Ruby: methods as array elements - how do they work?

Question

This probably isn\'t something you should try at home, but for some reason or another I tried to create an array of methods in Ruby.

I started by defining two methods.

Answer 1

If you had a square method and wanted to create an array with the square values of 2 and 4, you would write

array = [square(2), square(4)]

Here you are doing exactly the same thing, except that your test methods don't return anything and that's why your final array seems empty (actually, it contains [nil, nil]).