Function

A piece of code that can be executed as part of a program, which may return a value.

define main()
  name = read("Enter your name")
  print("*=*=*=*=*=*=*=*=*")
  print(name)
  print("*=*=*=*=*=*=*=*=*")


  nickname = read("Enter your nickname")
  print("*=*=*=*=*=*=*=*=*")
  print(nickname)
  print("*=*=*=*=*=*=*=*=*")


  userID = read("Enter your user ID")
  print("*=*=*=*=*=*=*=*=*")
  print(userID)
  print("*=*=*=*=*=*=*=*=*")


  

Repetative Code

define main()
  name = read("Enter your name")
  print("*=*=*=*=*=*=*=*=*")
  print(name)
  print("*=*=*=*=*=*=*=*=*")


  nickname = read("Enter your nickname")
  print("*=*=*=*=*=*=*=*=*")
  print(nickname)
  print("*=*=*=*=*=*=*=*=*")


  userID = read("Enter your user ID")
  print("*=*=*=*=*=*=*=*=*")
  print(userID)
  print("*=*=*=*=*=*=*=*=*")

Use Loops

define main()
  for i from 0 to 2
    if i == 0
     input = read("Enter your name")
    if i == 1
      input = read("Enter your nickname")
    if i == 2
      input = read("Enter your user ID")


    print("*=*=*=*=*=*=*=*=*")
    print(input)
    print("*=*=*=*=*=*=*=*=*")
  

Use Functions?

define main()
  getName()
  getNickname()
  getUserID()


define getName()
  name = read("Enter your name")
  print("*=*=*=*=*=*=*=*=*")
  print(name)
  print("*=*=*=*=*=*=*=*=*")


define getNickname()
  nickname = read("Enter your nickname")
  print("*=*=*=*=*=*=*=*=*")
  print(nickname)
  print("*=*=*=*=*=*=*=*=*")


define getUserID()
  userID = read("Enter your user ID")
  print("*=*=*=*=*=*=*=*=*")
  print(userID)
  print("*=*=*=*=*=*=*=*=*")

Use Function
with Parameter

define main()
  name = read("Enter your name")
  prettyPrint(name)
  nickname = read("Enter your nickname")
  prettyPrint(nickname)
  userID = read("Enter your user ID")
  prettyPrint(userID)


define prettyPrint(input)
  print("*=*=*=*=*=*=*=*=*")
  print(input)
  print("*=*=*=*=*=*=*=*=*")

Use Function
with Parameter

define main()
  getInputAndPrint("Enter your name")
  getInputAndPrint("Enter your nickname")
  getInputAndPrint("Enter your user ID")


define getInputAndPrint(prompt)
  input = read(prompt)
  print("*=*=*=*=*=*=*=*=*")
  print(input)
  print("*=*=*=*=*=*=*=*=*")

Use Function
with Parameter & Return

define main()
  name = getInputAndPrint("Enter your name")
  nickname = getInputAndPrint("Enter your nickname")
  userID = getInputAndPrint("Enter your user ID")


define getInputAndPrint(prompt)
  input = read(prompt)
  print("*=*=*=*=*=*=*=*=*")
  print(input)
  print("*=*=*=*=*=*=*=*=*")
  return input