1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
|
## just-diff
Part of a [library](../../../../) of zero-dependency npm modules that do just do one thing.
Guilt-free utilities for every occasion.
[Try it now](http://anguscroll.com/just/just-diff)
Return an object representing the difference between two other objects
Pass converter to format as http://jsonpatch.com
```js
import {diff} from 'just-diff';
const obj1 = {a: 4, b: 5};
const obj2 = {a: 3, b: 5};
const obj3 = {a: 4, c: 5};
diff(obj1, obj2);
[
{ "op": "replace", "path": ['a'], "value": 3 }
]
diff(obj2, obj3);
[
{ "op": "remove", "path": ['b'] },
{ "op": "replace", "path": ['a'], "value": 4 }
{ "op": "add", "path": ['c'], "value": 5 }
]
// using converter to generate jsPatch standard paths
import {diff, jsonPatchPathConverter} from 'just-diff'
diff(obj1, obj2, jsonPatchPathConverter);
[
{ "op": "replace", "path": '/a', "value": 3 }
]
diff(obj2, obj3, jsonPatchPathConverter);
[
{ "op": "remove", "path": '/b' },
{ "op": "replace", "path": '/a', "value": 4 }
{ "op": "add", "path": '/c', "value": 5 }
]
// arrays
const obj4 = {a: 4, b: [1, 2, 3]};
const obj5 = {a: 3, b: [1, 2, 4]};
const obj6 = {a: 3, b: [1, 2, 4, 5]};
diff(obj4, obj5);
[
{ "op": "replace", "path": ['a'], "value": 3 }
{ "op": "replace", "path": ['b', 2], "value": 4 }
]
diff(obj5, obj6);
[
{ "op": "add", "path": ['b', 3], "value": 5 }
]
// nested paths
const obj7 = {a: 4, b: {c: 3}};
const obj8 = {a: 4, b: {c: 4}};
const obj9 = {a: 5, b: {d: 4}};
diff(obj7, obj8);
[
{ "op": "replace", "path": ['b', 'c'], "value": 4 }
]
diff(obj8, obj9);
[
{ "op": "replace", "path": ['a'], "value": 5 }
{ "op": "remove", "path": ['b', 'c']}
{ "op": "add", "path": ['b', 'd'], "value": 4 }
]
```
|
