Python Quiz 2

map()

filter()

reduce()

sorted()

Filters elements based on a condition

Transforms each element using a function(apply on each element)

Reduces a sequence to a single value

Sorts a sequence

import collections

import itertools

from functools import reduce

from operator import reduce

lambda (x, y): x + y

lambda x, y: x + y

def lambda(x, y): return x + y

def (x, y): return x + y

5

10

25

error

lambda can contain multiple return statements.

lambda can take multiple arguments but only one expression.

lambda is faster than normal functions.

lambda must always be named.

5

10

15

Error

def square(x):

return x**2

def square(x):

print(x**2)

def square():

return x**2

Both a & b

[1, 2, 3, 4]

[2, 3, 4, 5]

[0, 1, 2, 3]

Error

They can be used inside map(), filter(), and reduce().

They are anonymous functions.

They can have multiple expressions.

They can be assigned to variables.