What is Node.js?

What is Node.js?
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The Node run-time environment includes everything you need to execute a program written in JavaScript. In our materials, we paid a lot of attention to Node.js’ package ecosystem. And today we offer you to discuss why is it so popular. What is Node.js?

Both your browser JavaScript and Node.js run on the V8 JavaScript runtime engine. This engine takes your JavaScript code and converts it into faster machine code. Machine code is low-level code which the computer can run without needing to first interpret it.

Node.js uses an event-driven, non-blocking I/O model that makes it lightweight and efficient.

Something that has happened in our app that we can respond to. There are two types of events in Node.

  • System Events: C++ core from a library called libuv. (For example, finished reading a file).
  • Custom Events: JavaScript core.

There are a ton of resources you can use learn more about Node.js, including this one.

And we recommend reading the checklist of 23 Node.js. security best practices that were collected from all top-ranked articles around the globe.

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