Swift Playgrounds

What is a variable in Swift Playgrounds?

• Named storage for values of a particular type

• A type of playground equipment

• A type of data structure in Swift

• A function in Swift programming

How do you declare a variable in Swift Playgrounds?

• let variableName: Type

• variableName = Type

• int variableName

• var variableName: Type

What are conditional statements used for in Swift Playgrounds?

• Conditional statements are used for creating loops in Swift Playgrounds

• Conditional statements are used to make decisions in Swift Playgrounds based on certain conditions.

• Conditional statements are used for defining classes in Swift Playgrounds

• Conditional statements are used for printing text in Swift Playgrounds

What are the different types of loops in Swift Playgrounds?

• switch loop

• do-while loop

• if-else loop

• for-in loop, while loop, repeat-while loop

How do you use 'if-else' statement in Swift Playgrounds?

• By not using any condition inside the 'if-else' statement.

• By writing the condition inside the 'if' block and the alternative condition inside the 'else' block.

• By writing the condition inside the 'else' block and the alternative condition inside the 'if' block.

• By using 'if' statement for both conditions and not using 'else' at all.

What is the purpose of 'for-in' loop in Swift Playgrounds?

• To iterate over a sequence

• To cook a meal

• To play a video game

• To send an email

Explain the concept of 'while' loop in Swift Playgrounds.

• The 'while' loop in Swift Playgrounds is used to execute the code based on a random condition

• The 'while' loop in Swift Playgrounds is used to repeatedly execute a block of code as long as a specified condition is true.

• The 'while' loop in Swift Playgrounds is used to execute the code only once

• The 'while' loop in Swift Playgrounds is used to execute the code only if a specified condition is false

What is the difference between 'while' and 'repeat-while' loop in Swift Playgrounds?

• The 'while' loop and 'repeat-while' loop are the same and can be used interchangeably

• The 'while' loop executes the code inside the loop first and then checks the condition

• The 'while' loop checks the condition before executing the code inside the loop, while the 'repeat-while' loop executes the code inside the loop first and then checks the condition.

• The 'repeat-while' loop checks the condition before executing the code inside the loop

How do you use 'switch' statement in Swift Playgrounds?

• You can use 'switch' statement in Swift Playgrounds to evaluate a value against multiple possible matching patterns.

• You can use 'switch' statement in Swift Playgrounds to perform arithmetic operations

• You can use 'switch' statement in Swift Playgrounds to create a loop

• You can use 'switch' statement in Swift Playgrounds to define a class