freeCodeCamp/guide/english/ruby/ruby-conditionals/index.md

title
Ruby Conditionals

Ruby has several commonly used conditionals.

If Statements

An extremely common conditional in many programming languages, the statement tests if the condition is true, then branches into the specified action. An if statement consists of one if, any number of elsif and at most one else statement.

• fruit = :apple
  
  if fruit == :apple
    puts "Your fruit is an apple"
  elsif fruit == :orange
    puts "Your fruit is an orange"
  else
    puts "This is not an apple or an orange"
  end
  

Unless statement

An unless statement is the opposite of an if statement. It is the same as a negated if statement.

• happy = true
  if !happy
    puts "This person is not happy"
  end
  

The above statement equal to the statement below

• unless happy
    puts "This person is not happy"
  end
  

Ternary Statement

A ternary statement is used as a short conditional statement. It is written as follows

• game = "won"
  fans = game == "won" ? "happy" : unhappy
  fans # => "happy"
  

Case Statement

A case statement is similar to an if/elsif/else statement

• fruit = :apple
  
  case fruit
  when :apple
    puts "Your fruit is an apple"
  when :orange
    puts "Your fruit is an orange"
  else
    puts "This is not an apple or an orange"
  end