diff --git a/.travis.yml b/.travis.yml
index b858f7055..b981f047e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,13 +1,17 @@
 language: r
 matrix:
   include:
-    - name: "Doc check"
+    - name: "Roxygen check"
       r: release
       r_packages:
         - devtools
         - roxygen2
       script:
         - ./tools/checkDocsCurrent.sh
+    - name: "Javascript check"
+      language: node_js
+      cache: yarn
+      script: ./tools/checkJSCurrent.sh
     - name: "Old Release Check"
       r: oldrel
     - name: "Current Release Check"
diff --git a/tools/checkDocsCurrent.sh b/tools/checkDocsCurrent.sh
index b10cd980f..6d42068d1 100755
--- a/tools/checkDocsCurrent.sh
+++ b/tools/checkDocsCurrent.sh
@@ -2,6 +2,11 @@
 
 # Generate package docs in the working directory
 Rscript -e "devtools::document(roclets=c('rd', 'collate', 'namespace'))"
+if [ $? -ne 0 ]
+then
+  echo "Error generating Roxygen docs."
+  exit 1
+fi
 
 # This command will return a zero exit code if there are uncommitted changes
 test -n "$(git status --porcelain)"
diff --git a/tools/checkJSCurrent.sh b/tools/checkJSCurrent.sh
new file mode 100755
index 000000000..85993d837
--- /dev/null
+++ b/tools/checkJSCurrent.sh
@@ -0,0 +1,21 @@
+#!/bin/bash
+
+# Run JS build process
+(cd "$(dirname "$0")" && yarn build)
+if [ $? -ne 0 ]
+then
+  echo "Error generating JavaScript assets with yarn."
+  exit 1
+fi
+
+# This command will return a zero exit code if there are uncommitted changes
+test -n "$(git status --porcelain)"
+if [ $? -eq 0 ]
+then
+  git status --porcelain
+  echo "Please rebuild the JavaScript and commit the changes."
+  echo "The above files changed when we built the JavaScript assets. This most often occurs when a user makes changes to the JavaScript sources but doesn't rebuild and commit them."
+  exit 1
+else
+  echo "No difference detected; JavaScript build is current."
+fi