From 9ae06312759cd2bf92d6c1715bdcac0eb8323f9d Mon Sep 17 00:00:00 2001 From: sjbumbe Date: Wed, 17 Oct 2018 08:55:09 -0400 Subject: [PATCH] Problem answers --- .../main.xcplaygroundpage/Contents.swift | 33 +++++++++++++++---- 1 file changed, 26 insertions(+), 7 deletions(-) diff --git a/MyPlayground.playground/Pages/main.xcplaygroundpage/Contents.swift b/MyPlayground.playground/Pages/main.xcplaygroundpage/Contents.swift index 09e428b..620fa18 100644 --- a/MyPlayground.playground/Pages/main.xcplaygroundpage/Contents.swift +++ b/MyPlayground.playground/Pages/main.xcplaygroundpage/Contents.swift @@ -11,31 +11,44 @@ /*: question1 ### 1. Write a function called `helloWorld()` that prints "Hello, world!" to the console. Then call it to see your string printed to the playground console. */ -// write your code here +func helloWorld(){ + print("Hello, world!") +} +helloWorld() /*: question2 ### 2. Write your own function in which you declare a constant inside the function's body and then print that constant to the console. Call this function to see your string printed to the playground console. */ -// write your code here +func func2(){ + let name = "Steve" + print(name) +} +func2() /*: question3 ### 3. Write a function that takes a person's name as an argument and prints a greeting to the console. Call it several times with different arguments. What do you think you'll see in the console? */ -// write your code here - +func greeting(name: String){ + print("Hello \(name)") +} +greeting(name: "Steve") +greeting(name: "Vanessa") +greeting(name: "Sasha") /*: question4 ### 4. Now call the function you wrote in Question 3 using a variable or constant instead of a string literal. What do you expect to see in the console? Try passing in a _variable_ you declared (using `var`) as an argument. Then change that variable's value and call your function again. What do you see in the console? */ -// write your code here +var friend1 = "Tom" + +greeting(name: friend1) @@ -43,8 +56,14 @@ /*: question5 ### 5. Write your own function in which you declare a _variable_ (of any type) inside the function's body. Print out this variable to the console from within your function. After you print the variable once, assign a new value to this variable on the next line. Print it again (after the line on which you assign it to a new value). Call your function several times. What do you expect to see printed to the playground's console each time you call this function? */ -// write your code here - +func mult(){ + var x = 2 + print(x) + x *= 2 +} +mult() +mult() +mult()