list-comprehension-example.md

dataset:

names = ['John', 'Mary', 'Sue', 'Jill', 'Garth', 'Jack', 'Jennifer']

before:

names_that_start_with_j = []
for name in names:
    if name.startswith('J'):
        names_that_start_with_j.append(name)

after:

names_that_start_with_j = [name for name in names if name.startswith('J')]