IntroducingFunctions

The fourth project for iOS pre-course using functions

What is a Class and what is an Instance? Read this article on Code with Chris. Please. Read it. I know it talks a lot about Objective-C. But mostly it will teach you what you need to know about Object-Oriented Programming.
Alright, Methods file on DevMounta.in is a quick read, make sure you understand it all.
For Objective-C read the RyPress section on Functions
For Swift iOS Creator has a very simple intro to Functions and Section 2 of [Part 2] of the Tuts+ tutorial should be very helpful.

Note:

For more detailed instructions of 'Step 1' see the first project
'Step 1' is something we will do hundreds of times in class. You need to be able to do it quickly and without running into issues so it doesn't slow class down.

Declare and set a variable called myName to your name
Declare two more string variables introduction and japaneseIntroduction both with an NSString type
Set introduction using stringWithFormat (or format: in Swift) class method "My name is %@", myName
Set japanese introduction using stringByAppendingString instance method by appending " to moushimasu"
Print introduction and japanese introduction

Declare a function called printIntroductions
The function should accept an NSString as a parameter called name
Cut and paste the introduction and japaneseIntroduction code inside of the new function
You should have errors for referencing 'myName'. Change any reference to 'myName' to 'name'.
- This is an error of scope. You only declared 'myName' in your didFinishLaunching method. Not in your new method. In your new method, you declared an argument called 'name' that your function accepts when the method is called
In your didFinishLaunching method after you set myName call printIntroductions: and pass in 'myName' as an argument
It should print out the introduction and Japanese introduction

Add a new function called countDownTillIntroduction: that accepts an integer called numberOfDays as an argument
The function should do the following:
- Check to see if the numberOfDays is 0
  - If the number of days is 0, it should print "The time has come"
- If numberOfDays is not 0
  - It should print "[numberOfDays] days left until introductions"
  - It should declare and set a variable oneLessDay and set it to numberOfDays - 1
  - It should then call countDownTillIntroduction and pass in oneLessDay
In the didFinishLaunching method before you call printIntroductions call countDownTillIntroduction and pass in 4

You should see it print "4 days left until introductions", "3 days left until introductions" (down to 1) and then it should print "The time has come" and "My name is [yourName]", "[yourName] to moushimasu"

DevMountain/IntroducingFunctions