dynamic_language.md

Dynamic Language

Thanks to the dynamic nature of python, we can define functions in loops or conditions.

But this feature is usually useless. ಠ_ಠ

Table of Contents

• Dynamic Language
  • Table of Contents
  • For-loop def
  • Conditional def

For-loop def

Only last function will be left.

for i in range(10):
    def say():
        print(i)
    say()  # 0, 1, 2, 3, 4, 5, 6, 7, 8, 9

say()  # 9

Conditional def

This is a little more practical than for-loop.

def returnFunc(a):
    if a < 100:
        def mul(b):
            print(a * b)
        return mul
    else:
        def add(b):
            print(a + b)
        return add

mul = returnFunc(10)
mul(10)  # 100

add = returnFunc(100)
add(10)  # 110