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

Matt Oldham

matt-o-zetland

10 hours ago

3.49ms

81.43kb

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

Taufiq Hisyam

ozmydas

a day ago

2.88ms

81.43kb

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

Eliettetheegeek

a day 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
}

iAfrika

a day ago

3.13ms

81.43kb

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

mwheeleraus

a day ago

3.95ms

81.43kb

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

Piotr Baranowski

piotrbar250

2 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
}

PreppyMiguel

lusuo9

2 days 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
}

Monsler

2 days ago

2.87ms

81.43kb

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

Islam Elsayed

Elsayed91

2 days ago

3.38ms

81.43kb

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

Martin He

martin-he543

2 days 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
}

Hariom

om-secadvice

3 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
}

Loki

Loki-101

4 days ago

3.52ms

81.43kb

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

jstickn

4 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
}

khadre07

4 days ago

2.78ms

81.43kb

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

Kourosh Mozafari

kmozafari

4 days ago

3.22ms

81.43kb

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

azmahflameheart

4 days ago

3.18ms

81.43kb

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

Álex Frías

alexwebdev05

4 days ago

4.27ms

81.43kb

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

Sukemcute

5 days ago

4.53ms

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
}

NAULINALBAN

5 days ago

3.24ms

81.43kb

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

Ayoola Oluwafemi

Osuolale1

5 days ago

2.94ms

81.43kb

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

emiludenz

5 days ago

2.83ms

81.43kb

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

Amlezia

5 days ago

3.11ms

81.43kb

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

Egu0

egu0

6 days ago

20.06ms

81.43kb

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

LawisChen

6 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
}

osseam

osseamdevel

6 days ago

3.22ms

81.43kb

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

Ludovic Frérot

leludo

6 days ago

3.06ms

81.43kb

pub fn count_characters(s: &str) -> u32 {
    // Count the number of characters in the string
    // convert the string to a char iterator and count the iterator's elements . return the count as u32
    s.chars().count() as u32
}

Sheren Yogesh Narayanan

Nsy97

7 days ago

2.99ms

81.43kb

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

Alexey Lisov

BaldiSlayer

7 days ago

3.00ms

81.43kb

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

Alexey Lisov

BaldiSlayer

7 days ago

2.99ms

81.43kb

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

Marouan Boulahtouf

MBoulahtouf

7 days ago

2.98ms

81.43kb

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

Trevor Hudson

trevorhudson

8 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
}

Ramon Silva

rsilva1

8 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
}

arameop

8 days ago

3.09ms

81.43kb

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

Özgür

AyikOzgur

8 days ago

3.19ms

81.43kb

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

eskildfi

8 days ago

3.03ms

81.43kb

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

James Meadows

jamesmeadows7

8 days ago

2.90ms

81.43kb

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

James Meadows

jamesmeadows7

8 days ago

3.75ms

81.43kb

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

Kelvin Muchiri

kelvin-muchiri

8 days ago

2.98ms

81.43kb

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

achot87

achottia

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
}

nbarbier-amira

8 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
}

Suki Madu

Suksman03

8 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
}

Timmy

sha2dow4

9 days ago

2.90ms

81.43kb

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

Timmy

sha2dow4

9 days ago

2.72ms

81.43kb

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

ffrie

9 days ago

3.45ms

81.43kb

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

Anthony Young

A-Young-Git

9 days ago

3.30ms

81.43kb

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

Nikita M

n-mark

9 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
}

murdurn

9 days ago

3.43ms

81.43kb

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

Hin Phansa

hinphansa

10 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
}

Snoweuph

snoweuph

10 days ago

2.93ms

81.43kb

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

penmanglewood

10 days ago

3.46ms

81.43kb

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