工具方法

/**
 * 生成uuid，示例：() => "5e274a7d-0ed1-4abd-8ea4-f1dc028ae17d"
 * @return {String} uuid字符串
 **/
let uuid = function() {
    return "xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx".replace(/[xy]/g, function (c) {
        const r = (Math.random() * 16) | 0,
              v = c == "x" ? r : (r & 0x3) | 0x8;
        return v.toString(16);
    });
};

/**
 * url字符串转url对象，示例：("https://yuhuo.com/look?a=1#b") => 
 * {
 *     protocol: "https:",
 *     host: "yuhuo.com",
 *     origin: "https://yuhuo.com",
 *     pathname: "/look",
 *     search: "?a=1",
 *     hash: "#b"
 * }
 * @param {String} url url字符串
 * @return {Object} url对象
 **/
let parseUrl = function(url) {
    const aEle = document.createElement("a");
    aEle.href = url;
    let data = {
        protocol: aEle.protocol,
        host: aEle.host,
        origin: aEle.origin,
        pathname: aEle.pathname,
        search: aEle.search,
        hash: aEle.hash,
    };
    aEle.remove();
    return data;
};

/**
 * 参数字符串转参数对象，示例：("a=1&b=2") => {a: "1", b: "2"}
 * @param {String} params 参数字符串
 * @return {Object} 参数对象
 **/
let parseParams = function(params) {
    let obj = {};
    params.replace(/([^?&=]+)=([^&]+)/g, (_, k, v) => (obj[k] = v));
    return obj;
};

/**
 * 参数对象转参数字符串，示例：({a: 1, b: 2}) => "a=1&b=2"
 * @param {Object} params 参数对象
 * @return {String} 参数字符串
 **/
let stringifyParams = function(params) {
    let str = "";
    for (let key in params) {
        str += "&" + key + "=" + params[key];
    }
    return str.substring(1);
};

/**
 * 复制文本
 * @param {String} text 待复制文本
 * @return {Boolean} 是否复制成功
 **/
let copyText = function(text) {
    const $input = document.createElement("input");
    document.body.appendChild($input);
    $input.value = text;
    $input.select();
    const result = document.execCommand("copy");
    $input.remove();
    return result;
};