velt/random/uuid#

import { uuidv4, uuidv7 } from "velt/random/uuid". RFC 9562 UUIDs. The text form is lowercase 8-4-4-4-12; the binary form is 16 bytes in network order. The random bits come from the OS's secure random number generator.

• uuidv4(): random. uuidv7(): starts with 48 bits of Unix milliseconds, so ids sort by creation time; ids created in the same millisecond are in random order.
• uuidParse(s): u8[] (either case), uuidStringify(bytes): both throw UuidError.
• uuidValidate(s): bool: true for a known version and variant, or the nil/max UUID. uuidVersion(s): i64. NIL_UUID.

import { uuidv4, uuidv7, uuidParse, uuidStringify, uuidValidate, uuidVersion } from "velt/random/uuid";

const id = uuidv7();
console.log(id.length, uuidVersion(id), uuidVersion(uuidv4()), uuidValidate(id)); // 36 7 4 true
const bytes = uuidParse("6BA7B810-9DAD-11D1-80B4-00C04FD430C8");
console.log(bytes.length, uuidStringify(bytes));