find the longest word in an array javascript code example

Example 1: find length of longest string in array javascript

const findLongest = words => Math.max(...(words.map(el => el.length)));

// Example
findLongest(['always','look','on','the','bright','side','of','life']);  // 6

Example 2: js find longest word in string function

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

Example 3: javascript find the longest word in a string

function findLongestWordLength(str) {
    let words = str.split(' ');
    let maxLength = 0;
  
    for (let i = 0; i < words.length; i++) {
      if (words[i].length > maxLength) {
        maxLength = words[i].length;
      }
    }
    return maxLength;
  }
  
  
findLongestWordLength("The quick brown fox jumped over the lazy dog");

// 6

Example 4: javascript find the longest string in array

Math.max(...(x.map(el => el.length)));

Example 5: js find longest vword

function findLongestWord(str) {
  var longestWord = str.split(' ').sort(function(a, b) { return b.length - a.length; });
  return longestWord[0].length;
}
findLongestWord("The quick brown fox jumped over the lazy dog");