Length of last word in a string, leetcode #58 https://leetcode.com/problems/length-of-last-word/

length_of_last_word.go

/*
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.
*/
func lengthOfLastWord(s string) int {
    stringArr := strings.Fields(s)
    word := stringArr[len(stringArr)-1]
    return len(word)
}