ESLint 意外令牌 {

Question

As the title describes I am having an issue getting ESLint to run in my React project.

$ npx eslint **/*.js
Unexpected token {

package.json

    "devDependencies": {
    "@babel/core": "^7.9.6",
    "@babel/preset-env": "^7.9.6",
    "@babel/preset-react": "^7.9.4",
    "babel-eslint": "^8.2.6",
    "babel-loader": "^8.1.0",
    "eslint": "^7.0.0",
    "html-loader": "^1.1.0",
    "html-webpack-plugin": "^4.3.0",
    "webpack": "^4.43.0",
    "webpack-cli": "^3.3.11",
    "webpack-dev-server": "^3.11.0"
  },
  "dependencies": {
    "react": "^16.13.1",
    "react-dom": "^16.13.1"
  }

.eslintrc

{
  "parser": "babel-eslint"
}

Answer 1

Your package.json should be an object

{
    "devDependencies": {
    "@babel/core": "^7.9.6",
    "@babel/preset-env": "^7.9.6",
    "@babel/preset-react": "^7.9.4",
    "babel-eslint": "^8.2.6",
    "babel-loader": "^8.1.0",
    "eslint": "^7.0.0",
    "html-loader": "^1.1.0",
    "html-webpack-plugin": "^4.3.0",
    "webpack": "^4.43.0",
    "webpack-cli": "^3.3.11",
    "webpack-dev-server": "^3.11.0"
  },
  "dependencies": {
    "react": "^16.13.1",
    "react-dom": "^16.13.1"
  }
}

Answer 2

As stated in the Installation and Usage section of the npm package, there's a node.js version prerequisite for the eslint script to run.

You can check your node version by running node --version .

If you find you've got an unsupported node version, if figure you may consider switching to a higher node version or a lower eslint package version. Eg: eslint@6.8.0