lint console logs with eslint before committing code

.eslintignore

# put paths to files you don't want to lint here
path/to/files/to/ignore

.eslintrc.json

{
  "parserOptions": {
      "ecmaVersion": 6,
      "sourceType": "module",
      "ecmaFeatures": {
        "jsx": true,
        "experimentalObjectRestSpread": true
      }
  },
  "rules": {
    "no-console": "error"
  }
}

pre-commit

# make sure you have eslint installed via npm install -g eslint
eslint path/to/javascripts