How to get the length of vector in Rust?

In Rust vectors has a built in function that retrieve the length of vectors, the function is len().

Example of how to get the length of vector

fn main() {
    let a = vec![1, 2, 3];
    println!("Vector a length is = {} ", a.len());
}

Output

Vector a length is = 3

Conclusion

In this page (written and validated by A. Gawali) you learned about How to get the length of vector in Rust? . What's Next? If you are interested in completing Rust tutorial, we encourage you simply to start here: Rust Tutorial.

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