output-new-only not showing the right deltas for arrays

[liuliu-dev]

have issues with diff deltas for arrays with outputNewOnly

• compare these two:

const a= '{
	"array": [
		1,
		2,
		3
	],
	"boolean": true,
	"level2": {
		"array": [
			1,
			2,
			3
		],
		"boolean": true,
		"null": null,
		"number": 123,
		"object": {
			"a": "b",
			"c": "d",
			"e": "f"
		},
		"string": "Hello World"
	},
	"null": null,
	"number": 123,
	"object": {
		"a": "b",
		"c": "d",
		"e": "f"
	},
	"string": "Hello World"
}'

and

const b='{
	"array": [
		1,
		2,
		3
	],
	"boolean": true,
	"level2": {
		"array": [
			1,
			2,
			4
		],
		"boolean": true,
		"null": null,
		"number": 123,
		"object": {
			"a": "b",
			"c": "d",
			"e": "f"
		},
		"string": "Hello World"
	},
	"null": null,
	"number": 123,
	"object": {
		"a": "b",
		"c": "d",
		"e": "a"
	},
	"string": "Hello World"
}'

the code I'm running is:
JSON.stringify(diff(JSON.parse(a),JSON.parse(b), { outputNewOnly: true }))

the result I got:

{
   "level2": {
   	"array": [
   		[
   			" "
   		],
   		[
   			" "
   		],
                         [
                           "-",
                           2
                         ],
                         [
                           "+",
                           4
                         ],
   	]
   },
   "object": {
   	"e": "f"
   }
}

can I get something like this?

{
   "level2": {
   	"array": [
   		...,
                        [
                           "-",
                           2
                         ],
   		[
   			"+",
   			4
   		]
   	]
   },
   "object": {
   	"e": "f"
   }
}