javascript - Sort strings by using "less/greater than" comparison operators in comparator

Today I found a strange for me implementation of strings sorting:

['Data', 'Chata', 'Clata'].sort(function(a, b) { return a > b});

Using this approach we take a valid sorted array as the output - ["Chata", "Clata", "Data"].
But I don't clearly understand why it works...

I know that comparator function expects three different outputs - zero, integer above zero, integer below zero. But in this case we can take only two values - true (if a greater than b) or false (if a less than b) (1 or 0 after type coercion).

Can anybody explain me why it works?