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@@ -2,5 +2,4 @@ dist/ | |
| node_modules/ | ||
| .nyc_ouput/ | ||
| coverage/ | ||
| lib/ | ||
| environment/ | ||
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| /** | ||
| * UUID generator | ||
| * | ||
| * This is a modified version of Robert Kieffer's Math.uuid | ||
| * from http://www.broofa.com/2008/09/javascript-uuid-function/ | ||
| * | ||
| * It differs in three ways from the original work: | ||
| * - uuid is no longer attached to the Math object | ||
| * - script is now written in require.js style | ||
| * - alternative implementations have been removed | ||
| * | ||
| * Additionally the usage examples have been adapted to reflect these changes. | ||
| * | ||
| * Original credits: | ||
| * Math.uuid.js (v1.4) | ||
| * http://www.broofa.com | ||
| * mailto:robert@broofa.com | ||
| * | ||
| * Copyright (c) 2010 Robert Kieffer | ||
| * Dual licensed under the MIT and GPL licenses. | ||
| * | ||
| */ | ||
|
|
||
| // Private array of chars to use | ||
| const CHARS = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz'.split(''); | ||
|
|
||
| /** | ||
| * Generate a random uuid | ||
| * | ||
| * USAGE: uuid(length, radix) | ||
| * length - the desired number of characters | ||
| * radix - the number of allowable values for each character. | ||
| * | ||
| * EXAMPLES: | ||
| * // No arguments - returns RFC4122, version 4 ID | ||
| * >>> uuid() | ||
| * "92329D39-6F5C-4520-ABFC-AAB64544E172" | ||
| * | ||
| * // One argument - returns ID of the specified length | ||
| * >>> uuid(15) // 15 character ID (default base=62) | ||
| * "VcydxgltxrVZSTV" | ||
| * | ||
| * // Two arguments - returns ID of the specified length, and radix. (Radix must be <= 62) | ||
| * >>> uuid(8, 2) // 8 character ID (base=2) | ||
| * "01001010" | ||
| * >>> uuid(8, 10) // 8 character ID (base=10) | ||
| * "47473046" | ||
| * >>> uuid(8, 16) // 8 character ID (base=16) | ||
| * "098F4D35" | ||
| * | ||
| * @param {number} len | ||
| * @param {number} radix | ||
| * @returns {*} | ||
| * @private | ||
| */ | ||
| function uuid(len, radix) { | ||
| const chars = CHARS; | ||
| const id = []; | ||
| radix = radix || chars.length; | ||
|
|
||
| // Compact form | ||
| if (len) { | ||
| for (let i = 0; i < len; i++) { | ||
| id[i] = chars[0 | (Math.random() * radix)]; | ||
| } | ||
| // rfc4122 form | ||
| } else { | ||
| // rfc4122 requires these characters | ||
| // eslint-disable-next-line | ||
| id[8] = id[13] = id[18] = id[23] = '-'; | ||
| id[14] = '4'; | ||
|
|
||
| // Fill in random data. At i === 19 set the high bits of clock sequence as | ||
| // per rfc4122, sec. 4.1.5 | ||
| for (let i = 0; i < 36; i++) { | ||
| if (!id[i]) { | ||
| const r = 0 | (Math.random() * 16); | ||
| id[i] = chars[i === 19 ? (r & 0x3) | 0x8 : r]; | ||
| } | ||
| } | ||
| } | ||
|
|
||
| return id.join(''); | ||
| } | ||
| export default uuid; |