diff --git a/.github/assert-contributors.sh b/.github/assert-contributors.sh
index b3baa572..ef8f2a79 100755
--- a/.github/assert-contributors.sh
+++ b/.github/assert-contributors.sh
@@ -9,7 +9,6 @@ fi
 
 SCRIPT_PATH=$( cd "$(dirname "${BASH_SOURCE[0]}")" ; pwd -P )
 
-CONTRIBUTORS=()
 EXCLUDED_CONTIBUTORS=('John R. Bradley')
 MISSING_CONTIBUTORS=()
 
diff --git a/examples/data-channels-close/jsfiddle/demo.js b/examples/data-channels-close/jsfiddle/demo.js
index 2ddf2771..230a41e4 100644
--- a/examples/data-channels-close/jsfiddle/demo.js
+++ b/examples/data-channels-close/jsfiddle/demo.js
@@ -18,41 +18,39 @@ window.createDataChannel = name => {
     log(`${fullName}: has opened`)
     dc.onmessage = e => log(`${fullName}: '${e.data}'`)
 
-    let ul = document.getElementById("ul-open");
-    let li = document.createElement('li');
+    let ul = document.getElementById('ul-open')
+    let li = document.createElement('li')
     li.appendChild(document.createTextNode(`${fullName}: `))
-    
-    let btnSend = document.createElement("BUTTON")
-    btnSend.appendChild(document.createTextNode("Send message"))
+
+    let btnSend = document.createElement('BUTTON')
+    btnSend.appendChild(document.createTextNode('Send message'))
     btnSend.onclick = () => {
       let message = document.getElementById('message').value
       if (message === '') {
         return alert('Message must not be empty')
       }
-    
+
       dc.send(message)
     }
     li.appendChild(btnSend)
 
-    let btnClose = document.createElement("BUTTON")
-    btnClose.appendChild(document.createTextNode("Close"))
+    let btnClose = document.createElement('BUTTON')
+    btnClose.appendChild(document.createTextNode('Close'))
     btnClose.onclick = () => {
       dc.close()
       ul.removeChild(li)
     }
     li.appendChild(btnClose)
-   
+
     dc.onclose = () => {
       log(`${fullName}: closed.`)
       ul.removeChild(li)
     }
 
-    ul.appendChild(li);
+    ul.appendChild(li)
   }
 }
 
-let sendChannel = window.createDataChannel('foo')
-
 pc.oniceconnectionstatechange = e => log(`ICE state: ${pc.iceConnectionState}`)
 pc.onicecandidate = event => {
   if (event.candidate === null) {
@@ -63,7 +61,6 @@ pc.onicecandidate = event => {
 pc.onnegotiationneeded = e =>
   pc.createOffer().then(d => pc.setLocalDescription(d)).catch(log)
 
-
 window.startSession = () => {
   let sd = document.getElementById('remoteSessionDescription').value
   if (sd === '') {
diff --git a/examples/gstreamer-receive/jsfiddle/demo.js b/examples/gstreamer-receive/jsfiddle/demo.js
index 42f9dae5..197edf4b 100644
--- a/examples/gstreamer-receive/jsfiddle/demo.js
+++ b/examples/gstreamer-receive/jsfiddle/demo.js
@@ -11,7 +11,7 @@ var log = msg => {
   document.getElementById('logs').innerHTML += msg + '<br>'
 }
 
-navigator.mediaDevices.getUserMedia({video: true, audio: true})
+navigator.mediaDevices.getUserMedia({ video: true, audio: true })
   .then(stream => pc.addStream(document.getElementById('video1').srcObject = stream))
   .catch(log)
 
diff --git a/examples/gstreamer-send/jsfiddle/demo.js b/examples/gstreamer-send/jsfiddle/demo.js
index adf82713..8e0ca2ed 100644
--- a/examples/gstreamer-send/jsfiddle/demo.js
+++ b/examples/gstreamer-send/jsfiddle/demo.js
@@ -27,7 +27,7 @@ pc.onicecandidate = event => {
   }
 }
 
-pc.createOffer({offerToReceiveVideo: true, offerToReceiveAudio: true}).then(d => pc.setLocalDescription(d)).catch(log)
+pc.createOffer({ offerToReceiveVideo: true, offerToReceiveAudio: true }).then(d => pc.setLocalDescription(d)).catch(log)
 
 window.startSession = () => {
   let sd = document.getElementById('remoteSessionDescription').value
diff --git a/examples/save-to-disk/jsfiddle/demo.js b/examples/save-to-disk/jsfiddle/demo.js
index 42f9dae5..197edf4b 100644
--- a/examples/save-to-disk/jsfiddle/demo.js
+++ b/examples/save-to-disk/jsfiddle/demo.js
@@ -11,7 +11,7 @@ var log = msg => {
   document.getElementById('logs').innerHTML += msg + '<br>'
 }
 
-navigator.mediaDevices.getUserMedia({video: true, audio: true})
+navigator.mediaDevices.getUserMedia({ video: true, audio: true })
   .then(stream => pc.addStream(document.getElementById('video1').srcObject = stream))
   .catch(log)
 
diff --git a/examples/sfu/jsfiddle/demo.js b/examples/sfu/jsfiddle/demo.js
index 5b7d94e6..17e6276b 100644
--- a/examples/sfu/jsfiddle/demo.js
+++ b/examples/sfu/jsfiddle/demo.js
@@ -19,7 +19,7 @@ window.createSession = isPublisher => {
   }
 
   if (isPublisher) {
-    navigator.mediaDevices.getUserMedia({video: true, audio: false})
+    navigator.mediaDevices.getUserMedia({ video: true, audio: false })
       .then(stream => pc.addStream(document.getElementById('video1').srcObject = stream))
       .catch(log)
     pc.onnegotiationneeded = e => {
@@ -28,7 +28,7 @@ window.createSession = isPublisher => {
         .catch(log)
     }
   } else {
-    pc.createOffer({offerToReceiveVideo: true})
+    pc.createOffer({ offerToReceiveVideo: true })
       .then(d => pc.setLocalDescription(d))
       .catch(log)
 
diff --git a/examples/util/gstreamer-sink/gst.c b/examples/util/gstreamer-sink/gst.c
index 4e3bfe9f..b731fd83 100644
--- a/examples/util/gstreamer-sink/gst.c
+++ b/examples/util/gstreamer-sink/gst.c
@@ -27,7 +27,6 @@ static gboolean gstreamer_receive_bus_call(GstBus *bus, GstMessage *msg, gpointe
     g_printerr("Error: %s\n", error->message);
     g_error_free(error);
     exit(1);
-    break;
   }
   default:
     break;
diff --git a/examples/util/gstreamer-src/gst.c b/examples/util/gstreamer-src/gst.c
index fd4c07dc..06520dc2 100644
--- a/examples/util/gstreamer-src/gst.c
+++ b/examples/util/gstreamer-src/gst.c
@@ -31,7 +31,6 @@ static gboolean gstreamer_send_bus_call(GstBus *bus, GstMessage *msg, gpointer d
     g_printerr("Error: %s\n", error->message);
     g_error_free(error);
     exit(1);
-    break;
   }
   default:
     break;
@@ -71,7 +70,7 @@ void gstreamer_send_start_pipeline(GstElement *pipeline, int pipelineId) {
   s->pipelineId = pipelineId;
 
   GstBus *bus = gst_pipeline_get_bus(GST_PIPELINE(pipeline));
-  guint bus_watch_id = gst_bus_add_watch(bus, gstreamer_send_bus_call, NULL);
+  gst_bus_add_watch(bus, gstreamer_send_bus_call, NULL);
   gst_object_unref(bus);
 
   GstElement *appsink = gst_bin_get_by_name(GST_BIN(pipeline), "appsink");