Check if the two operands are of the same type before interpreting a missing prop as a remove op

[alshakero]

Fixes #31

[tomalec]

It's rather an array nested in an object, than deep array, as it's only shallow - one level array of primitives.

[tomalec]

as in https://github.com/Starcounter-Jack/JSON-Patch/pull/205/files#r192806464

[tomalec]

Could you add some code comments about what's happening here? Why for two arrays or two non-arrays it's a delete, but for array and non-array, it's a replace?

[alshakero]

I'll add something of the effect of: Because the replace is for the whole obj, not for obj[key].

[robertdumitrescu]

When will be this merged? I created a test in mocha and the array replacement is not the only problem.
`
it('should getDiff and by applying the diff changes to get the modified object', async () => {

        let firstNestedObject = [
            {
                title: 'Products',
                title2: 'Products2',
                children: [
                    {
                        title: 'Electronics',
                        children: [
                            {
                                title: 'Audio-Video',
                                children: [
                                    {
                                        title: 'Game consoles',
                                        children: [
                                            {
                                                title: 'Xbox 360',
                                                date: new Date(2018, 11, 24, 10, 33, 30)
                                            },
                                            {
                                                title: 'PlayStation 4',
                                            },
                                            {
                                                title: 'Sega',
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                title: 'Mobile devices'
                            }
                        ]
                    },
                    {
                        title: 'Cars'
                    }
                ]
            },
            {
                title: 'News',
                randomDate: new Date(2018, 11, 24, 10, 33, 30),
                children: [
                    {
                        title: 'Technology',
                        children: [
                            {
                                title: 'CES 2018'
                            },
                            {
                                title: 'Why PHP sucks'
                            }
                        ]
                    },
                    {
                        title: 'Environment',
                        subObj: {
                            prop1: 'randomProp'
                        }
                    }
                ]
            }
        ];


        let secondModifiedNestedObject = [
            {
                title: 'Products Modified - =====>HEEEREE',
                title2: false,
                children: [
                    {
                        title: 'Electronics',
                        children: [
                            {
                                title: 'Audio-Video',
                                extraProp: 1,
                                extraProp00: 1413431431431413,
                                extraProp2: [
                                    'bla',
                                    {
                                        extraSubSneakyProp: 'Super Sneaky Prop =====> HEEEERE'
                                    }
                                ],
                                children: [
                                    {
                                        title: 'Game consoles',
                                        children: [
                                            {
                                                title: 'Xbox 360',
                                                date: null
                                            },
                                            {
                                                title22: 'Sega',
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                title: 'Mobile devices'
                            }
                        ]
                    },
                    {
                        title: true
                    }
                ]
            },
            {
                title: 'News',
                randomDate: new Date(2018, 11, 9, 10, 36, 30),
                children: [
                    {
                        title: null,
                        children: [
                            {
                                title: 'CES 2018'
                            },
                            {
                                title: 'Why PHP sucks'
                            },
                            {
                                title: 'Some new article,',
                                customSUbArray: [
                                    {
                                        subObject: 'nananana',
                                        _weirdProp: 'nanana2'
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        title: 'Environment',
                        subObj: [
                            1, 3, 5
                        ]
                    }
                ]
            }
        ];

        let differences = GenericObjectHelper.getRFC6902Diff(firstNestedObject, secondModifiedNestedObject);
        let actualModifiedObject = GenericObjectHelper.applyRFC6902Diff(firstNestedObject, differences);

        expect(actualModifiedObject).to.deep.equal(secondModifiedNestedObject);
    });

`

And it fails on both getting the diff out of a Date object and also when an object is replace with an array.
I am currently doing a spike for this package since we need to develop something similar to git versioning but for Elastic Search documents. Any update?

P.S. get and apply are literally just wrappers around functions.

`
static getRFC6902Diff(firstObject, secondObject) {
return Jsonpatch.compare(firstObject, secondObject);
}

static applyRFC6902Diff(object, differences) {
    let patchedObject = Jsonpatch.applyPatch(object, differences).newDocument;
    return patchedObject;
}

`

[robertdumitrescu]

Ah... I saw your comments in another issue about Date objects. Fair enough. Is not the focus of this plugin. Apologies. But the array/object replace is a must have though.