrams to illustrate these concepts and demonstrates them in VS Code. Primitive types are stored directly on the stack, while reference types like objects and arrays are stored in the heap and accessed by reference. The tutorial emphasizes understanding these concepts to grasp how JavaScript works, even if the details are initially confusing.

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