intro_to_yield.md

Intro to Yield

• write a method, yields_to_block, that yields to a block and executes it just once.
  • invoke yields_to_block without passing it a block. What happens?
• write a method, encore!, that yields to the same block twice.
  • invoke encore! by passing it a block that prints the title of your favorite song to the console.
• write a method, applaud_all_acts, which takes a block and executes it 5 times. After each execution of the block, the method should print (applause) to the console.
  • invoke this method with some golf-related code. Golf people applaud everything.