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andreagrandi/lambda_map_list_comprehension.py

Last active October 11, 2015 12:17
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lambda_map_list_comprehension.py
# Define a lambda function that takes a number and double it
d = lambda x: x * 2
# Create a list containing: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
l1 = [x for x in xrange(10)]
# Method #1 using map(...)
# output: [0, 2, 4, 6, 8, 10, 12, 14, 16, 18]
print map(d, l1)
# Method #2 using list comprehension
# output: [0, 2, 4, 6, 8, 10, 12, 14, 16, 18]
print [d(x) for x in l1]
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