Know Go: Iterators in Go
Iterators in Go yield results one at a time, enhancing efficiency. They are detailed in function signatures, error handling, composition, and library impact. Compared to channels, iterators offer simplicity and efficiency.
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The article discusses the concept of iterators in the Go programming language, focusing on the ability to yield one result at a time instead of generating and returning a whole set of results at once. Iterators are presented as functions with specific signatures that allow for efficient processing of elements as needed. The tutorial explains how iterators work under the hood, how to create two-result iterators, handle errors, compose iterators, and their potential impact on the standard library. A comparison is drawn between using iterators and channels in Go, highlighting the simplicity and user-friendliness of iterators for certain tasks. Overall, iterators are portrayed as a useful and efficient tool for iterating over elements in Go, offering a more straightforward alternative to channels in specific scenarios.
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