Stop 05 · Backend with Node.js & ExpressTopics · 1/8

Node.js Runtime & Event Loop

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In short

The JavaScript runtime (built on V8) that lets you run the same language you use in the browser on the server — and the event loop that lets it handle many concurrent requests despite being single-threaded.

How to learn this

  1. 1Install Node.js and run a simple script from the command line.
  2. 2Log the order of `setTimeout`, `Promise.then` and synchronous code to see the event loop in action.
  3. 3Understand why a long synchronous computation blocks the entire server.

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