source: trip-planner-front/node_modules/uuid/dist/esm-browser/stringify.js@ fa375fe

Last change on this file since fa375fe was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago

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1import validate from './validate.js';
2/**
3 * Convert array of 16 byte values to UUID string format of the form:
4 * XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX
5 */
6
7var byteToHex = [];
8
9for (var i = 0; i < 256; ++i) {
10 byteToHex.push((i + 0x100).toString(16).substr(1));
11}
12
13function stringify(arr) {
14 var offset = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 0;
15 // Note: Be careful editing this code! It's been tuned for performance
16 // and works in ways you may not expect. See https://github.com/uuidjs/uuid/pull/434
17 var uuid = (byteToHex[arr[offset + 0]] + byteToHex[arr[offset + 1]] + byteToHex[arr[offset + 2]] + byteToHex[arr[offset + 3]] + '-' + byteToHex[arr[offset + 4]] + byteToHex[arr[offset + 5]] + '-' + byteToHex[arr[offset + 6]] + byteToHex[arr[offset + 7]] + '-' + byteToHex[arr[offset + 8]] + byteToHex[arr[offset + 9]] + '-' + byteToHex[arr[offset + 10]] + byteToHex[arr[offset + 11]] + byteToHex[arr[offset + 12]] + byteToHex[arr[offset + 13]] + byteToHex[arr[offset + 14]] + byteToHex[arr[offset + 15]]).toLowerCase(); // Consistency check for valid UUID. If this throws, it's likely due to one
18 // of the following:
19 // - One or more input array values don't map to a hex octet (leading to
20 // "undefined" in the uuid)
21 // - Invalid input values for the RFC `version` or `variant` fields
22
23 if (!validate(uuid)) {
24 throw TypeError('Stringified UUID is invalid');
25 }
26
27 return uuid;
28}
29
30export default stringify;
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