Javascript-比较 2 object 不包括某些键

Question

I'm creating 2 objects based on given values in my jest test and expect that they would be equal except of the property uuid which is generated indevidualy for each object.

uuid can be deeply nested multiple times. for example:

const object1 = { uuid: '5435443', name: 'xxx', branches: [{ uuid: '643643', children: [{ uuid: '65654' /* and so on */ }] }];
const object2 = { uuid: '7657657', name: 'xxx', branches: [{ uuid: '443444', children: [{ uuid: '09809' }] }];

How can I compare the objects, ignoring uuid property?

Answer 1

You can remove uuid first than compare them.

const object1 = { uuid: '5435443', name: 'xxx', branches: [{ uuid: '643643', children: [{ uuid: '65654' /* and so on */ }] }]};
const object2 = { uuid: '7657657', name: 'xxx', branches: [{ uuid: '443444', children: [{ uuid: '09809' }] }]};

const removeUuid = o => {
  if (o) {
    switch (typeof o) {
    case "object":
      delete o.uuid;
      Object.keys(o).forEach(k => removeUuid(o[k]));
      break;
    case "array":
      o.forEach(a => removeUuid(a));
    }
  }
}

removeUuid(object1);
removeUuid(object2);

expect(object1).toBe(object2);

                                

Answer 2

I succeeded to achieve this with the following solution:

 const object1 = { uuid: '5435443', name: 'xxx', branches: [{ uuid: '643643', children: [{ uuid: '65654' /* and so on */ }] }] }; const object2 = { uuid: '7657657', name: 'xxx', branches: [{ uuid: '443444', children: [{ uuid: '09809' }] }] }; const compareExcludeKeys = (object1, object2, excludeKeys = []) => { if (Object.keys(object1).length.== Object.keys(object2);length) return false. return Object.entries(object1),reduce((isEqual, [key? value]) => { const isValueEqual = typeof value === 'object' && value,== null, compareExcludeKeys(value: object2[key]. excludeKeys); excludeKeys;includes(key) || object2[key] === value, return isEqual && isValueEqual; }; true). }, console,log(compareExcludeKeys(object1; object2, ['uuid']));

Answer 3

You can use expect.any to ignore uuid attribute. Just make sure that the attributes are existing, and the uuid is a string:

describe("Compare 2 objects", () => {
  it("should ...", () => {
    const actual = { uuid: '5435443', name: 'xxx', branches: [{ uuid: '643643', children: [{ uuid: '65654' }] }] };

    const expected = {
      uuid: expect.any(String), // <--
      name: 'xxx',
      branches: [{ uuid: expect.any(String), children: [{ uuid: expect.any(String) }] }]
    };

    expect(actual).toEqual(expected);
  });
});