cryptointermediate

crypto — UUID matches format

📖 Usage Example

const uuid = crypto.randomUUID()
/^[0-9a-f-]{36}$/.test(uuid)  // → true

A UUID v4 matches the hexadecimal format with hyphens at fixed positions.

crypto.randomUUID() — format validation

A UUID has a specific format: xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx where x is a hex digit and y is 8, 9, a, or b.

Challenge: Verify that a UUID matches the standard UUID v4 format.

💡 Hints (1)

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