Index for adding multiple things in an array before and after existing.

[dallinbjohnson]

the index for the items that are added after the item that is already in the array is the wrong index.

example:

odiff({ a: ['b'] }, { a: ['a', 'b', 'c', 'd'] })

result:

[ { "type": "add", "path": [ "a" ], "index": 1, "vals": [ "c", "d" ] }, { "type": "add", "path": [ "a" ], "index": 0, "vals": [ "a" ] } ]

the index of "vals": [ "c", "d" ] should be 2.

[fresheneesz]

The indexes are correct. The way they're done is so that if you go through each diff item in order and do what it says to the first object, you'll get the second object as a result. Inserting ['c', 'd'] at index 1 of object.a will give you {a:['b','c','d']}, and then inserting ['a'] at index 0 gives you {a:['a','b','c','d']} as you would expect.

[dallinbjohnson]

That makes more sense why you did what yall did. I am writing some code that diffs two objects and then async iterates over the changes and sends database requests using that index and it comes out wrong sometimes because of it. I think I will have to change my code to be synchronous to account for how you are handling this index problem for me.