收集一些常用的js工具方法

获取 url 相对路径：

/**
 * 获取相对路径
 * @method getRelativePath
 * @return {*} 返回主机地址
 * @example http://172.19.82.130:8080/uploadfiles/summary/7c54efed-fbc0-49c0-8568-62b07b5c1816/temp/3.png
 */
let getRelativePath = url => {
  let str = url.split("http://")[1]; //172.19.82.130:8080/uploadfiles/summary/7c54efed-fbc0-49c0-8568-62b07b5c1816/temp/3.png
  if(str){
    let pos = str.indexOf("/"); //获取 相对路径 在 str 的索引号,如:18
    let relativePath = str.substring(pos + 1, url.length); //获取相对路径,如: uploadfiles/summary/7c54efed-fbc0-49c0-8568-62b07b5c1816/temp/3.png
    return relativePath;
  }
};
export { getRelativePath };

获取地址栏参数：

   getQueryString() {
        const { href } = location;
        let param = href.indexOf('?') !== -1 ? href.split('?')[1] : {};
        let _obj = {};
        Object.keys(param).length &&
            param.split('&').forEach(item => {
                const [key, value] = item.split('=');
                return (_obj[key] = value);
            });
        return _obj;
    },