Basic Algorithm Scripting - Find the Longest Word in a String

Tell us what’s happening:
Can someone please explain the code, I’ve been stuck here for days and I still don’t understand what .split does and how the code runs.

Your code so far

function findLongestWordLength(str) {
  let words = str.split(' ');
  let maxLength = 0;

  for (let i = 0; i < words.length; i++) {
    if (words[i].length > maxLength) {
      maxLength = words[i].length;

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

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/ Safari/537.36

Challenge: Basic Algorithm Scripting - Find the Longest Word in a String

Link to the challenge:

It is easier to explain by comparing it to your solution. If you don’t have a solution yet, i would back up and write one. Getting the checkmarks isn’t important - practicing coming up with solutions is the purpose of the challenges. We can help you fix your own solution if you are stuck with it.

1 Like

It’s hard to come up with a solution when you don’t know what parts you should use to come up with one. To be more specific, I know how to get the length of the whole string but I don’t know how to get individual words of a string which is basically a whole sentence.

Sure, but that’s also what programming is all about.

That’s a great question that can be asked and answered without looking up somebody else’s solution.

I would start by using Google here. Something like “JavaScript break string into words” perhaps.

This is one response I found:

1 Like