extension Int {

   subscript(var myInt: Int) -> Int {

  var no1 = 1

  while myInt > 0 {

     no1 *= 10

     --myInt

  }

  return (self / no1) % 10

   }

}

print(12[0])

What is the output?

Which of the following are true about extension functionalities?

Instance methods can be _____ in extension

Extension can be used to create a new nested type of the following:

Which is true about the Dictionary?

If C is a superset of D, then D is a subset of C

What will happen if you assign a value to a property within its own didSet observer?

Which of following expressions can be used to rewrite the following UITableView instantiation in Swift UITableView *myTableView = [[UITableView alloc] initWithFrame: CGRectZero style: UITableViewStyleGrouped];

What aspect of iOS development requires the use of NSOperation and/or Grand Central Dispatch (GCD)?

In the below text, what is the name of the class’s only method? Class Square: NamedShape { var sideLength: Double func area() -> Double { return sideLength*sideLength } }

In the below text, what is the class name? Class Square: NamedShape { var sideLength: Double func area() -> Double { return sideLength*sideLength } }