lexicographical order in javascript

1'alpha' < 'zeta'; // true, because 'a' comes before 'z'
2'alpha' < 'Zeta'; // false, because 'Z' = 90 in ASCII, and 'a' = 97
3'one' < '1'; // false, because '1' = 49 in ASCII, and 'o' = 111
4
5'octo' < 'okto'; // true, because 'c' = 99, and 'k' = 107
6'a' < 'alpha'; // true, because end of string = '0' in ASCII