Quiz: Python Functions

What keyword is used to define a function in Python?

How do you pass default values to function parameters?

What is the output?

def add(x = 10):
    print(str(x + 1))

add(21)

What is the output?

def fun(a, b):
    print(type(b))

fun(['a', (10, 20, 30)], 7.7)

What is the output for type(a)?

def fun(a, b):
    print(type(a))

fun(['a', (10, 20, 30)], 7.7)

What is the output?

def fun(a):
    def add(b):
        return a + b
    return add


print(fun(4)(8))

Which function is a classic example of recursion?

What will the following code output?

def factorial(n):
   if n == 1:
      return 1
   return n * factorial(n - 1)

print(factorial(3))

What is a decorator in Python?

Which symbol is used to apply a decorator to a function?

What will the following code output?

def decorator(func):
    def wrapper():
        print("Hello")
        func()
    return wrapper

@decorator
def say_name():
    print("John")

say_name()

What is a higher-order function?

What is a closure in Python?

What does the following code output?

from functools import lru_cache

@lru_cache(maxsize=None)
def add(a, b):
    return a + b

print(add(2, 3))
print(add(2, 3))

What does the staticmethod decorator do?

Which method type uses @classmethod?