** JavaScript's Prototype Chain Explained: Understanding the Fundamentals for Efficient Development

The prototype chain is a fundamental concept in JavaScript that enables object inheritance and dynamic behavior. Each JavaScript object has an internal property, [[Prototype]], which links to another object or null, forming a chain that facilitates property lookups. While modern ES6 classes provide a polished view, they are ultimately syntactic sugar over the prototype-based system.

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Source: https://dev.to/shafayeat/whats-javascripts-prototype-chain-1e16