Node. js is a server-side JavaScript run-time environment . It’s open-source, including Google’s V8 engine, libuv for cross-platform compatibility, and a core library.
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JavaScript is the server-side language used to develop services for the Opera Unite feature of the Opera browser. This is a server built into the browser. The JavaScript API includes local file access to a virtual sandboxed file-system and persistent storage via persistent global variables .
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