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sure! let's dive into rust and explore iteration, focusing on how to use loops, iterators, and common iteration patterns. this crash tutorial is designed for beginners and will include explanations as well as code examples.

introduction to iteration in rust

in rust, iteration can be accomplished using several constructs. the most common ways to iterate through collections (like arrays, vectors, etc.) include:

1. *looping with `loop`*
2. *using `for` loop*
3. *using iterators with methods like `map`, `filter`, and `collect`*

1. the `loop` keyword

the `loop` keyword creates an infinite loop. you can use `break` to exit the loop.

*example:*



*output:*


2. the `for` loop

the `for` loop is the most common way to iterate over a range or a collection in rust.

*example: iterating over a range*



*output:*


*example: iterating over a vector*



*output:*


3. using iterators

rust provides powerful iterator methods that allow for functional-style programming. common methods include `map`, `filter`, and `collect`.

example: using `map` and `collect`



*output:*


example: using `filter`



*output:*


4. using `while` loop

you can also use a `while` loop to iterate as long as a condition is true.

*example:*



*output:*


conclusion

in this tutorial, we covered the basics of iteration in rust. we looked at:

using `loop` for infinite loops.
using `for` loops to iterate over ranges and collections.
using iterators and functional programming methods like `map`, `filter`, and `collect`.

with these tools, you can efficiently iterate over data structures and perform complex transformations in rust. happy coding!

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