Find the longest word in a string?

Question

I am trying to write a basic javascript function to find the longest word in a string and log it\'s length.

So far I have:

function findLongestWord(         


        

Answer 1

function findLongestWord(str) {
  var arr=str.split(" ");
  var sarr=arr.sort(function(a,b){return b.length-a.length;});
  str=sarr[0];
  return str.length;
}

using the javascript Array.prototype.sort() we can slove this problem elegantly without using the loop