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Core concepts before we start
Introduction
●
v8 is the javascript runtime that sits in your chrome browser to execute the code in every web page
●
v8 isolate is a sandbox to run JS code in a secure and constrained environment (every chrome tab starts
a new v8 isolate)
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v8 bindings are the external references provided to v8 so that JS code can execute APIs provided by
native side - e.g. if you do a TCP listen in JS, which will call something like an “op_listen” from C++ code.
●
promise is a value that could be resolved (or rejected) in a future time
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async/await is syntactic sugar for using promise in “blocking”, non-callback manner
Architecture of Nodejs
Introduction
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V8 as the JS execution engine
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Node bindings to provide the
server side operations for JS code
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Libuv to handle the event loop for
resolving promises (callbacks)
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Libio to handle thread pool
●
Stdlib as a common foundation for
user applications.
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