// This tests computed properties. 

arr = [0, 0, 0, 10]
i = 3
ten = arr[i]

assert(ten, isEqualTo = 10, error = "oops")

p = "foo"
obj = {
  foo: 1,
  bar: 0,
}
one = obj[p]

assert(one, isEqualTo = 1, error = "oops")