Functions

• Function


  A block of reusable code that can be invoked by calling its name and passing in arguments
• Invoking a function

  1. Type the function name

  2. Add a set of parentheses
• Arguments

  Data that is passed into a function when it is invoked
• Parameters


  Variables defined in the function definition that receive the arguments when the function is called
• When invoking a function

  The number and order of arguments must match the number and order of parameters
• Return statement


  A statement used to end a function and send a result back to the caller
• Functions allow you to write reusable code that can be called with different arguments