import { randomUUID } from "./randomUUID"; const decimalToHex = Array.from({ length: 256 }, (_, i) => i.toString(16).padStart(2, "0")); export const v4 = () => { if (randomUUID) { return randomUUID(); } const rnds = new Uint8Array(16); crypto.getRandomValues(rnds); rnds[6] = (rnds[6] & 0x0f) | 0x40; rnds[8] = (rnds[8] & 0x3f) | 0x80; return (decimalToHex[rnds[0]] + decimalToHex[rnds[1]] + decimalToHex[rnds[2]] + decimalToHex[rnds[3]] + "-" + decimalToHex[rnds[4]] + decimalToHex[rnds[5]] + "-" + decimalToHex[rnds[6]] + decimalToHex[rnds[7]] + "-" + decimalToHex[rnds[8]] + decimalToHex[rnds[9]] + "-" + decimalToHex[rnds[10]] + decimalToHex[rnds[11]] + decimalToHex[rnds[12]] + decimalToHex[rnds[13]] + decimalToHex[rnds[14]] + decimalToHex[rnds[15]]); };