Updated api-reactive doc.

docs/api-reactive.md

@@ -1,7 +1,7 @@
 # Reactive API
 
-## s.stream
-__object s.stream( )__
+## s.Stream
+__object s.Stream( )__
 
 Returns a Sling stream. A stream is a sequence of values over time and the associated operations which are automatically applied as those values change.
 
@@ -10,7 +10,7 @@ Example stream usage using Sling XHR API:
 ```javascript
 s.get('https://jsonplaceholder.typicode.com/posts').then(xhrResp => {
 	let postArr = JSON.parse(xhrResp.response);
-	let postStream = s.stream().from(postArr).transform(function(arr) {
+	let postStream = s.Stream().from(postArr).transform(function(arr) {
 		return arr.filter(v => v.userId === 1);
 	}).transform(function(arr) {
 		return arr.filter(v => v.body.includes('quo'));
@@ -21,7 +21,7 @@ s.get('https://jsonplaceholder.typicode.com/posts').then(xhrResp => {
 Equivalent stream usage using preexisting stream object and Sling XHR API:
 
 ```javascript
-let postStream2 = s.stream();
+let postStream2 = s.Stream();
 postStream2.transform(function(arr) {
 	return arr.filter(v => v.userId === 1);
 }).transform(function(arr) {
@@ -83,7 +83,7 @@ __object from ( newArray )__
 
 Set stream data to ```newArray``` and apply all existing transformers. Returns the stream.
 
-## s.observable
+## s.Observable
 __object s.observable( array )__
 
 Returns a Sling observable. An observable is an array which may be listened to.
@@ -92,13 +92,13 @@ Example observable usage:
 
 ```javascript
 let myArray = [1, 2, 3];
-let myObservable = s.observable(myArray);
+let myObservable = s.Observable(myArray);
 myObservable.subscribe(function(arr) {
-	console.log('New length: '  +  arr.length);
+	console.log('New length: ' + arr.length);
 });
 
-myObservable.getData().push(1);
-obs.getData()[myObservable.getData().length] =  3;
+myObservable.getData().push(4);
+obs.getData()[myObservable.getData().length] = 5;
 ```
 
 ## Observable Functions
@@ -122,3 +122,45 @@ Remove all subscribed functions. Returns the observable.
 __[ ] getData( )__
 
 Get the underlying array data.
+
+## s.BehaviorSubject
+__object s.BehaviorSubject( value )__
+
+Returns a Sling behavior subject. A behavior subject is a value that emits changes to subscribers.
+
+Example behavior subject usage:
+
+```javascript
+let subject = s.BehaviorSubject(5);
+subject.next(subject.getData() + 1);
+let value = subject.getData(); // 6
+
+subject.subscribe(function (value) { console.log('Value: ' + value); });
+```
+
+## BehaviorSubject Functions
+
+## subscribe
+__void subscribe ( listenerFunction )__
+
+Listener function will be automatically called whenever the subject's value changes. Returns the behavior subject.
+
+## clearSubscription
+__object clearSubscription( functionToClear )__
+
+Remove ```functionToClear``` from the list of subscribed functions. Returns the behavior subject.
+
+## clearSubscriptions
+__object clearSubscriptions( )__
+
+Remove all subscribed functions. Returns the behavior subject.
+
+## next
+__object next( value )__
+
+Set the next value of the subject. All subscribers are automatically called. Returns the behavior subject.
+
+## getData
+__[ ] getData( )__
+
+Get the underlying value.