Function uuid

packages/pglite/src/utils.ts:82–119

()

}

export const uuid = (): string => {
  // best case, `crypto.randomUUID` is available
  if (globalThis.crypto?.randomUUID) {
    return globalThis.crypto.randomUUID()
  }

  const bytes = new Uint8Array(16)

  if (globalThis.crypto?.getRandomValues) {
    // `crypto.getRandomValues` is available even in non-secure contexts
    globalThis.crypto.getRandomValues(bytes)
  } else {
    // fallback to Math.random, if the Crypto API is completely missing
    for (let i = 0; i < bytes.length; i++) {
      bytes[i] = Math.floor(Math.random() * 256)
    }
  }

  bytes[6] = (bytes[6] & 0x0f) | 0x40 // Set the 4 most significant bits to 0100
  bytes[8] = (bytes[8] & 0x3f) | 0x80 // Set the 2 most significant bits to 10

  const hexValues: string[] = []
  bytes.forEach((byte) => {
    hexValues.push(byte.toString(16).padStart(2, '0'))
  })

  return (
    hexValues.slice(0, 4).join('') +
    '-' +
    hexValues.slice(4, 6).join('') +
    '-' +
    hexValues.slice(6, 8).join('') +
    '-' +
    hexValues.slice(8, 10).join('') +
    '-' +
    hexValues.slice(10).join('')
  )
}

/**
 * Formats a query with parameters