Solving linter error no-undef for document
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
browserin 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
browserin 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.jsUsing 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