One small change at a time

Make two small improvements to your app, one at a time:

1. Ask for change one. Add "Change nothing else."
2. Refresh and check that it worked and that the one action still works.
3. Make a save point with a short name.
4. Repeat for change two.

You're done when you have two new save points, each named after one change, and the one action still works after both.

• One change per message. End with "Change nothing else."
• Change → check → save, every time.
• If a check fails, fix just that one thing or go back to the last save point.

Next lesson (3.5): what "online" actually means, before we put your app there.