[removed] find longest word in a string

Question

function longestWord(string) {
    var str = string.split(\" \");
    var longest = 0;
    var word = null;
    for (var i = 0; i < str.length - 1; i++) {
                


        

Answer 1

does this solve the problem??

function longestWord(string) {
    var str = string.split(" ");
    var longest = 0;
    var word = null;
    for (var i = 0; i <= str.length - 1; i++) {
        if (longest < str[i].length) {
            longest = str[i].length;
            word = str[i];
        }
    }
    return word;
}

document.write(longestWord("pride and prejudice"));

Answer 2

ForEach is faster in FF but slower in Chrome, but for loop with the cached length and function apply/call is quite faster in both FF and chrome.

Hope the below code helps:

function getLongest (arrStr) {
  var longest = 0, word;

  for(var i=0 , len = arrStr.length ; i < len ; i++){

    if(longest < arrStr[i].length) {
       longest = arrStr[i].length;
       word = arrStr[i];
    }

  }

  return word;
}

function isLongest (str) {
  var arrayStr = str.split(' ');
  return function(fn) {
    return fn.apply(this,[arrayStr]);
  }
}

isLongest("hello aaaaaaaaaaaaaaaaaaaaaaaaa bbb")(getLongest); //aaaaaaaaaaaaaaaaaaaaaaaaa

Answer 3

I find that the .map method here helps a lot (this is if you want the character count of the word, not the word itself):

 function findLongestWord(str) {   
   var array = str.split(/\s+/);
   var wordLength = array.map(function(i) {
     return i.length;                       
   });   
   var largest = Math.max.apply(Math, wordLength);   
   return largest; 
}

Answer 4

I will refer you to this awesome article which defines three ways:

1 - Find the Longest Word With a FOR Loop

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

2 - Find the Longest Word With the sort() Method

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");

3 - Find the Longest Word With the reduce() Method

function findLongestWord(str) {
  var longestWord = str.split(' ').reduce(function(longest, currentWord) {
    return currentWord.length > longest.length ? currentWord : longest;
  }, "");
  return longestWord.length;
}
findLongestWord("The quick brown fox jumped over the lazy dog");

Of course, it returns the length of the biggest word if you want to get the string, just get rid of the length in return part.

Answer 5

function sortNumber(a, b) {
return a - b;
}

function findLongestWordLength(str) {
var split = str.split(" ");
var arr=[];
for(var i=0;i<split.length;i++){
  arr.push(split[i].length);
  }
  arr.sort(sortNumber);
  console.log(arr[arr.length-1]);
  return(arr[arr.length-1]);
}

findLongestWordLength("What if we try a super-long word such as otorhinolaryngology");

Answer 6

const longestWord = string =>
{
    stringArray = string.split(' ').sort(
        (a,b) => b.length - a.length)
    let longestArray= stringArray.filter( word => word.length === stringArray[0].length ) 
    if(longestArray.length === 1){
        console.log(longestArray[0])
    }
    else
    {
        console.log(longestArray)
    }
}
longestWord("Pride and Prejudice")