Python for Absolute Beginners Transcripts
Chapter: Course conclusion
Lecture: Review: Functions
0:00 One of the most powerful tools we have in our programming toolbox for changing the way that we think about and work with our code is functions.
0:09 Functions allow us to group together a bunch of small little steps into one very simple step. Here we have a bunch of things going on
0:16 we have a function called play around. It takes some arguments and then we take a bunch of work inside the function.
0:21 But all that matters once we write this when we want to use it we know pass player_1 and player_2's name and then what we'll get back
0:29 is the value of the winner. Either player_1 or player_2 or if there's a tie, we get none. And that allows us two really important things.
0:38 One, it allows up to think about well this step is where you play the round. We don't have to worry about the details.
0:43 Remember in our later part of the course we changed the way that we got the input from the users. We got that instead of just saying
0:51 input and type in a number we actually used that autocomplete thing. The stuff that was calling get play or get role from the user
0:58 they didn't have to go and know that we changed how that worked. It just got changed and everywhere we used it automatically
1:04 the better version got used. It allows us to hide away and not worry about the details just used the high level idea of playing around.
1:10 It also lets us organize our code in a way that is much simpler. We can think about here we're going to play around
1:16 we're going to check for the winner. If there's enough winners. I have enough wins for any given player we're going to exit out of the loop
1:22 and they win. It allows you to think at a very high level instead of at every single bit you're thinking about the details. Super cool.
1:29 Be sure to make use of functions try to keep them short and small. If they get really long and cumbersome you probably want to break that further
1:36 into smaller functions. Allow you to get smaller and smaller detail as you go down and not get things too complicated all in one place.