Question

How to iterate over array with indexes and values in Rust

Answer 1

fn main() {
    let arr = ["rust", "c", "c++", "java"];
    
    for (i, v) in arr.iter().enumerate() {
        println!("index {} = {}", i, v);
    }
}



/*
run:

index 0 = rust
index 1 = c
index 2 = c++
index 3 = java

*/

 

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Answer 2

fn main() {
    let arr = ["rust", "c", "c++", "java", "c#"];
    
    arr.iter().enumerate().for_each(|(i, v)| {
        println!("index {} = {}", i, v);
    });
}



/*
run:

Item 0 = rust
Item 1 = c
Item 2 = c++
Item 3 = java
Item 4 = c#

*/

 

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