编写并测试一个接受字符串数组并返回数组中最长单词的函数

Question

Example of what the function should output => maxWord(["The", "Albatross", "just", "ate", "your", "lunch"]) => "Albatross"

After looking at other examples of similar problems, I came up with this. But it says its an illegal return statement.

 function maxWord(string){ var longestWord= arr[0]; for(var i = 0; i < str.length;i++){ word = arr[i]; if(word.length > longestWord.length){ longestWord = word; } } } return word; } 

Answer 1

it's because you have an extra close brace and you have typos in the variables to use.

Change your code to be:

  function maxWord(arr){
    var longestWord= arr[0];
    for(var i = 0; i < arr.length;i++){
        word = arr[i];
        if(word.length > longestWord.length){
            longestWord = word;
        }

    }
    return longestWord;
}

Here's a fiddle of it working https://jsfiddle.net/qjm4qxwy/

Answer 2

Here's a solution in es6 using Array.reduce

const maxWord = (words) => {
   return words.reduce((longest, word) => {
     longest = word.length > longest.length ? word : longest;
     return longest;
   }, '')
}