In Ruby, we can call
multiple methods one after another.
In the above example, three
methods are called one after another.
name.upcase results in JOHN SMITH.
This is then passed on to the downcase
method.
The downcase method runs
on JOHN SMITH and we get
john smith. This result is passed on
to the capitalize method.
Finally, the capitalize method runs on
john smith and the
result, John smith, is displayed on the screen.