Reactive-Extensions/RxJS

# This is RxJS v 4. [Find the latest version here](https://github.com/reactivex/rxjs)
### `Rx.Observable.prototype.sequenceEqual(second, [comparer])`
[Ⓢ](https://github.com/Reactive-Extensions/RxJS/blob/master/src/core/linq/observable/sequenceequal.js "View in source")
 
Determins whether two sequences are equal by comparing the elements pairwise using a specified equality comparer.
 
#### Arguments
1. `second` *(`Observable` | `Promise` | `Array`)*:  Second observable sequence, Promise or array to compare.
2. `[comparer]` *(`Function`)*: Comparer used to compare elements of both sequences.
 
#### Returns
*(`Observable`)*: An observable sequence that contains a single element which indicates whether both sequences are of equal length and their corresponding elements are equal according to the specified equality comparer.
 
#### Example
```js
var source1 = Rx.Observable.return(42);
var source2 = Rx.Observable.return(42);
 
var source = source1.sequenceEqual(source2);
 
var subscription = source.subscribe(
    function (x) {
        console.log('Next: ' + x);
    },
    function (err) {
        console.log('Error: ' + err);
    },
    function () {
        console.log('Completed');
    });
 
// => Next: true
// => Completed
```
 
### Location
 
File:
- [`/src/core/linq/observable/sequenceequal.js`](https://github.com/Reactive-Extensions/RxJS/blob/master/src/core/linq/observable/sequenceequal.js)
 
Dist:
- [`rx.all.js`](https://github.com/Reactive-Extensions/RxJS/blob/master/dist/rx.all.js)
- [`rx.all.compat.js`](https://github.com/Reactive-Extensions/RxJS/blob/master/dist/rx.all.compat.js)
- [`rx.aggregates.js`](https://github.com/Reactive-Extensions/RxJS/blob/master/dist/rx.aggregates.js)
 
Prerequisites:
- [`rx.lite.js`](https://github.com/Reactive-Extensions/RxJS/blob/master/dist/rx.js) | [`rx.compat.js`](https://github.com/Reactive-Extensions/RxJS/blob/master/dist/rx.compat.js) | [`rx.lite.js`](https://github.com/Reactive-Extensions/RxJS/blob/master/dist/rx.lite.js) | [`rx.lite.compat.js`](https://github.com/Reactive-Extensions/RxJS/blob/master/dist/rx.lite.compat.js)
 
NPM Packages:
- [`rx`](https://www.npmjs.org/package/rx)
 
NuGet Packages:
- [`RxJS-All`](http://www.nuget.org/packages/RxJS-All/)
- [`RxJS-Aggregates`](http://www.nuget.org/packages/RxJS-Aggregates/)
 
Unit Tests:
- [`/tests/observable/sequenceequal.js`](https://github.com/Reactive-Extensions/RxJS/blob/master/tests/observable/sequenceequal.js)