Crust of Rust: Iterators

In this third Crust of Rust video, we cover iterators and trait bounds, by re-implementing the “flatten” Iterator method from the standard library. As part of that, we cover some of the weirder trait bounds that are required, including what’s needed to extend the implementation to support backwards iteration.

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ULTIMATE Rust Lang Tutorial! - Iterators in Rust

The ultimate Rust lang tutorial. Follow along as we go through the Rust lang book chapter by chapter.

📝Get the FREE Rust Cheatsheet: https://letsgetrusty.com/cheatsheet

The Rust book: https://doc.rust-lang.org/stable/book/​​

Chapters:
0:00​ Intro
0:33 Processing Items with Iterators
2:32 Iterator Trait and the next Method
4:39 Methods that Consume the Iterator
5:31 Methods that Produce Other Iterators
6:24 Closures that Capture Their Environment
8:42 Creating Our Own Iterators
12:48 Outro

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Processing a Series of Items with Iterators in Rust

Iterators are objects that produce sequences of values, so they can be iterated or looped over. Or, in other words, every time you ended up using a for loop in your program, you were most likely interacting with some kind of iterator.

Hello, folks! your wait is over, we have come up with a new blog. In this blog, we will discuss Iterators to process of series of items and its use cases in Rust programming language with the help of a sample example. I hope you will enjoy the blog.

Iterators:

An Iterators is responsible for the logic of iterating over each item and determining when the sequence has finished. When you use iterators, you don’t have to re-implement that logic yourself.

In Rust, iterators are lazy, meaning they have no effect until you call methods that consume the iterator to use it up.

Lets creates an iterator over the items in the vector vector by calling the iter method defined on Vec<T>.

fn main() {
    let vector = vec![1, 2, 3];

    let vector_iter = vector.iter();
}

Once we’ve created an iterator, we can use it in a variety of ways. like in for loop to execute some code on each item.

For example:

fn main() {
    let vector = vec![1, 2, 3];

    let vector_iter = vector.iter();

    for val in vector_iter {
        println!("value form the vector: {}", val);
    }
}

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ULTIMATE Rust Lang Tutorial! - Publishing a Rust Crate

The ultimate Rust lang tutorial. Follow along as we go through the Rust lang book chapter by chapter.

📝Get the FREE Rust Cheatsheet: https://letsgetrusty.com/cheatsheet

The Rust book: https://doc.rust-lang.org/stable/book/​​

Chapters:
0:00​ Intro
0:43 Release Profiles
3:00 Documentation Comments
4:32 Commonly Used Sections
5:04 Documentation Comments as Tests
5:50 Commenting Contained Items
6:29 Exporting a Public API
8:44 Setting up Creates.io Account
9:54 Adding Metadata to a New Create
12:14 Publishing to Crates.io
12:49 Removing Version from Crates.io
13:37 Outro

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Learn to Iterators - Rust

Chapter 13.2+

• The Rust Programming Language Book: https://doc.rust-lang.org/book/

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• Extra resources:

1. https://doc.rust-lang.org/rust-by-example/trait/iter.html
2. https://doc.rust-lang.org/std/iter/trait.Iterator.html

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Javascript ES6 Iterators: Complete Guide on Iterables and Iterators

Javascript iterators is a new concept of ES6 in which it processes each of the items in the collection, which is a pervasive operation. Iterators are a new way to _loop _over any collection in JavaScript.

They were introduced in ES6 and have become popular since they are widely JavaScript provides several ways of iterating over the collection, from simple for loops to map() and filter() Iterators and  Generators bring the concept of iteration directly into the core language and provide a mechanism for customizing the behavior of loops.

Iterators in Javascript

An iterator is a new concept of ES6. An Iterator is an object that lets us iterate through an Array, an Object, a String, or even custom Objects.

The Iterator allows us to effectively loop over a collection of objects like an array, string, objects, or other data structures.

The most common Iterator in Javascript is the Array iterator, which returns each value in the associated array in sequence.

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