title: Set boolean variable in Ruby
body: <p>This might be a silly question, but I just can't get it to work. Pretty sure I've missed something.</p>
  
  <p>I want to set a boolean to <code>false</code>
  Then set it to <code>true</code> only when a condition is met.</p>
  
  <pre><code>boolTest = false
  
  until boolTest = true
      puts "Enter one fo these choices: add / update / display / delete?"
      choice = gets.chomp.downcase
  
      if choice == "add" || choice == "update" || choice == "display" || choice == "delete"
          boolTest = true
      end
  end
  </code></pre>
  
  <p>Only just starting to learn Ruby, so maybe I'm confusing the capabilities of other languages.</p>