... comprehensions: introduction


Let's say we want to create a new list from an old list.

old_list = [1, 2, 3, 4, 5]
new_list = []
for i in old_list:
    new_list.append(i * 2)

In this case we're doubling numbers. This simple operation can also be done on a single line instead.

[i * 2 for i in old_list]

In this series of video's we'll explore this coding pattern.

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