Add an answer without breaking anything
Definition and example
Add an answer without breaking anything is the focus of this lesson. New questions arrive every week. Adding one entry to the dictionary is a one-line change — and the tests you already wrote prove nothing else broke. The task asks you to apply that idea in a small example: What is the safest way to add a new answer. Before you run the code, predict what should happen. Then Inspect the printed output and the values your program uses and compare it with your prediction. If the result differs, change one relevant line and run it again. Testing one change at a time makes the cause of a result easier to understand.
Run your code to see the output and the checks.
Submit your code to see results
Write your code in the middle column and press Run code.
Why this works
Checks on this task:
- The program output must match “2 answers 3 answers Every track ends with a certificate you can verify online.”.
The task and step-by-step instructions are written as comments at the top of the editor. Change one relevant line, run it, and compare the result with these checks.
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Incorrect attempts before answer: 0 / 3
Track progress
0 passed of 56 tasks
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Worked answer
You have made three incorrect attempts. Review this example, close the window, and continue practising.