Solving linter error no-undef for document

问题

I am using airbnb extension for linting my React Project. Now, in my index.js I have:

import React from 'react';
import ReactDOM from 'react-dom';
import App from './App';

ReactDOM.render(
  <App />,
  document.getElementById('root'),
);

linter says:

no-undef 'document' is not defined.at line 8 col 3

How can I solve this problem?

回答1:

There are a number of ways to solve/get around this. The two key ways are to either specify document as global or to set the eslint-env as browser (what you probably want). You can do this 1) in-file, 2) in the configuration, or even 3) when running from the CLI.

1) In-file:

Set the environment as browser in your file:

/* eslint-env browser */
import React from 'react';
import ReactDOM from 'react-dom';
import App from './App';

ReactDOM.render(
  <App />,
  document.getElementById('root'),
);

Add it as a global in the file itself:

/* global document */
import React from 'react';
import ReactDOM from 'react-dom';
import App from './App';

ReactDOM.render(
  <App />,
  document.getElementById('root'),
);

2) In the eslint configuration:

Set the environment as browser in the configuration:

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

Add it as a global in the configuration:

{
  "globals": {
    "document": false
  }
}

3) From the CLI:

Using env: eslint --env browser,node file.js
Using globals: eslint --global document file.js

Resources:
Specifying Globals with ESLint
Specifying Environments with ESLint
Specifying env with ESLint CLI
Specifying globals with ESLint CLI

来源：https://stackoverflow.com/questions/41858052/solving-linter-error-no-undef-for-document

标签

javascript

eslint

airbnb