When youâre done with this chapter, you will
- Understand a super-powerful tool (functions) for programmers
- Be able to tell stories and calculate things with functions
- Build 100 planets and fly among them
Chapter 5Functions: Use and Use Again
Computer programs are a little like stories.
Once upon a time, there were 100 special planets. Each planet was a different color and a different size. They were scattered throughout known space. And there was only one ship fast enoughâand one pilot crazy enoughâto reach them all.
By now, we have some of the know-how needed to write that story in JavaScript code. But where do we start? How could we organize all that? Are we really going to have to type all the code for 100 planets?
The programming answer ...
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