What is wrong with this code? for (key, value) in [1: "one", 2: "two"]{print(key, value)}

Which of these choices is associated with unit testing?

What data type is this an example of? let vals = ("val", 1)

What is wrong with this code? var x = 5; x = 10.0

What is wrong with this code? Let val = 5.0 + 10

What prints to the console when executing this code? let x = try? String.init("test") print(x)

In Apple Swift, if we don't want to provide an external name for the second parameter of a method, then which of the following symbols can be used to override the default behavior?

Options the code that will generate compilation error when executed. func abc(inout a: T, inout _ b: T) { let a1 = a a = b b = a1 print('\(a) \(b)') }

Correct output? struct a1 [ var x = 0.0, y = 0.0 } struct b1 { var w = 0.0. h = 0.0 }

Output of the last line? let a=4 print(a&+0) print(a&-O) print(a&0) print(a<<1) print(a>>1) print(a<<2)

Analyze the Apple Swift code given in Image 1, and choose its correct output from Image