How to get the length of a Vector in Rust

In this tutorial, we are going to learn about how to get the length of a Vector in Rust language.

The length of a vector means the total number of elements present in a given vector.

In Rust, vectors are used to store the data of same datatype.

Getting the vector length

To get the length of a vector, we can use the built in len() method in Rust.

Here is an example, that gets the length of a vector stored in the price variable.

let mut price = vec![4, 5, 6, 7];

println!("Length is: {}", price.len())

Output:

Length is 4