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;

Don't use len() : This length is in bytes, not [char]s or graphemes. In other words, it might not be what a human considers the length of the string.

Editor not available on Mobile!

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

Solutions

Deaddy3

19 minutes ago

3.29ms

81.43kb

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

tanogedler

11 hours ago

3.50ms

81.43kb

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

Dyaa Adel

dyaa-adel

20 hours ago

3.28ms

81.43kb

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

MESTRE Sylvain

Shult

21 hours ago

3.07ms

81.43kb

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

Anıl Şenay

anilsenay

a day ago

2.98ms

81.43kb

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

Tobi2o

a day ago

6.06ms

81.43kb

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

Evan

0xIchigo

a day ago

2.94ms

81.43kb

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

KiwiGolden-rs

2 days ago

3.07ms

81.43kb

pub fn count_characters(s: &str) -> u32 {
    // Count the number of characters in the string
    let count_u32 = s.chars().count() as u32;
    count_u32
}

EduardoFernandess

2 days ago

3.00ms

81.43kb

pub fn count_characters(s: &str) -> u32 {
    // Count the number of characters in the string
   let count = s.chars().count();
   let count_u32 = count as u32;
   count_u32
}

Tomaz Azinhal

tomazinhal

2 days ago

3.01ms

81.43kb

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

Jordan

Jordan-Haidee

2 days ago

3.21ms

81.43kb

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

Kyle Diaz

kylediaz

3 days ago

2.95ms

81.43kb

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

Mojitzu

3 days ago

2.98ms

81.43kb

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

Hanz

HanzCEO

3 days ago

2.82ms

81.43kb

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

norabbito

3 days ago

4.26ms

81.43kb

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

BeeeeeMo

3 days ago

3.16ms

81.43kb

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

Code AJ

codeaj001

4 days ago

3.25ms

81.43kb

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

SeinPierre

4 days ago

3.30ms

81.43kb

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

Léa Narzis

lean-apple

4 days ago

3.10ms

81.43kb

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

McToady.eth

McCoady

4 days ago

2.97ms

81.43kb

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

Mehdi Tehrani

mnadjit

4 days ago

3.74ms

81.43kb

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

happines

rhithesh

4 days ago

3.13ms

81.43kb

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

TiagONTOP

5 days ago

2.93ms

81.43kb

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

Robin Le Caignec

Le-Caignec

5 days ago

2.94ms

81.43kb

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

Rafik

RafikGadzhiyev

5 days ago

5.19ms

81.43kb

pub fn count_characters(s: &str) -> u32 {
    return s.chars().count() as u32;
    // let mut characters_count = 0;
    // for _ in s.chars() {
    //     characters_count += 1;
    // }
    // return characters_count;
}

Nuttapon Suta

ChilG

5 days ago

3.25ms

81.43kb

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

Danny Burnett

danjambur

6 days ago

3.11ms

81.43kb

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

Jaded

jaded-it

6 days ago

6.88ms

81.43kb

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

risemacro

6 days ago

3.92ms

81.43kb

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

parthabodhi

6 days ago

4.35ms

81.43kb

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

Icarus

IcarusxB

6 days ago

2.97ms

81.43kb

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

Pavel

webxed

6 days ago

2.87ms

81.43kb

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

vojta stefan

vojtastefan

7 days ago

3.51ms

81.43kb

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

vojta stefan

vojtastefan

7 days ago

3.21ms

81.43kb

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

Whisper_icoma

1378046967

7 days ago

2.93ms

81.43kb

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

Marcos G. S. C. Sete

MarcosSete

7 days ago

3.72ms

87.16kb

pub fn count_characters(s: &str) -> u32 {
    // Count the number of characters in the string
    for i in s.chars(){
        println!("{}",i);
    }
    
    let a: u32 = s.chars().count() as u32;
    a
}

Christopher Kolbe

chkolbe

7 days ago

4.06ms

81.43kb

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

Andrew Thomas

ch00kz

7 days ago

3.42ms

81.43kb

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

Manu

wirew0lf

8 days ago

3.35ms

81.43kb

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

automata-studio

8 days ago

3.27ms

81.43kb

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

automata-studio

8 days ago

16.69ms

81.43kb

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

Adnan Joraid

ajoraid

8 days ago

3.14ms

81.43kb

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

Patrick Yu

PatrickYu17

9 days ago

2.82ms

81.43kb

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

Oleh Pidhriniak

olehpidhi

9 days ago

3.00ms

81.43kb

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

Guilherme Cesário Strachan

strachan

9 days ago

2.97ms

81.43kb

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

ahmedzghal

9 days ago

3.08ms

81.43kb

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

Matheus Assis

Math-SA

9 days ago

4.75ms

85.89kb

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

Dimas Avrian Fachriza.

FForFachriza

9 days ago

3.18ms

81.43kb

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

Evgenii Uglanov

winchest3r

9 days ago

3.19ms

81.43kb

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

TeDeMos

10 days ago

3.77ms

81.43kb

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