cryptointermediate

crypto — UUID contains dashes

📖 Usage Example

const ids = new Set(Array.from({length: 1000}, () => crypto.randomUUID()))
ids.size  // → 1000 (all unique)

UUIDs are statistically guaranteed to be unique.

crypto.randomUUID() — dash format

UUIDs are formatted with dashes at specific positions to separate groups of hex digits.

Challenge: Verify that a UUID string contains dash characters.

💡 Hints (1)

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