Length of Last Word

Given a string s consisting of some words separated by some number of spaces, return the length of the last word in the string.

A word is a maximal substring consisting of non-space characters only.

Example 1:

Input: s = "Hello World"
Output: 5
Explanation: The last word is "World" with length 5.

Example 2:

Input: s = "   fly me   to   the moon  "
Output: 4
Explanation: The last word is "moon" with length 4.

Example 3:

Input: s = "luffy is still joyboy"
Output: 6
Explanation: The last word is "joyboy" with length 6.

Constraints:

1 <= s.length <= 104
s consists of only English letters and spaces ' '.
There will be at least one word in s.

Python solution

class Solution:
    def lengthOfLastWord(self, s: str) -> int:

        length = 0

        new_str = s.strip()

        for i in range(len(new_str)):
            if new_str[i] == " ":
                length = 0
            else:
                length +=1
        return length