AbortControllerbeginner

AbortController — signal.reason starts undefined

📖 Usage Example

const ac = new AbortController()
ac instanceof AbortController  // → true

AbortController instances can be verified with instanceof.

AbortController signal.reason

Before abort() is called, signal.reason is undefined.

Challenge: Verify that new AbortController().signal.reason is undefined.

💡 Hints (1)

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