Why we use return in function ?

Answer 1

Return can be written as the result of a function in any variable when the function is called. For example:
def calculate(x, y):
return x+y
sum = calculate(3, 7)
print(sum)
This will print 10. You can repeat this with other variables.
sum2 = calculate(10, 5)
print(sum2)
This will print 15.

Answer 2

Amritpal Singh ,

functions can be made to do operations and output a result when they are called.

in other cases we do not need to output the result from the function itself, but we may work with it in our main program.

> functions perform operations.
> if we need to use values in the calling programm, we can return them.
> they can be assigned to a variable and can be used for further purpose.

find some more details in the attached file:

https://sololearn.com/compiler-playground/c8g4iFWcy976/?ref=app