Update README.md

pull/2/head
Louis Chatriot 12 years ago
parent 62d257b9af
commit 1cf09144ba
  1. 22
      README.md

@ -135,6 +135,28 @@ db.update({ planet: 'Pluton' }, { $set: { inhabited: false } }, { upsert: true }
}); });
``` ```
### Removing documents
`db.remove(query, options, callback)` will remove all documents matching `query` according to `options`
* `query` is the same as the ones used for finding and updating
* `options` only one option for now: `multi` which allows the removal of multiple documents if set to true. Default is false
* `callback` is optional, signature: err, numRemoved
```javascript
// Let's use the same example collection as in the "finding document" part
// Remove one document from the collection
// options set to {} since the default for multi is false
db.remove({ _id: 'id2' }, {}, function (err, numRemoved) {
// numRemoved = 1
});
// Remove multiple documents
db.remove({ system: 'solar' }, { multi: true }, function (err, numRemoved) {
// numRemoved = 3
// All planets from the solar system were removed
});
```
## Performance ## Performance
### Speed ### Speed

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