Trusted answers to developer questions
How to get the length of a string in Rust
okwudili onyejiaku
Overview
The length of a string is the number of characters that make up that string. We can get the length of a string in Rust using the len() method.
Syntax
string.len()
Syntax for len method in Rust
Parameters
string: This is the string whose length we want to get.
Return value
The value returned is a number representing the length of the string specified.
Code
fn main() {
// create some strings
let str1 = "Edpresso";
let str2 = "Educative";
let str3 = "Rust";
let str4 = "Educative is the best platform!";
// print the length of the strings
println!("The length of {} is {}", str1, str1.len());
println!("The length of {} is {}", str2, str2.len());
println!("The length of {} is {}", str3, str3.len());
println!("The length of {} is {}", str4, str4.len());
}Get the length of a string in Rust
Explanation
In the above code:
- Lines 3–6: We create some string variables and initialize them.
- Lines 9–12: We retrieve the length of each string with the
len()method, and with theprintln!()method, we print the result to the console.
RELATED TAGS
length
string
rust
communitycreator
CONTRIBUTOR
okwudili onyejiaku
RELATED COURSES
View all Courses
Keep Exploring
Related Courses
