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476 B
476 B
List Comprehensions
list comprehensions jsou super. Dovolujou zkratit kod uplne strasne moc.
Je to prakticky for
kterej dovoluje filtrovat.
Tohle:
# chceme sebrat vsechna sudo cisla do 1000
n = []
for i in range(1000):
if i % 2 == 0:
n.append(i)
print(n)
Je ekvivalence:
n = [i for i in range(1000) if i % 2 == 0]
print(n)
coz muzeme cist jako: "n je seznam vsech cisel do 1000 kde zbytek z deleni dvemi je nula, tl;dr vsech sudych cisel"