text: import { obj } from '../util';
  
  const { isPlainObject } = obj;
  
  /**
   * 过滤 undefined 类型的值
   * @param  {*}  obj
   * @return {Object}
   */
  export function filterUndefinedValue(object) {
      if (!isPlainObject(object)) {
          return object;
      }
  
      const obj = {};
  
      Object.keys(object).forEach(key => {
          const value = object[key];
  
          if (value !== undefined) {
              obj[key] = value;
          }
      });
  
      return obj;
  }
  
  /**
   * 从 obj 中去除 subObj
   * @param  {*}  obj
   * @param  {*}  subObj
   * @return {Object}
   */
  export function stripObject(obj, subObj) {
      const newObject = {};
  
      Object.keys(obj).forEach(key => {
          if (!(key in subObj)) {
              newObject[key] = obj[key];
          }
      });
      return newObject;
  }
  