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2) Javascript Runtime

JavaScript Runtime JavaScript Runtime The JavaScript runtime environment is what allows JavaScript code to execute. It provides the necessary tools and infrastructure for the JavaScript engine to interact with the outside world, handle asynchronous operations, and manage events. While the JavaScript engine (like V8) handles the core execution of JavaScript code, the runtime provides the supporting environment. Examples of JavaScript runtimes include: Browser Runtime: Found in web browsers like Chrome, Firefox, and Safari. It provides Web APIs for DOM manipulation, network requests, timers, and more. Node.js Runtime: Used for server-side JavaScript development. It provides Node.js APIs for file system access, network communication, and other server-side functionalities. Deno Runtime: A secure runtime for JavaScript and TypeScript. ...
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1) JS Engine

JavaScript Engine JavaScript Engine: The Heart of Execution A JavaScript engine is a program that executes JavaScript code. It's the core component that allows web browsers and Node.js to run JavaScript. Most modern JavaScript engines are written in C++ for performance reasons, enabling efficient memory management and direct interaction with the operating system. These engines parse, compile, and execute JavaScript code, managing memory, handling function calls, and performing garbage collection. Examples of popular JavaScript engines include: V8 (Chrome, Node.js, Deno): Developed by Google, known for its speed and performance. SpiderMonkey (Firefox): Developed by Mozilla, one of the earliest JavaScript engines. JavaScriptCore (Safari): Developed by Apple. Chakra (Edge): Developed by Microsoft. ...
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