persagy-web/persagy-web-base/src/utils/SUuid.ts

/*
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 *      .&888888I                                          Copyright (c) 2009-2020.  博锐尚格科技股份有限公司
 *        ~8888'
 *        .!88~                                                                     All rights reserved.
 *
 * *********************************************************************************************************************
 */

/**
 * 生成uuid工具
 *
 */
export class SUuid {
    /**
     * 默认生成32位uuid
     *
     * @param   len     要生成的uuid的长度
     * @param   radix   生成uuid的基数
     * */
    static uuid(len: number, radix: number): string {
        const chars = "0123456789abcdef".split("");
        let uuid = [],
            i;
        radix = radix || chars.length;
        if (len) {
            for (i = 0; i < len; i++) {
                uuid[i] = chars[0 | (Math.random() * radix)];
            }
        } else {
            let r;
            uuid[8] = uuid[13] = uuid[18] = uuid[23] = "";
            uuid[14] = "4";
            for (i = 0; i < 32; i++) {
                if (!uuid[i]) {
                    r = 0 | (Math.random() * 16);
                    uuid[i] = chars[i == 19 ? (r & 0x3) | 0x8 : r];
                }
            }
        }
        return uuid.join("");
    } // Function uuid()
} // Class SUuid()