数组中删除一个或者多个数组对象

   var arr1 = [
      {a: "111", b:"222",c:1,d:6},
      {a:"333", b:"444",c:11,d:56},
      {a:"555", b: "666",c:21,d:46},
      {a: "777", b:"888",c:13,d:36},
      {a:"999", b:"000",c:14,d:26},
      {a:"110", b: "220",c:51,d:16}
    ]
    var arr2 = [
    {a:"333", b:"444",c:11,d:56},
      {a:"555", b: "666",c:21,d:46},
      {a: "777", b:"888",c:13,d:36},
      {a:"999", b:"000",c:14,d:26},
      
    ]
    function removeList(originList, delList) {
      var newArr = originList
      delList.forEach((Element1, index1) => {
        originList.forEach((Element2, index2) => {
          if (isObjectValueEqual(Element1, Element2)) {
            newArr.splice(index2, 1)
          }
        })
      })
      originList = newArr
      return originList
    }
    function isObjectValueEqual(a, b) {
      var aProps = Object.getOwnPropertyNames(a);
      var bProps = Object.getOwnPropertyNames(b);
      if (aProps.length != bProps.length) {
        return false;
      }
      for (var i = 0; i < aProps.length; i++) {
        var propName = aProps[i]
        var propA = a[propName]
        var propB = b[propName]
        if ((typeof (propA) === 'object')) {
          if (this.isObjectValueEqual(propA, propB)) {
            return true
          } else {
            return false
          }
        } else if (propA !== propB) {
          return false
        } else { }
      }
      return true
    }
    console.log(removeList(arr1,arr2));
// 不改变原数组的情况
    console.log(removeList(JSON.stringify(arr1),arr2));