Write a function with a default argument
Definition and example
Write a function with a default argument is the focus of this lesson. A default value makes an argument optional: `discount=0` means a call may leave it out entirely. The function still returns one clear number. The task asks you to apply that idea in a small example: Task: Write a function with a default argument. What does this program print. 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.
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Why this works
Checks on this task:
- The program output must match “30000 27000.0”.
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
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Worked answer
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