[LeetCode/JavaScript] 58. Length of Last Word (easy)

 

문제 

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.

 

입출력

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.

 

 

제약

Constraints:

• 1 <= s.length <= 10^4
• s consists of only English letters and spaces ' '.
• There will be at least one word in s.

 

 

코드

var lengthOfLastWord = function(s) {
    var words = s.trim().split(' ');
    var length = words[words.length-1].length;
    
    return length;
};