These are features of babel/eslint/etc., not quasar. We can always put some configs in package.json like this:
"babel": {
"presets": [
[
"@babel/preset-env",
{
"targets": {
"node": "8.11"
}
}
]
]
},
"prettier": {
"printWidth": 120,
"trailingComma": "all",
"singleQuote": true,
"semi": false
},
"eslintIgnore": [],
"eslintConfig": {
"root": true,
"parserOptions": {
"parser": "babel-eslint"
},
"env": {
"es6": true,
"commonjs": true,
"node": true,
"browser": false
},
}
...