@ivujs/i-utils
Version:
前端模块化 JavaScript 工具库
48 lines (46 loc) • 1.31 kB
JavaScript
/**
* @module 生成Id
*/
/**
* 生成UUID
* @param {Number} len 生成的长度，默认32位
* @param {Number} radix 进制数，默认16进制
* @example
* getUUID() // 输出：0a559343dbbf0e7e6c1de90163e7aa0a
* @returns {String} 返回字符串
*/
function getUUID(len = 32, radix = 16) {
const CHARS = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ".split("");
const uuid = [];
let i = 0;
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 < 36; i++) {
if (!uuid[i]) {
r = 0 | (Math.random() * 16);
uuid[i] = CHARS[i === 19 ? (r & 0x3) | 0x8 : r];
}
}
}
return uuid.join("");
}
/**
* 生成GUID
* @example
* getGUID() // 输出：275ec770-0853-6767-4875-7b270220ce9c
* @returns {String} 返回字符串
*/
function getGUID() {
const s4 = function () {
return (((1 + Math.random()) * 0x10000) | 0).toString(16).substring(1);
};
return s4() + s4() + "-" + s4() + "-" + s4() + "-" + s4() + "-" + s4() + s4() + s4();
}
export { getGUID, getUUID };