function findLongestWord(str) {
var arr = str.split(" ");
var a = [];
for (var i in arr) {
a.push(arr[i].length);
}
return a.sort(function (a, b) {
return b-a;
})[0];
}
findLongestWord("The quick brown fox jumped over the lazy dog");
findLongestWord("The quick brown fox jumped over the lazy dog") 应该返回一个数字
findLongestWord("The quick brown fox jumped over the lazy dog") 应该返回 6
findLongestWord("May the force be with you") 应该返回 5.findLongestWord("Google do a barrel roll")应该返回 6.findLongestWord("What is the average airspeed velocity of an unladen swallow")应该返回 8.findLongestWord("What if we try a super-long word such as otorhinolaryngology") 应该返回 19.原文：http://www.cnblogs.com/spectrelb/p/7527204.html