rustHow do you get the number of characters in a Rust string?

You can get the number of characters in a Rust string using the len() method. This method returns the length of the string as an usize type.

Example code

let my_string = "Hello World!";
let length = my_string.len();
println!("The length of '{}' is {}.", my_string, length);

Output example

The length of 'Hello World!' is 12.

Code explanation

• let my_string = "Hello World!";: This line declares a string variable my_string and assigns it the value "Hello World!".
• let length = my_string.len();: This line calls the len() method on the my_string variable and assigns the result to the length variable.
• println!("The length of '{}' is {}.", my_string, length);: This line prints the length of the string to the console.

Helpful links

• Rust String Documentation

Edit this code on GitHub