JavaScript
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Why this exists Node is built on two ideas. The first is sequences of values : lines from a file, pages from an API, rows from a query. The second is events : a server that emits request, a stream that emits data and…
JavaScript Basics: Iterators, Generators, Async Iteration and EventEmitter
Two patterns behind much of Node: iterating lazily (iterators, generators, for await over paged results) and reacting to events (EventEmitter: on, once, off, the special error event, awaiting an event, and the listener-leak warning), each with real output.
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