Concepts and mechanics to prepare students for the first day of WDI

prework_checkin_part_2.md

Pre-work Check in: Understanding Mechanics Part 2

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TIP: You can open a new Terminal window and type irb to enter a Ruby prompt. On this screen you type and execute Ruby code, similar to what you were doing on Code Academy.

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###Questions to ask yourself:

Methods

• What is a method in Ruby?

• What is the use of a method?

• What are some examples of methods we use on a String?

• What are some examples of methods we use on an Integer?

• Can I write my own method?

  • Check this link for some info on writing methods

• What does an argument and how does this relate to methods?

• Can I write a method that when called, prints my name to the Terminal?

Conditionals

• Can I write an if statement in Ruby?

• If so, can I modify that statement to add an else and elsif?

Comparator

• Is = the same as ==?

• What happens if I type a = "Zelda" in my Terminal?

• What happens if I type a == "Zelda" in my Terminal?

• What does && mean in Ruby?

• How is && useful when programming?

Booleans

• What is a boolean value?

• What will happen if I type the below into my terminal?

    zelda = true
    if zelda == false
      puts "Zelda is a figment of your imagination"
    else
      puts "Zelda is real! I wonder if this the Easter Bunny is real too"
    end