JS - guid - 来自:https://github.com/vczero/OurTimes/blob/master/server/util/guid.js

guid.js

/**
 * guid模块提供生成唯一值ID，用于token生成等。
 * @module guid
 */
module.exports = {
	create: function() {
		return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {
			var r = Math.random() * 16 | 0,
				v = c == 'x' ? r : (r & 0x3 | 0x8);
			return v.toString(16);
		}).toUpperCase();
	}
};