Added caching to travis ci

Rob Davarnia · Rob Davarnia · commit 61698c8c10d3 · 2018-03-12T17:35:27.000-07:00
diff --git a/.travis.yml b/.travis.yml
@@ -21,5 +21,9 @@ node_js:
   - "8"
   - "9"
 
+cache:
+  directories:
+    - "node_modules"
+
 after_script: "npm install coveralls@2 && cat ./coverage/lcov.info | coveralls"
 
