Eslint does not allow static class properties

问题

I'm current developing an API on Node 12.14.1 and using Eslint to help me write the code. Unfortunately it does not allow me to set static class properties as shown below:

class AuthManager {
  static PROP = 'value'
}

The following error is given: Parsing error: Unexpected token =eslint

Static class properties are already supported on JS and on Node.
How can this rule be disable?

I also have the following .eslintrc.json file:

{
  "env": {
      "es6": true,
      "node": true
  },
  "extends": "eslint:recommended",
  "globals": {
      "Atomics": "readonly",
      "SharedArrayBuffer": "readonly"
  },
  "parserOptions": {
      "ecmaVersion": 2018,
      "sourceType": "module"
  }
}

回答1:

ESLint with its default parser does not support class fields syntax for now. You can solve the problem by changing the configured parser to babel-eslint.

npm install --save-dev babel-eslint

// eslintrc.json
{
  "parser": "babel-eslint",
  ...
}

Eslint's default parser, Espree, does not support class fields because that syntax is currently stage 3, and that it is decided that only stage 4 proposals are to be supported in Espree.

回答2:

you need to install @babel/eslint-parser:

yarn add --dev @babel/eslint-parser

And have the parser in your .eslintrc.yml for instance:

parser: "@babel/eslint-parser"

来源：https://stackoverflow.com/questions/60046847/eslint-does-not-allow-static-class-properties