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Start your free trialDina Samir
1,991 PointsCalling a Function Question
Hi,
I am little confused about when does calling a function work with and without print.
This first code:
def add_two_nums(num1, num2):
val = num1 + num2
return val
add_two_nums(5, 10)
Doesn't call the function.
That second code:
def add_two_nums(num1, num2):
val = num1 + num2
return val
print(add_two_nums(5, 10))
calls the function.
Can someone help me with this?
2 Answers
boi
14,242 PointsThe first code calls the function, but sort of like behind the scenes, try calling the function, like the first code, in the REPL.
>>> add_two_numbers(5, 10)
15
Try this experiment in script not REPL.
def add_two_nums(num1, num2):
val = num1 + num2
return val
result = add_two_nums(5, 10)
if result == 15:
print("Auuuright")
Msg me here again if you're having trouble understanding.
boi
14,242 PointsAlright, first let us understand what is this print()
. print()
is a function, now you might ask what is a function? A function is a block of written code used to perform an action (Apparently), some examples of a function, let's suppose I want a code that prints out any given name to the screen or a function that would print each letter of a given work onto the screen.
Code that prints my name on the screen
def any_given_name(parameter):
print(parameter)
>>> any_given_name("boi")
boi
So basically this is called a function, the print()
is also a function, it's used to print out any value or object. So now coming back to your question, you asked "when does calling a function work with and without print.", calling a function works regardless of using print()
, using print()
tells the function to PRINT the result on the screen, it has nothing to do with making the function work. let's see an example π
def add(number1, number2):π #I've created a function that adds two numbers
return number1 + number2π# I then told the function to return the result not print it
stored_value = add(2, 1)π#Over here I've stored the returned value from the add function into a variable.
print(stored_value)π#Now I've used the print function to PRINT the result
This example is to show that the function add()
will work regardless of using print()
. Did this clarify? If not msg me again
Dina Samir
1,991 PointsNow I got it!! I canβt thank you enough!!
Dina Samir
1,991 PointsDina Samir
1,991 PointsSorry boi I am still new to Python I didn't quite understand the difference, can you rephrase it in a simpler way?