What is javascript runtime..? [duplicate]
Maybe it's referring to Google's V8 engine.
- It is an engine for processing JavaScript in the browser and is used by Google Chrome.
- It's open source.
- And it's written in C++.
- It works on several platforms including mobile and embedded devices.
For more information see: https://code.google.com/p/v8/
If you google for "chrome javascript runtime", you will get all these links to V8.
Chrome's javascript runtime is Google's V8 engine which was developed by Google to be used with Google Chrome.
It compiles the javascript code to native machine code instead of interpreting bytecode which gives a major performance boost to javascript (which is traditionally very slow compared to other high level languages).
Node.js contains libuv to handle asynchronous events. V8 provides the run-time for JavaScript.
It is a virtual machine which interprets and executes JavaScript mostly on browser. In fact Node.js is a javascript runtime based library.