October 2019
Intermediate to advanced
444 pages
10h 37m
English
Content preview from Rust Programming Cookbook
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How it works...
Rust's iterators are heavily inspired by functional programming languages, which makes them very handy to use. As an iterator, every operation is applied sequentially one element at a time, but only as far as the iterator is moved forward. There are several types of operations shown in this recipe. The most important ones are as follows:
- map() operations execute a value or type transformation, and they are very common and easy to use.
- filter(), in the same way as many similar operations, executes a predicate (a function with a Boolean return value) in order to determine whether an element is to be included in the output. Examples are find(), take_while(), skip_while(), and any().
- Aggregation functions such as fold(), sum() ...
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