获取url参数

获取url参数，键值对形式返回。

const getParams = () => {
    
    let params = window.location.search;
    let obj = {};

    if (params.indexOf('?') != -1) {

      let str = params.substr(1).split('&');

      for (let i = 0; i < str.length; i++) {
        obj[str[i].split('=')[0]] = unescape(str[i].split('=')[1]);
      }
    }

    return obj;
}