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[removed] find longest word in a string

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余生分开走
余生分开走 2020-11-27 03:50 
function longestWord(string) {
    var str = string.split(\" \");
    var longest = 0;
    var word = null;
    for (var i = 0; i < str.length - 1; i++) {
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  • 醉话见心
    2020-11-27 04:27 
    for (var i = 0; i < str.length - 1; i++)

    to

    for (var i = 0; i <= str.length - 1; i++)

    OR

    for (var i = 0; i < str.length; i++)
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  • 逝去的感伤
    2020-11-27 04:27

    I think this is more easy

    function findLongestWord(str) {
    var longestStr = 0;
    for (var x=0;x<str.split(' ').length;x++){
        if (longestStr < str.split(' ')[x].length){
            longestStr = str.split(' ')[x].length;
        }
    }
    return longestStr;
}
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  • 佛祖请我去吃肉
    2020-11-27 04:29

    Thanks everyone, this is the fixed code:

    function longestWord(string) {
    var str = string.split(" ");
    var longest = 0;
    var word = null;
    for (var i = 0; i < str.length; i++) {
        var checkedLetters = "";
        for (var j = 0; j < str[i].length; j++) {
            if (/[a-zA-Z]/.test(str[i][j])) {
                checkedLetters += str[i][j];
            }
        if (longest < checkedLetters.length) {
            longest = checkedLetters.length;
            word = checkedLetters;
            }
        }
    }
    return word;
}
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  • 你的背包
    2020-11-27 04:30

    That's because you're not comparing all the items in the array, you leave out the last one.

    for (var i = 0; i < str.length - 1; i++)

    should be

    for (var i = 0; i < str.length; i++)

    or

    for (var i = 0; i <= str.length - 1; i++)
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  • 夕颜
    2020-11-27 04:30

    I would say using the forEach loop is the most understandable version

    function longestWord(sen) {
  big_word = ""
  words = sen.split(" ")
  words.forEach(function(word){
    if (word.length > big_word.length){
        big_word = word
    };
  });
return big_word
};
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  • 时光取名叫无心
    2020-11-27 04:31

    Code below will find the largest word and its length from a string. Code is in plain JavaScript and html.

    function findLongestWord() {
  var str = document.getElementById('inputText').value;
  calculateLength(str);
}

function calculateLength(str) {
  var substring = str.split(" ");
  var minChar = '';
  for (var i = 0; i <= substring.length - 1; i++) {
    if (substring[i].length >= minChar.length) {
      minChar = substring[i];
    }
  }
  document.getElementById('longChar').innerHTML = 'Longest Word: ' + minChar;
  document.getElementById('longCharLength').innerHTML = 'Longest Word length: ' + minChar.length;
}
    <!doctype html>
<html lang="en">

<head>
</head>

<body>
  <input type="text" id="inputText"> <br/>
  <button onclick=findLongestWord()>Click to find longest              word</button> <br/>
  <div id="longChar"></div> <br/>
  <div id="longCharLength"></div>
</body>
<script src="longestWord.js"></script>

</html>

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