Program as communication

Every program is an act of communication:

• Between you and the computer
• Between you and yourself in the future
• Between you and others

Questions to ask ourselves:

• What are we trying to do?
• How are we doing it?

Comments

“;;” for the entire line of comment

“;” for part of the line

Design Recipe

The design recipe is a process for developing a function.

There are 3 main purposes:

1. Writing it helps you understand the problem
2. It helps you write understandable code
3. It helps you write tested code so you have some confidence it does what it should