From 6b194b8a305de7b1ce603983129f2bad60431c9a Mon Sep 17 00:00:00 2001
From: Uma Chandran <uma.chandran@rangle.io>
Date: Mon, 26 Mar 2018 15:39:10 -0400
Subject: [PATCH] adds example solutions for the observables homework

---
 observables/exercise-1/observables.js | 4 +++-
 observables/exercise-2/observables.js | 4 +++-
 observables/exercise-3/observables.js | 5 +++++
 observables/exercise-4/observables.js | 4 ++++
 4 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/observables/exercise-1/observables.js b/observables/exercise-1/observables.js
index 10af848..a86a6b9 100644
--- a/observables/exercise-1/observables.js
+++ b/observables/exercise-1/observables.js
@@ -7,4 +7,6 @@ const clickStream = Observable.fromEvent(theButton, "click");
   Exercise 1:
   We've created an Observable stream from the button's click event above. 
   Subscribe to the stream and print out the emitted value.
-*/
\ No newline at end of file
+*/
+
+clickStream.subscribe(value => console.log('click event: ', value));
diff --git a/observables/exercise-2/observables.js b/observables/exercise-2/observables.js
index 9f29504..dbb121c 100644
--- a/observables/exercise-2/observables.js
+++ b/observables/exercise-2/observables.js
@@ -13,4 +13,6 @@ const clickStream = Observable.fromEvent(theButton, "click");
     "Dog #1" after the first click, "Dog #2" after the second, and so on.
 */
 
-
+clickStream
+  .map((value, index) => `Dog #${index + 1}`)
+  .subscribe(dog => console.log(dog));
diff --git a/observables/exercise-3/observables.js b/observables/exercise-3/observables.js
index 08e6feb..8af1273 100644
--- a/observables/exercise-3/observables.js
+++ b/observables/exercise-3/observables.js
@@ -17,3 +17,8 @@ const clickStream = Observable.fromEvent(theButton, "click");
     No output after the fourth click,
     "Dog #5" after the fith click, and so on.
 */
+
+clickStream
+  .map((value, index) => `Dog #${index + 1}`)
+  .filter((value, index) => index % 2 === 0)
+  .subscribe(dog => console.log(dog));
diff --git a/observables/exercise-4/observables.js b/observables/exercise-4/observables.js
index d8706a4..8aaa351 100644
--- a/observables/exercise-4/observables.js
+++ b/observables/exercise-4/observables.js
@@ -19,3 +19,7 @@ const clickStream = Observable.fromEvent(theButton, "click");
     If you click the button extra times before each 1000ms is up, we shouldn't see a generated dog.
 */
 
+clickStream
+  .throttleTime(1000)
+  .map((value, index) => `Dog #${index + 1}`)
+  .subscribe(dog => console.log(dog));
\ No newline at end of file