language: node_js
os: linux
dist: bionic
before_install:
  - "nvm install-latest-npm"
node_js:
  - "0.8"
  - "0.10"
  - "0.12"
  - "4"
  - "6"
  - "8"
  - "9"
  - "10"
  - "11"
  - "12"
  - "13"
  - "14"