Posts by Robert

p = 3.14

# statement-1 puts "Hello, World Another way of writing statement-1 above: puts ("Hello, World!")

if - else Statements # statement-1 if item_counts[item_id] == nil item_counts[item_id] = 1 else item_counts[item_id] += 1 end Another way of achieving the same outcome as statement-1 above: # statement-2…

# This is a single-line comment. =begin This is a multi-line comment. =end

Duplicates of a method name that have a ! at the end, signal a side effect; that side effect is usually that it changes the value of the variable.

In Ruby, a String is created with double-quotes: "I am a String" String interpolation is done in Ruby with # { }: new_string = "New" "I am a #{new_string}" Return…

Documentation for the Ruby language can be found at: https://ruby-doc.org