This library serves as a bridge between the Reactive Extensions for JavaScript (RxJS) and AngularJS.
With this library, you will be able to do such things as easily watch values as they change, as observable sequences such as:
angular.module('example', ['rx'])
.controller('AppCtrl', function($scope, observeOnScope) {
// Listen for changes on the name
observeOnScope($scope, 'name').subscribe(function(change) {
$scope.observedChange = change;
$scope.newValue = change.newValue;
$scope.oldValue = change.oldValue;
});
});And with your HTML markup you can use it like this:
<div class="container" ng-app="example" ng-controller="AppCtrl">
<h2>Reactive Angular</h2>
<ul class="list-unstyled">
<li>observedChange {{observedChange}}</li>
<li>newValue: {{newValue}</li>
<li>oldValue: {{oldValue}}</li>
</ul>
<input type="text" ng-model="name" />
</div>
Another example is where we can create an Observable sequence from such things ng-click expressions where we can search Wikipedia:
angular.module('example', ['rx'])
.controller('AppCtrl', function($scope, $http, rx) {
function searchWikipedia (term) {
var deferred = $http({
url: "http://en.wikipedia.org/w/api.php?&callback=JSON_CALLBACK",
method: "jsonp",
params: {
action: "opensearch",
search: term,
format: "json"
}
});
return rx.Observable
.fromPromise(deferred)
.map(function(response){ return response.data[1]; });
}
$scope.search = '';
$scope.results = [];
/*
Creates a "click" function which is an observable sequence instead of just a function.
*/
$scope.$createObservableFunction('click')
.map(function () { return $scope.search; })
.flatMapLatest(searchWikipedia)
.subscribe(function(results) {
$scope.results = results;
});
});And the HTML markup you can simply just use a ng-click directive much as you have before, but now it is an Observable sequence.
<div class="container" ng-app="example" ng-controller="AppCtrl">
<input type="text" ng-model="search">
<button ng-click="click()">Search</button>
<ul>
<li ng-repeat="result in results">{{result}}</li>
</ul>
</div>
This only scratches the surface of what is possible when you combine the two libraries together.
You can find the documentation here as well as examples here and plenty of unit tests.
There are a number of ways to get started with RxJS.
git clone https://github.com/Reactive-Extensions/rx.angular.js.git
cd ./rx.angular.js
Installing with NPM
npm install rx-angular
npm install -g rx-angular
Installing with Bower
bower install rx-angular
Installing with Jam
jam install rx-angular
Installing All of RxJS via NuGet
Install-Package RxJS-Bridges-Angular
There are lots of ways to contribute to the project, and we appreciate our contributors.
You can contribute by reviewing and sending feedback on code checkins, suggesting and trying out new features as they are implemented, submit bugs and help us verify fixes as they are checked in, as well as submit code fixes or code contributions of your own. Note that all code submissions will be rigorously reviewed and tested by the Rx Team, and only those that meet an extremely high bar for both quality and design/roadmap appropriateness will be merged into the source.
Copyright (c) Microsoft Open Technologies, Inc. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.