|
123456789101112131415161718192021222324 |
- import rng from './rng.js';
- import stringify from './stringify.js';
-
- function v4(options, buf, offset) {
- options = options || {};
- const rnds = options.random || (options.rng || rng)(); // Per 4.4, set bits for version and `clock_seq_hi_and_reserved`
-
- rnds[6] = rnds[6] & 0x0f | 0x40;
- rnds[8] = rnds[8] & 0x3f | 0x80; // Copy bytes to buffer, if provided
-
- if (buf) {
- offset = offset || 0;
-
- for (let i = 0; i < 16; ++i) {
- buf[offset + i] = rnds[i];
- }
-
- return buf;
- }
-
- return stringify(rnds);
- }
-
- export default v4;
|