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javascript find the longest word in a string

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codeager answered on July 24, 2020 Popularity 9/10 Helpfulness 3/10

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javascript find the longest word in a string

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let str = 'Sleep is critical for good health. Not getting enough sleep can lead \
to diminished brain performance and, in the long term, greater risk of \
health conditions. These include heart disease, stroke, and diabetes';

function findWordsByLen(str, len) {
  const punctuationReg = /[.:;,?!"`~[\]{}()<>/@#$%^&*=+_-]/g;
  const words = str
	.replaceAll(/\s{2,}/g, ' ')
	.replaceAll(punctuationReg, '')
	.split(' ');

  let wordsByLen = words.reduce((acc, word) => {
    let wordLen = word.length;
    if (!acc.has(wordLen)) acc.set(wordLen, new Set());
    acc.get(wordLen).add(word);
    return acc;
  }, new Map());

  const maxLen = Math.max(...wordsByLen.keys());
  const minLen = Math.min(...wordsByLen.keys());

  switch(len) {
  case 'all':
    return wordsByLen;
  case 'max':
    return wordsByLen.get(maxLen);
  case 'min':
    return wordsByLen.get(minLen);
  }

  if (Number.isInteger(len) && wordsByLen.has(len)) return wordsByLen.get(len)
  else return `The string doesn't have any words with a length of ${len}`

}

findWordsByLen(str, 'max');     // => Set(1) { 'performance' }
findWordsByLen(str, 'min');     // => Set(4) { 'is', 'to', 'in', 'of' }
findWordsByLen(str, 8);         // => Set(2) { 'critical', 'diabetes' }


findWordsByLen(str, 'all');
/* OUTPUT:
Map(9) {
  5 => Set(5) { 'Sleep', 'sleep', 'brain', 'These', 'heart' },
  2 => Set(4) { 'is', 'to', 'in', 'of' },
  8 => Set(2) { 'critical', 'diabetes' },
  3 => Set(5) { 'for', 'Not', 'can', 'and', 'the' },
  4 => Set(5) { 'good', 'lead', 'long', 'term', 'risk' },
  6 => Set(3) { 'health', 'enough', 'stroke' },
  7 => Set(4) { 'getting', 'greater', 'include', 'disease' },
  10 => Set(2) { 'diminished', 'conditions' },
  11 => Set(1) { 'performance' }
}
*/

Popularity 9/10 Helpfulness 3/10 Language javascript

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Tags: find grouping javascript shortest string word words

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Contributed on Feb 02 2022

codeager

0 Answers Avg Quality 2/10

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length of longest word js

Comment

Math.max(...str.split(" ").map(word => word.length))

Oneliner

Popularity 5/10 Helpfulness 7/10 Language javascript

Source: Grepper

Tags: javascript word

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Contributed on Aug 19 2023

ycomb1nator

0 Answers Avg Quality 2/10

longest word javascript

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function solution(text) {
    return text.match(/[a-zA-Z]+/g).sort((a, b) => b.length - a.length)[0];
}

Popularity 7/10 Helpfulness 6/10 Language javascript

Source: Grepper

Tags: javascript word wor

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Contributed on Sep 13 2022

JFS

0 Answers Avg Quality 2/10

js find longest word in string function

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function findLongestWordLength(str) {
  return Math.max(...str.split(' ').map(word => word.length));
}

Popularity 10/10 Helpfulness 5/10 Language javascript

Source: Grepper

Tags: find

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Contributed on Jul 24 2020

Tiger King

0 Answers Avg Quality 2/10

find longest word in string javascript

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 function data(str){
           var show = str.split(" ");
            show.sort(function (a,b){
                return b.length - a.length; 
            })
            return show[0];
      }
      console.log(data(str = "javascript is my favourite language "));

Popularity 10/10 Helpfulness 5/10 Language javascript

Source: Grepper

Tags: find

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Contributed on Oct 18 2020

Jerry

0 Answers Avg Quality 2/10

all longest strings javascript

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function solution(inputArray) {
    return inputArray.reduce((r, s, i) => {
        if (!i || r[0].length < s.length) {
            return [s];
        }
        if (r[0].length === s.length) {
            r.push(s);
        }
        return r;
    }, []);
}

Popularity 9/10 Helpfulness 1/10 Language javascript

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Tags: javascript j

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Contributed on Aug 18 2022

JFS

0 Answers Avg Quality 2/10

JS longest word

Comment

-1

const wordsArray = ['1', '22', '222', 'longstring', '2222']
const longestWord = wordsArray.reduce((longestWord, currentWord) =>
    currentWord.length > longestWord.length ? currentWord: longestWord, '');
console.debug(longestWord); // longstring

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Tags: javascript j

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Contributed on Jul 29 2021

Anxious Alpaca

0 Answers Avg Quality 2/10

find longest word in a string javascript

Comment

-1

function longestWord(string){
  let words = string.split(' ');
  let lengthArray = [];
  let maxNumber;
  let largestWord = '';
  
  for(let i = 0; i < words.length; i++){
    lengthArray.push(words[i].length);
  }
  
  maxNumber = Math.max(...lengthArray);
  
  largestWord = words[lengthArray.indexOf(maxNumber)];
  
  return largestWord;
}

let str = "The quick brown fox jumped over the lazy dogs";
let longWord = longestWord(str);

console.log(longWord); //output is jumped

Popularity 8/10 Helpfulness 1/10 Language javascript

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Tags: find javascript

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Contributed on Jul 09 2022

Helpful Herring

0 Answers Avg Quality 2/10

how to find the longest string in given string using js

Comment

-1

function longestWordLength(str) {
  return Math.max(...str.split(' ').map(word => word.length));
}

Popularity 7/10 Helpfulness 1/10 Language javascript

Source: www.samanthaming.com

Tags: find javascript ja

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Contributed on Nov 11 2022

afzal afzal

0 Answers Avg Quality 2/10

javascript find the longest word in a string

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