解析 URL Params 为对象

let url = 'http://www.domain.com/?user=anonymous&id=123&id=456&city=%E5%8C%97%E4%BA%AC&enabled';

parseParam(url)

/* 结果

{ user: 'anonymous',

  id: [ 123, 456 ], // 重复出现的 key 要组装成数组，能被转成数字的就转成数字类型

  city: '北京', // 中文需解码

  enabled: true, // 未指定值得 key 约定为 true

}

*/

function parseParam(url) {

  const paramsStr = /.+\?(.+)$/.exec(url)[1]; // 将 ? 后面的字符串取出来

  const paramsArr = paramsStr.split('&'); // 将字符串以 & 分割后存到数组中

  let paramsObj = {};

  // 将 params 存到对象中

  paramsArr.forEach(param => {

    if (/=/.test(param)) { // 处理有 value 的参数

      let [key, val] = param.split('='); // 分割 key 和 value

      val = decodeURIComponent(val); // 解码

      val = /^\d+$/.test(val) ? parseFloat(val) : val; // 判断是否转为数字

      if (paramsObj.hasOwnProperty(key)) { // 如果对象有 key，则添加一个值

        paramsObj[key] = [].concat(paramsObj[key], val);

      } else { // 如果对象没有这个 key，创建 key 并设置值

        paramsObj[key] = val;

      }

    } else { // 处理没有 value 的参数

      paramsObj[param] = true;

    }

  })

  return paramsObj;

}

const getUrlKey = function (name) {

  return (

    decodeURIComponent(

      (new RegExp("[?|&]" + name + "=" + "([^&;]+?)(&|#|;|$)").exec(

        location.href

      ) || [, ""])[1].replace(/\+/g, "%20")

    ) || null

  )

}

/**

 * 封装检验数据类型

 */

 const isType = type => target => `[object ${type}]` ===              Object.prototype.toString.call(target)

  const isArray = isType('Array')

  console.log(isArray(''))

/**

 * 存储localStorage

 */

export const setStore = (name, content) => {

    if (!name) return

    if (typeof content !== 'string') {

        content = JSON.stringify(content)

    }

    window.localStorage.setItem(name, content)

}

/**

 * 获取localStorage

 */

export const getStore = name => {

    if (!name) return

    return window.localStorage.getItem(name)

}

/**

 * 删除localStorage

 */

export const removeStore = name => {

    if (!name) return

    window.localStorage.removeItem(name)

}

/**

 * 设置cookie

 */

export const setCookie = (key, value, day) => {

    const date = new Date()

    date.setDate(date.getDate() + day)

    document.cookie = key + '=' + value + ';expires=' + date + ';path=/'

}

/**

 * 获取cookie

 */

export const getCookie = cname => {

    const name = cname + '='

    const ca = document.cookie.split(';')

    for (let i = 0; i < ca.length; i++) {

        let c = ca[i]

        while (c.charAt(0) === ' ') c = c.substring(1)

        if (c.indexOf(name) !== -1) return c.substring(name.length, c.length)

    }

    return ''

}

/**

 * 删除cookie

 */

export const delCookie = name => {

    const exp = new Date()

    exp.setTime(exp.getTime() - 1)

    const cval = getCookie(name)

    if (cval != null) {

        document.cookie = name + '=' + cval + ';expires=' + exp.toGMTString() + ';path=/'

    }

}

/**

 * 获取url参数

 */

export const getUrlId = name => {

    const reg = new RegExp('(^|&)' + name + '=([^&]*)(&|$)')

    const r = window.location.search.substr(1).match(reg)

    if (r != null) return unescape(r[2])

    return null

}