Is there a shorthand if (without else) statement in Ruby on Rails?

Question

I know there is a shorthand one-line if/else statement in Ruby:

a ? b : c

Is there one for just a single if statement? Instead of writing this:

if a
  # do something
end

Is there a shorthand version of this?

question from:https://stackoverflow.com/questions/10339149/is-there-a-shorthand-if-without-else-statement-in-ruby-on-rails

Answer 1

You can use post conditions (don't mind the name, it will be evaluated before the code. And do_something will only be executed if condition evaluates to truthy value (i.e. not nil or false)).

do_something if a