leetcode（58）Length of Last Word js代码实现

Given a string s consists of upper/lower-case alphabets and empty space characters 

'
'

, return the length of last word in the string.

If the last word does not exist, return 0.

Note: A word is defined as a character sequence consists of non-space characters only.

For example, 
Given s = 

"Hello
World"

,

return 

5

.

JavaScript代码实现

/**
* @param {string} s
* @return {number}
*/
var lengthOfLastWord = function(s) {
s = s.trim(s);
var ss = s.split(" ");
var l = ss.length;
if(l == 0){
return 0;
}
return (ss[l - 1].length);
};

注意JavaScript中string的一些方法