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JavaScript JavaScript Loops, Arrays and Objects Tracking Multiple Items with Arrays Using For Loops with Arrays

Why all the functions?

As practice, I've been trying to write out the code on my own before Dave explains it. For this lesson I wrote something a bit different then what Dave suggests, but was able to accomplish the same thing:

var playList = [ 'I Did It My Way', 'Respect', 'Imagine', 'Born to Run', 'Louie Louie', 'Maybellene' ];

var maxLoop = playList.length var currentSong = ' ';

for (var i = 0; i < maxLoop; i += 1) { currentSong += ("<li>" + playList[i] + "</li>"); }

document.write("<ol>" + currentSong + "</ol>");

My question: Is Dave beginning to define functions, even if functions aren't needed, to get us in the practice for when we're working on bigger projects?

1 Answer

Ryan Field
PLUS
Ryan Field
Courses Plus Student 21,242 Points

Basically, yes. Having functions makes your code so much easier to manage and make modifications when they are necessary. It also makes it modular, which means you can port it and reuse it in other places when you need it.

Obviously, if you just want one thing to happen on a simple page, it doesn't really matter if you make functions or not, but it is a good practice to get into if you want to work on larger projects.