Character counting string

You are given a string s. Your task is to count the number of characters in the string and return the total amount of characters in the string with the type u32.

Example

let s = "hello";
let result = character_counting_string(s);
assert_eq!(result, 5);

Hints

You can use the chars() method to get an iterator over the characters in the string.
You can use the count() method to count the number of elements in the iterator.

The count() method returns a usize which is the number of elements in the iterator. In the challenge you are asked to return a u32, you can use the as keyword to convert the usize to a u32. For example, let count_u32 = count as u32;

Editor not available on Mobile!

In order to solve the challenge, please visit this page on a desktop computer.

Solutions

ogaca42

2 hours ago

2.38ms

81.43kb

pub fn count_characters(s: &str) -> u32 {
    // Count the number of characters in the string
    s.chars().count() as u32
}

oTTeuM

oTTeuMsTudio

4 hours ago

2.42ms

81.43kb

pub fn count_characters(s: &str) -> u32 {
    // Count the number of characters in the string
    s.len() as u32
}

Maxence Potier

Mxn-ptr

5 hours ago

2.49ms

81.43kb

pub fn count_characters(s: &str) -> u32 {
    // Count the number of characters in the string
    s.len() as u32
}

ShileiShen

5 hours ago

2.23ms

81.43kb

pub fn count_characters(s: &str) -> u32 {
    // Count the number of characters in the string
    s.chars().count() as u32
}

jamtg

6 hours ago

2.32ms

81.43kb

pub fn count_characters(s: &str) -> u32 {
    // Count the number of characters in the string
    s.chars().count() as u32
}

jamtg

6 hours ago

2.50ms

81.43kb

pub fn count_characters(s: &str) -> u32 {
    // Count the number of characters in the string
    s.chars().count() as u32
}

Daniel Yan

yansq

8 hours ago

2.43ms

81.43kb

pub fn count_characters(s: &str) -> u32 {
    // Count the number of characters in the string
    s.len() as u32
}

ctylx

10 hours ago

2.34ms

81.43kb

pub fn count_characters(s: &str) -> u32 {
    // Count the number of characters in the string
    s.chars().count() as u32
}

Gear

macgeargear

11 hours ago

2.43ms

81.43kb

pub fn count_characters(s: &str) -> u32 {
    // Count the number of characters in the string
    // s.len() as u32
    s.chars().count() as u32
}

Gear

macgeargear

11 hours ago

2.34ms

81.43kb

pub fn count_characters(s: &str) -> u32 {
    // Count the number of characters in the string
    s.len() as u32
}

funny_233

funny233-github

11 hours ago

2.21ms

81.43kb

pub fn count_characters(s: &str) -> u32 {
    // Count the number of characters in the string
    s.to_owned().len() as u32
}

zelsazgh

13 hours ago

2.29ms

81.43kb

pub fn count_characters(s: &str) -> u32 {
    // Count the number of characters in the string
    let c = s.chars().count();
    c as u32
}

VladyslavY

16 hours ago

2.41ms

81.43kb

pub fn count_characters(s: &str) -> u32 {
    s.chars().count() as u32
}

José Bernardo

jose-bernardo

17 hours ago

2.19ms

81.43kb

pub fn count_characters(s: &str) -> u32 {
    // Count the number of characters in the string
    s.len() as u32
}

José Bernardo

jose-bernardo

17 hours ago

2.21ms

81.43kb

pub fn count_characters(s: &str) -> u32 {
    // Count the number of characters in the string
    s.len() as u32
}

Tiago Silva

tiagombsilva

20 hours ago

2.41ms

81.43kb

pub fn count_characters(s: &str) -> u32 {
    s.chars().count() as u32
}

Delta Regeer

digitalresistor

20 hours ago

2.35ms

81.43kb

pub fn count_characters(s: &str) -> u32 {
    s.chars().count().try_into().unwrap()
}

Carlos Arias

carlos-quantexai

21 hours ago

2.29ms

81.43kb

pub fn count_characters(s: &str) -> u32 {
    // Count the number of characters in the string
    let mut result = 0;
    for i in s.chars(){
        result += 1;
    }
    result as u32
}

Maki-SIO

a day ago

2.63ms

81.43kb

pub fn count_characters(s: &str) -> u32 {
    s.chars().count() as u32
}

Logan Radloff

radloffl

a day ago

2.32ms

81.43kb

pub fn count_characters(s: &str) -> u32 {
    // Count the number of characters in the string
    s.chars().count() as u32
}

retinotopic

a day ago

2.33ms

81.43kb

pub fn count_characters(s: &str) -> u32 {
    let mut sum: u32 = 0;
    for c in s.chars() {
        sum+=1;
    }
    return sum;
}

今何求

jhq223

2 days ago

2.34ms

81.43kb

pub fn count_characters(s: &str) -> u32 {
    s.to_string().chars().count() as u32
}

Will Barnett

xbarnett

2 days ago

2.23ms

81.43kb

pub fn count_characters(s: &str) -> u32 {
    // Count the number of characters in the string
    s.len() as u32
}

Mikhail

mk-comm

2 days ago

2.20ms

81.43kb

pub fn count_characters(s: &str) -> u32 {
    // Count the number of characters in the string
    s.chars().count() as u32
}

Johnchoi913

2 days ago

2.22ms

81.43kb

pub fn count_characters(s: &str) -> u32 {
    // Count the number of characters in the string
    s.chars().count() as u32
}

majesticalcreature

2 days ago

2.49ms

81.43kb

pub fn count_characters(s: &str) -> u32 {
    // Count the number of characters in the string
    s.chars().count() as u32
}

Matei Stefanescu

matei

2 days ago

2.30ms

81.43kb

pub fn count_characters(s: &str) -> u32 {
    // Count the number of characters in the string
    s.chars().count() as u32
}

sander-b-postnl

2 days ago

2.26ms

81.43kb

pub fn count_characters(s: &str) -> u32 {
    s.len() as u32
}

Edoardo A. Morosanu

edoardo-morosanu

2 days ago

2.28ms

81.43kb

pub fn count_characters(s: &str) -> u32 {
    s.len() as u32
}

i5.650

i5-650

2 days ago

2.34ms

81.43kb

pub fn count_characters(s: &str) -> u32 {
    s.len() as u32
}

amassare

2 days ago

2.28ms

81.43kb

pub fn count_characters(s: &str) -> u32 {
    // Count the number of characters in the string
    s.chars().count() as u32
}

Oleksandr Romanov

alexromanov

2 days ago

2.29ms

81.43kb

pub fn count_characters(s: &str) -> u32 {
    // Count the number of characters in the string
    let mut n = 0;
    for c in s.chars() {
        n += 1;
    }
    n
}

Zava

zavakid

2 days ago

2.24ms

81.43kb

pub fn count_characters(s: &str) -> u32 {
    // Count the number of characters in the string
    s.chars().count() as u32
}

Ryumin

RiskyRomero

2 days ago

2.25ms

81.43kb

pub fn count_characters(s: &str) -> u32 {
    // Count the number of characters in the string
    s.chars().count().try_into().unwrap()
}

IdoPort

2 days ago

2.29ms

81.43kb

pub fn count_characters(s: &str) -> u32 {
    // Count the number of characters in the string
    s.chars().count() as u32
}

Ustin

2 days ago

2.36ms

81.43kb

pub fn count_characters(s: &str) -> u32 {
    s.chars().count() as u32
}

Laurențiu STOLERIU

LaurentiuStoleriu

3 days ago

2.26ms

81.43kb

pub fn count_characters(s: &str) -> u32 {
    // Count the number of characters in the string
    let numar = s.chars().count();
    return numar as u32
}

至尊宝

shankun

3 days ago

2.35ms

81.43kb

pub fn count_characters(s: &str) -> u32 {
    s.chars().count() as u32
}

Parallaxes

3 days ago

2.29ms

81.43kb

pub fn count_characters(s: &str) -> u32 {
    // Count the number of characters in the string
    s.len() as u32
}

Dylan Park

dylan-park

3 days ago

2.26ms

81.43kb

pub fn count_characters(s: &str) -> u32 {
    s.len() as u32
}

Xinoi

3 days ago

2.38ms

81.43kb

pub fn count_characters(s: &str) -> u32 {
    // Count the number of characters in the string
    s.chars().count() as u32
}

Jonathan Lopez

otherJL0

3 days ago

2.32ms

81.43kb

pub fn count_characters(s: &str) -> u32 {
    s.len() as u32
}

Stefano Cianciulli

CianciuStyles

3 days ago

2.58ms

81.43kb

pub fn count_characters(s: &str) -> u32 {
    // Count the number of characters in the string
    s.chars().count() as u32
}

Ayush Rawat

ayushrawat10

3 days ago

2.28ms

81.43kb

pub fn count_characters(s: &str) -> u32 {
    s.len() as u32
}

Patrik Bjärterot

pbjarterot

3 days ago

2.42ms

81.43kb

pub fn count_characters(s: &str) -> u32 {
    // Count the number of characters in the string
    s.chars().count() as u32
}

masteryachty

3 days ago

2.25ms

85.89kb

pub fn count_characters(s: &str) -> u32 {
    // Count the number of characters in the string
    s.chars().count() as u32
}

damascussteel21

3 days ago

2.35ms

81.43kb

pub fn count_characters(s: &str) -> u32 {
    // Count the number of characters in the string
    s.len() as u32
}

Joel Vicente Filho

kyhou

4 days ago

2.34ms

81.43kb

pub fn count_characters(s: &str) -> u32 {
    s.chars().count() as u32
}

Ojash Neopane

oneopane

4 days ago

2.36ms

81.43kb

pub fn count_characters(s: &str) -> u32 {
    // Count the number of characters in the string
    s.chars().count() as u32
}

Jiawei Tian

AtJiawei

4 days ago

2.15ms

81.43kb

pub fn count_characters(s: &str) -> u32 {
    // Count the number of characters in the string
    s.chars().count() as u32
}