Collections Basics — Series 3

Preview — 3 of 10 questions

What is the output of the following code?

javascript

a = [1, 2, 3]
b = a
c = a.copy()
d = a[:]
b.append(4)
c.append(5)
d.append(6)
print(a)
print(b is a)
print(c is a)
print(d is a)

A[1, 2, 3, 4], True, False, False

B[1, 2, 3], False, False, False

C[1, 2, 3, 4, 5, 6], True, False, False

D[1, 2, 3, 4], True, True, True

What is the output of the following code?

javascript

print(tuple([1, 2, 3]))
print(tuple("abc"))
print(tuple({"x": 1, "y": 2}))

A(1, 2, 3), ('a', 'b', 'c'), (('x', 1), ('y', 2))

B(1, 2, 3), ('a', 'b', 'c'), ('x', 'y')

C[1, 2, 3], ('abc',), ('x', 'y')

D(1, 2, 3), ('abc',), (('x', 1), ('y', 2))

What is the output of the following code?

javascript

d = {"a": 1, "b": 2, "c": 3}
print(list(d.keys()))
print(list(d.values()))
print(list(d.items()))
print(type(d.keys()))

A[1, 2, 3], ['a', 'b', 'c'], [('a', 1), ('b', 2), ('c', 3)], <class 'dict_keys'>

B['a', 'b', 'c'], [1, 2, 3], {'a': 1, 'b': 2, 'c': 3}, <class 'dict_keys'>

C['a', 'b', 'c'], [1, 2, 3], [('a', 1), ('b', 2), ('c', 3)], <class 'dict_keys'>

D['a', 'b', 'c'], [1, 2, 3], [('a', 1), ('b', 2), ('c', 3)], <class 'list'>

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