What is Swift - Interactive Quiz & Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to print a greeting in Swift.

Swift

print([1])

Drag options to blanks, or click blank then click option'

AHello Swift

BHello, Swift!

C'Hello, Swift!'

D"Hello, Swift!"

Attempts:

3 left

💡 Hint

Common Mistakes

Forgetting the double quotes around the string.

Using single quotes instead of double quotes.

In Swift, strings must be enclosed in double quotes when printed.

2fill in blank

medium

Complete the code to declare a variable named greeting with the value "Hello".

Swift

var greeting = [1]

Drag options to blanks, or click blank then click option'

A"Hello"

B'Hello'

CHello

Dgreeting

Attempts:

3 left

💡 Hint

Common Mistakes

Assigning the string without quotes.

Using single quotes instead of double quotes.

In Swift, string values must be enclosed in double quotes when assigned to variables.

3fill in blank

hard

Fix the error in the code to correctly declare a constant named pi with value 3.14.

Swift

let pi = [1]

Drag options to blanks, or click blank then click option'

A3,14

B"3.14"

C3.14

Dpi

Attempts:

3 left

💡 Hint

Common Mistakes

Using a comma instead of a dot for decimals.

Putting the number inside quotes making it a string.

Numbers in Swift use a dot for decimals, not a comma.

4fill in blank

hard

Fill both blanks to create a function named greet that prints a message.

Swift

func [1]() {
    print([2])
}

Drag options to blanks, or click blank then click option'

Agreet

B"Welcome to Swift!"

Cgreeting

DWelcome

Attempts:

3 left

💡 Hint

Common Mistakes

Using a variable name instead of a string in print.

Missing parentheses after the function name.

The function name is greet and it prints the string "Welcome to Swift!".

5fill in blank

hard

Fill all three blanks to create a dictionary with keys and values.

Swift

let [1] = [[2]: [3]]

Drag options to blanks, or click blank then click option'

Aperson

B"name"

C"Alice"

Dage

Attempts:

3 left

💡 Hint

Common Mistakes

Forgetting quotes around string keys or values.

Using a variable name instead of a string for the key.

This creates a dictionary named person with key "name" and value "Alice".