dump prints the contents of an object via reflection (mirroring).

Detailed view of an array:

let names = ["Joe", "Jane", "Jim", "Joyce"]
dump(names)

Prints:

▿ 4 elements

For a dictionary:

let attributes = ["foo": 10, "bar": 33, "baz": 42]
dump(attributes)

Prints:

▿ 3 key/value pairs

▿ 0: (2 elements)

• .0: bar
• .1: 33

▿ 1: (2 elements)

• .0: baz
• .1: 42

▿ 2: (2 elements)