# Exercise 08: Separate and investigate

Use a copy of examples/08.

## A. Predict
Change the import to `./missing-labels.js`. Does the rest of app.js run? Which tool panel gives the first useful clue?

## B. Repair a logic error
Temporarily make seatLabel(0) return “0 places available”. Run the assertions. Explain why the syntax is valid but the behavior is wrong. Restore the required result.

## C. Transfer
Move your canFit function from exercise 04 into capacity.js as a named export. Import it into app.js and add checks for 0, a fractional request and a request above capacity. Set a breakpoint inside it and inspect one call.

## Evidence
A working two-module program and a short debugging record: expected result, observed result, cause, fix and rerun.

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