language: node_js

node_js:
  - "8"
  - "7"
  - "6"
  - "5"
  - "4"

sudo: false

language: node_js

node_js:
  - "8"
  - "7"
  - "6"
  - "5"
  - "4"

sudo: false

before_install: if [[ `npm -v | cut -d . -f 1` -lt 3 ]]; then npm i -g npm@3; fi

Make sure that at least npm@3 is installed on Travis.
Make sure that at least npm@3 is installed on Travis.

https://github.com/travis-ci/travis-ci/issues/4653#issuecomment-194051953
