eslint 解析错误：带有异步的意外令牌函数

Question

I am getting the following error in async usage on ESLINT.

eslint Parsing error: Unexpected token function with async

Here is my eslintsrc

{
  "extends": "airbnb-base",
  "rules": {
    "no-console": "off",
    "func-style":"error",
    "import/no-extraneous-dependencies": ["error", {"devDependencies": false, "optionalDependencies": false, "peerDependencies": false, "packageDir": "./"}]
},
"parserOptions": {
  "ecmaVersion":8
 }
}

UPDATE

Here is my async

const get = async function get(req, res) {
  const user = await service.get();
  console.log("From db",user.username);
  res.send('ok');
};

Answer 1

I was getting this error also, I added the following to my eslintrc:

{
  "env": {
    "node": true,
    "es6": true
  },

  "parserOptions": {
    "ecmaVersion": 8
  }
}

Answer 2

In my case it got fixed when I just changed from:

"parserOptions": { "ecmaVersion": 8 }

to

"parserOptions": { "ecmaVersion": 2018 }

Answer 3

It's an error regarding func-style . By default it uses type expression , and the correct way to represent functions using this as expression is:

const get = async get(req, res) {
  const user = await service.get();
  console.log("From db",user.username);
  res.send('ok');
};

Check the docs for further examples, https://eslint.org/docs/rules/func-style

UPDATE: Forgot to see you have added error, what you were doing was right,

const get = async function get(req, res) {
  const user = await service.get();
  console.log("From db",user.username);
  res.send('ok');
};

Just remove func-style from eslint.

Answer 4

If you are new in the project I recommend just to go back with promises :)

function openTabs(array) {
    return new Promise((resolve, reject) => {
        //... your code
    });
}