Rust Iterators for Beginners | map, filter, fold Explained

Master Rust iterators! Learn how to process data efficiently with iter(), map(), filter(), fold(), and more.

🦀 What You'll Learn:
━━━━━━━━━━━━━━━━━━━━━
00:00 - Introduction
00:30 - Iterator Basics (iter, next, for loops)
03:30 - Transform Methods (map, filter, collect)
06:30 - Advanced Iterators (fold, enumerate, take, skip)
08:30 - Recap & What's Next

📚 Key Concepts Covered:
• Creating iterators with iter() and into_iter()
• Using next() to get elements one by one
• map() - transform each element
• filter() - keep matching elements
• fold() - reduce to a single value
• enumerate() - get index with value
• take() and skip() - control iteration

💻 Code Examples:

Iterator basics:
let mut iter = numbers.iter();
println!("{:?}", iter.next()); // Some(1)

Map and filter:
let doubled: Vec of i32 = numbers
.iter()
.map(|x| x * 2)
.collect();

Fold to sum:
let sum = numbers.iter().fold(0, |acc, x| acc + x);

🔗 Resources:
• Rust Iterator Docs: https://doc.rust-lang.org/std/iter/tr...
• Source Code: https://github.com/somaria/yt_gen_ai

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