Welcome to the Treehouse Community
Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.
Looking to learn something new?
Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.
Start your free trialGremyko Coleman
9,756 PointsWas the function for this video needed?
For this video, was the function even needed? what I am trying to ask is, could this have been done without writing the function? Because wasn't the $id and $item pulled from the data.php file to fill out the catalog list on the catalog.php and index.php file?
Steven Snary
17,540 PointsSince the code for the function will be run in more than one spot (The catalog.php
and index.php
pages) and we'd like to keep out code DRY (Don't Repeat Yourself) then it is a good programming practice to but the code in a function and call it as needed.
It also keeps the "main" code a little cleaner - but the DRY reason is the best one.
Andrew Patella
2,270 PointsAndrew Patella
2,270 PointsThat's a good question, the page was working fine without it so I would say no, but i think the reason for the function would be for adding it to new pages in the future as well as changing the way function works from one location if needed.
I think she had us build it out the hard way then add in the function later to show us what it was doing and how all the pieces fit together. I think if we were pro devs we would have started with the function.
what are your thoughts?