CODEWITHSUNDEEP
javascript
user4833678
user4833678

Reputation:

Splitting sentence into array of words

folks, I'm trying to find out what word is the longest in an entered sentence but the code is not outputting anything. Could smb please help me with that? 

<!DOCTYPE html>
<html>
<head lang = "en">
    <meta charset = "UTF-8">
    <title>LongestWord</title>
</head>
<body>
<script language = "Javascript" type = "text/javascript">
    var sentence = prompt("Enter sentence: ");
    var splitted = sentence.split("\\s+");
    var longestWord = splitted[0];

    for(var i = 0; i < splitted.length; i++){
        for(var j = 0; j < splitted[i].length - 1; j++){
            if(longestWord.length < splitted[i].length){
                longestWord = splitted[i];
            }

        }
    }
    document.write("The longest word in the sentence is " + longestWord);  
</script>
</body>
</html>

Upvotes: 1

Views: 8850

Answers (4)

Dunn
Dunn

Reputation: 11

You could make a compare function for the sort() function easily. This way you can check if there is more than one word that matches the length of the longest word, by popping the resulting sorted array.

function compare_words(a, b) { return a.length - b.length; }

var words = ["Hello", "here", "are", "some", "words", "of", "variable", "length"];

console.log("Longest word is: " + words.sort(compare_words).pop());

Upvotes: 0

DRD
DRD

Reputation: 5813

Change your regexp code to:

var splitted = sentence.split(/\s+/);

EDIT: below is a slightly different take on the function:

function longestWord(str) {
    return str.split(/\s+/).sort(function(w1, w2) {return w2.length - w1.length;})[0];    
}

var phrase = "dmitriy nesterkin drd";
console.log(longestWord(phrase));

Upvotes: 6

Joseph
Joseph

Reputation: 119847

Here's a simplified version, using split and reduce. First spotted word prevails.

var longestWord = sentence.split(' ').reduce(function(longestWord, word){
  return word.length > longestWord.length ? word : longestWord;
}, '');

Upvotes: 0

ChadF
ChadF

Reputation: 1758

var length = 0;
var longestWord = "";
sentence.split(" ").forEach(function(word){
  if(word.length > length) {
    length = word.length;
    longestWord = word;
  }
});
document.write("The longest word in the sentence is " + longestWord);

Upvotes: 0

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