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### `Rx.Observable.ofArrayChanges(array)`
[Ⓢ](https://github.com/Reactive-Extensions/RxJS/blob/master/src/core/linq/observable/ofarraychanges.js "View in source")
Creates an Observable sequence from changes to an array using `Array.observe`.
#### Arguments
1. `array` *(`Array`)*: The array to observe changes using `Array.observe`
#### Returns
*(`Observable`)*: An observable sequence containing changes to an array from `Array.observe`.
#### Example
```js
var arr = [1,2,3];
var source = Rx.Observable.ofArrayChanges(arr);
var subscription = source.subscribe(
function (x) {
console.log('Next: %s', x);
},
function (err) {
console.log('Error: %s', err);
},
function () {
console.log('Completed');
});
arr.push(4);
// => Next: {type: "splice", object: Array[4], index: 3, removed: Array[0], addedCount: 1}
```
### Location
File:
- [`/src/core/linq/observable/ofarraychanges.js`](https://github.com/Reactive-Extensions/RxJS/blob/master/src/core/linq/observable/ofarraychanges.js)
Dist:
- [`rx.all.js`](https://github.com/Reactive-Extensions/RxJS/blob/master/dist/rx.all.js)
Prerequisites:
- None
NPM Packages:
- None
NuGet Packages:
- [`RxJS-Complete`](http://www.nuget.org/packages/RxJS-Complete)
Unit Tests:
- [`/tests/observable/ofarraychanges.js`](https://github.com/Reactive-Extensions/RxJS/blob/master/tests/observable/ofarraychanges.js)
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