added more node versions to travis ci

jaredpetersen · jaredpetersen · commit 991d112a85c9 · 2018-12-05T21:01:29.000-08:00
diff --git a/.travis.yml b/.travis.yml
@@ -2,6 +2,8 @@ language: node_js
 node_js:
   - "node"
   - "lts/*"
+  - "9"
+  - "8"
 script:
   - npm run build
   - npm test -- --coverage
