Usage:
x || y
Returns:
True value if either x or y are truthy, or the last falsy value encountered.
The return value is the last argument to be evaluated. The first truthy value from left to right will short-circuit the expression, and the rest of the expression will not be evaluated.
= TRUE && launch_the_missiles()
The missiles will never be launched, as the expression will short-circuit after evaluating the first truthy value (in this case, TRUE).
