freeCodeCamp/curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-algorithm-scripting/find-the-longest-word-in-a-string.md

id	title	challengeType	forumTopicId	dashedName
a26cbbe9ad8655a977e1ceb5	找出字符串中的最长单词	5	16015	find-the-longest-word-in-a-string

--description--

返回给出的句子中，最长单词的长度。

函数的返回值应是一个数字。

--hints--

findLongestWordLength("The quick brown fox jumped over the lazy dog") 应返回一个数字。

assert(
  typeof findLongestWordLength(
    'The quick brown fox jumped over the lazy dog'
  ) === 'number'
);

findLongestWordLength("The quick brown fox jumped over the lazy dog") 应返回 6。

assert(
  findLongestWordLength('The quick brown fox jumped over the lazy dog') === 6
);

findLongestWordLength("May the force be with you") 应返回 5。

assert(findLongestWordLength('May the force be with you') === 5);

findLongestWordLength("Google do a barrel roll") 应返回 6。

assert(findLongestWordLength('Google do a barrel roll') === 6);

findLongestWordLength("What is the average airspeed velocity of an unladen swallow") 应返回 8。

assert(
  findLongestWordLength(
    'What is the average airspeed velocity of an unladen swallow'
  ) === 8
);

findLongestWordLength("What if we try a super-long word such as otorhinolaryngology") 应返回 19。

assert(
  findLongestWordLength(
    'What if we try a super-long word such as otorhinolaryngology'
  ) === 19
);

--seed--

--seed-contents--

function findLongestWordLength(str) {
  return str.length;
}

findLongestWordLength("The quick brown fox jumped over the lazy dog");

--solutions--

function findLongestWordLength(str) {
  return str.split(' ').sort((a, b) => b.length - a.length)[0].length;
}

findLongestWordLength("The quick brown fox jumped over the lazy dog");