SMRTR ProgrammingJul 16, 2025Dev.to

The JavaScript Runtime Handbook - Deno, Bun and Node.js in 10 minutes

SMRTR summary

JavaScript runtimes like Node.js, Deno, and Bun enable systems-level programming by providing bindings to lower-level languages. These runtimes offer network capabilities, system access, and extensibility. Node.js uses C++, Deno leverages Rust, and Bun is built on Zig. Understanding runtimes allows developers to create advanced infrastructure beyond basic CRUD applications.

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