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.

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Solutions

Jim Lawton

jimlawton

4 hours ago

2.81ms

81.43kb

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

Esteban Soba

XtebanUy

6 hours ago

3.05ms

81.43kb

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

5822791760

11 hours ago

3.13ms

81.43kb

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

woke-developer

13 hours ago

2.95ms

81.43kb

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

Markus Bergkvist

mbergkvist

13 hours ago

2.79ms

81.43kb

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

leenalmajz

14 hours ago

3.43ms

81.43kb

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

facat

16 hours ago

3.80ms

81.43kb

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

Ando “Thor” Nando

DivineGod

a day ago

3.35ms

81.43kb

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

Andreas

StimhackSoftware

a day ago

4.52ms

86.72kb

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

mehdihmr

a day ago

3.15ms

81.43kb

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

Mister Woody

MisterWoody

a day 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
}

DistributedDoge

a day ago

4.20ms

81.43kb

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

Ethel Arterberry

ethel-dev

2 days ago

3.76ms

81.43kb

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

Algorab

2 days ago

3.43ms

81.43kb

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

Johannes Pfabe

Hannnsen

2 days ago

3.28ms

81.43kb

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

Stefan Roas

sroas

2 days ago

2.91ms

81.43kb

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

Itay

itaygenkin

2 days ago

3.53ms

81.43kb

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

Felipe Balbi

felipebalbi

2 days ago

3.97ms

81.43kb

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

Daniel Petrov

danielmpetrov

2 days ago

3.62ms

81.43kb

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

yoakemae

3 days ago

3.16ms

81.43kb

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

tinthid

3 days ago

3.67ms

81.43kb

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

qiyuan711

3 days ago

3.52ms

81.43kb

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

Jan Willems

3 days ago

2.95ms

81.43kb

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

Nicky Thorne

nickythorne

3 days ago

12.11ms

81.43kb

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

Philip Mercer

DV-13

4 days ago

4.25ms

81.43kb

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

xiuchiliudu

4 days ago

3.20ms

81.43kb

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

martin-unit

4 days ago

3.15ms

81.43kb

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

RonaldoArayadev

4 days ago

6.84ms

81.43kb

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

vrzwflng

4 days ago

2.91ms

81.43kb

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

Jörg Erdmenger

joeslow

4 days ago

4.02ms

81.43kb

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

Elizabeth Doughty

Thymelizabeth

4 days ago

3.37ms

81.43kb

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

s.konishi

konishu

5 days ago

3.90ms

81.43kb

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

Masayuki Sunahara

tamanishi

5 days ago

2.96ms

81.43kb

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

devarajang

5 days ago

3.58ms

81.43kb

pub fn count_characters(s: &str) -> u32 {
    // Count the number of characters in the string
    let iter1 = s.chars();
    return iter1.count() as u32;
}

nichideropa

5 days ago

3.13ms

81.43kb

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

nichideropa

5 days ago

3.83ms

81.43kb

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

Jan

jeypiti

6 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
}

stefafafan

6 days ago

3.07ms

81.43kb

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

0xsmarter

6 days ago

2.94ms

81.43kb

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

t3stlab

6 days ago

3.06ms

81.43kb

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

aidan1magee

6 days ago

5.31ms

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
}

tsuchiya-d

tsucchinoko

7 days ago

5.37ms

81.43kb

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

Ankeet Parikh

ankeetparikh

7 days ago

3.22ms

81.43kb

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

maxvi

7 days ago

3.95ms

81.43kb

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

Lauri Sarap

LauriSarap

8 days ago

3.27ms

81.43kb

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

Rafael Lucas

rafaellucasprogm

8 days ago

4.37ms

81.43kb

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

Rafael Lucas

rafaellucasprogm

8 days ago

4.63ms

81.43kb

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

Rocky.C

cloki0610

8 days ago

3.23ms

81.43kb

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

Denis SOURON

Brack0

9 days ago

3.69ms

81.43kb

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

risemacro

9 days ago

4.63ms

81.43kb

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