# pull-kvdiff

diff key-value streams

```js
var pull = require('pull-stream')
var kvdiff = require('pull-kvdiff')

pull(
  kvdiff([
    pull.values([
      {key: 'a', value: 1},
      {key: 'b', value: 2},
      {key: 'c', value: 3},
    ]),
    pull.values([
      {key: 'a', value: 1},
      {key: 'b', value: 3},
      {key: 'd', value: 3},
    ])
  ], 'key'),
  pull.log()
)
```
output:
```json
{ key: 'b',
  values: [ { key: 'b', value: 2 }, { key: 'b', value: 3 } ],
  diff: { value: [ 2, 3 ] } }
{ key: 'c',
  values: [ { key: 'c', value: 3 },  ],
  diff: { key: [ 'c' ], value: [ 3 ] } }
{ key: 'd',
  values: [ , { key: 'd', value: 3 } ],
  diff: { key: [ , 'd' ], value: [ , 3 ] } }
```

#### `kvdiff(sources, keyProp) → source`

## License

Copyright (c) 2016 Charles Lehner

Usage of the works is permitted provided that this instrument is
retained with the works, so that any entity that uses the works is
notified of this instrument.

DISCLAIMER: THE WORKS ARE WITHOUT WARRANTY.