vue hello world项目
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.

24 lines
546 B

3 years ago
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;