Python

Question

I don’t really understand how to use the def function.can someone please explain it?

Answer 1

here is a link to a short tutorial from sololearn:

https://www.sololearn.com/learn/JUMP_LINK__&&__Python__&&__JUMP_LINK/2285/?ref=app

Answer 2

it is used to define a function, it consists of a piece of code which is designed for completing a certain task

def yourFunctionName(parameters or Arguments):
# your piece of code, written by you

reason behind using a function

it makes our code reusable, because we can call a function from anywhere in our code,

it reduces code length, because we don't have to write same piece of code again and again

for example

def sumTwoNumbers( first, second ):
sum = first + second

now we can call this function any number of times we want

like, print(sumTwoNumbers ( 10, 20))

print(sumTwoNumbers (1000, 3000)