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

Matt Simpson

msmps

2 hours ago

2.91ms

81.43kb

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

André Decher

Wolfy7

3 hours 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
}

Paul Pavlov

ppavlovdev

4 hours 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
}

Antoine Plard

tylp

5 hours ago

3.29ms

81.43kb

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

buu

bushuai

8 hours ago

3.17ms

81.43kb

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

Ephraim

EphraimBsB

9 hours ago

3.38ms

81.43kb

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

Julien

jualexandre

9 hours ago

2.99ms

81.43kb

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

Beimodin

10 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
}

Elliott Draper

ejdraper

13 hours ago

3.92ms

81.43kb

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

Nicolas E. Sanchez

ndevc

16 hours ago

2.64ms

81.43kb

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

Suresh Prajapati

toddlers

a day ago

3.47ms

81.43kb

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

Anna Yamkovaya

anngoroshi

a day ago

3.76ms

81.43kb

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

Jeroen Rooijmans

jeroen-rooijmans

a day ago

3.09ms

81.43kb

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

area69base

2 days ago

5.67ms

81.43kb

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

Mohammed Omar Miraj

MOmarMiraj

2 days ago

5.64ms

81.43kb

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

medzernik

2 days ago

3.61ms

81.43kb

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

Jonathan Voss

jvoss

2 days ago

3.54ms

81.43kb

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

Viktor Merkurev

fennr

2 days ago

4.30ms

81.43kb

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

SCHTAMP

3 days ago

4.17ms

81.43kb

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

dawwestk

3 days ago

3.96ms

81.43kb

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

Todsaporn Banjerdkit

katopz

4 days ago

3.34ms

81.43kb

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

Christopher Nielson

c-nielson

4 days ago

3.23ms

81.43kb

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

Vladimir

PavluninVladimir

4 days 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
}

moo-9523

5 days ago

2.82ms

81.43kb

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

Simon Noetzlin

sainoe

5 days ago

3.40ms

81.43kb

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

Tplive

tplive

5 days ago

3.17ms

81.43kb

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

PangoSea

kapaseker

6 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
}

Long Xin Yi

longxinyi

6 days ago

3.24ms

81.43kb

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

Long Xin Yi

longxinyi

6 days ago

3.54ms

81.43kb

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

tzmijewski

6 days ago

3.78ms

81.43kb

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

rado31

6 days ago

5.47ms

81.43kb

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

B L I

blietaer

6 days ago

3.64ms

81.43kb

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

Tboot

tboot-0510

7 days 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
}

Jono Swift

jonoswift7

7 days ago

3.88ms

81.43kb

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

Dhananjay Pandit

djpandit007

7 days ago

4.60ms

81.43kb

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

Sakura

sakkura

8 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
}

mm-yyyy

9 days ago

3.32ms

81.43kb

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

Dominicm99

9 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
}

Ahmet Özcan

ahmetoozcan

9 days ago

4.84ms

81.43kb

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

Mikhail Shutov

mshutov

10 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
}

Bugra Okumus

bgraokmush

10 days ago

3.77ms

81.43kb

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

Pathan Khaleedh Khan

KhaleedhKhan

10 days ago

2.74ms

81.43kb

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

Jadoski™

oelun-in

10 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
}

vikingNR

11 days ago

4.03ms

81.43kb

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

PavelPerna

11 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
    
}

Sandeep chauhan

ryzen-xp

11 days ago

2.98ms

81.43kb

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

Tengz Mao

MaoX-Yu

12 days 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
}

matsuyama-k1

12 days ago

3.39ms

81.43kb

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

Stan

i2z4

12 days 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
}

rawar089

12 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
}