For Loops with Range Expressions

Snippet

For Loops with Range Expressions

Rust for loops work with ranges using .. syntax. The range 0..5 produces values 0, 1, 2, 3, 4. You can also iterate over arrays using iter() and enumerate() to get both index and value.

snippet.rs

rust

fn main() {
    for i in 0..5 {
        println!("Count: {}", i);
    }
    
    let colors = ["Red", "Green", "Blue"];
    for (index, color) in colors.iter().enumerate() {
        println!("{}: {}", index, color);
    }
}

Breakdown

for i in 0..5

Iterates from 0 to 4 (exclusive end)

colors.iter().enumerate()

Creates an iterator that yields index and value pairs

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