Questions tagged [eslint]
The pluggable linting utility for JavaScript and related frameworks.
eslint
627
questions
857
votes
23
answers
1.2m
views
How to fix missing dependency warning when using useEffect React Hook
With React 16.8.6 (it was good on previous version 16.8.3), I get this error when I attempt to prevent an infinite loop on a fetch request:
./src/components/BusinessesList.js
Line 51: React Hook ...
- 8,613
1984
votes
14
answers
1.6m
views
Turning off eslint rule for a specific line
In order to turn off linting rule for a particular line in JSHint we use the following rule:
/* jshint ignore:start*/
$scope.someVar = ConstructorFunction();
/* jshint ignore:end */
I have been ...
- 27.5k
168
votes
14
answers
233k
views
ESLint - Configuring "no-unused-vars" for TypeScript
I use ESLint in all of my TypeScript projects with the following settings:
"extends": ["airbnb", "prettier", 'plugin:vue/recommended'],
"plugins": ["...
- 1,971
190
votes
2
answers
195k
views
Understanding the React Hooks 'exhaustive-deps' lint rule
I'm having a hard time understanding the 'exhaustive-deps' lint rule.
I already read this post and this post but I could not find an answer.
Here is a simple React component with the lint issue:
const ...
- 3,594
327
votes
19
answers
672k
views
ESLint Parsing error: Unexpected token
With this code:
import React from 'react';
import { Link } from 'react-router';
import { View, NavBar } from 'amazeui-touch';
import * as Pages from '../components';
const { Home, ...Components } =...
- 3,311
10
votes
2
answers
4k
views
404 Not Found when trying to install ESLint 8.4.4 with create-react-app
Whenever I try to run npx create-react-app my-app, it shows the error:
npm ERR! code E404
npm ERR! 404 Not Found - GET https://registry.npmjs.org/@types/eslint/-/eslint-8.4.4.tgz - Not found
npm ERR! ...
- 109
159
votes
19
answers
102k
views
Line 0: Parsing error: Cannot read property 'map' of undefined
Currently starting up the server on my client side, the error above is what I have been
getting. I am using TypeScript, ReactJS, ESLint. I can't seem to go forward since this error
has been haunting ...
- 1,660
150
votes
18
answers
217k
views
ESLint with React gives `no-unused-vars` errors
I've setup eslint & eslint-plugin-react.
When I run ESLint, the linter returns no-unused-vars errors for each React component.
I'm assuming it's not recognizing that I'm using JSX or React ...
- 62.5k
803
votes
19
answers
713k
views
Turning off eslint rule for a specific file
Is it possible to turn off the eslint rule for the whole file? Something such as:
// eslint-disable-file no-use-before-define
(Analogous to eslint-disable-line.) It happens to me quite often, that ...
- 15.3k
382
votes
29
answers
464k
views
"parserOptions.project" has been set for @typescript-eslint/parser
I created a new React Native project with --template typescript
I deleted the template directory which came as part of the boilerplate.
I then proceeded to add ESLint:
module.exports = {
parser: &...
- 8,544
245
votes
25
answers
537k
views
React eslint error missing in props validation
I have the next code, eslint throw:
react/prop-types onClickOut; is missing in props validation
react/prop-types children; is missing in props validation
propTypes was defined but eslint does not ...
161
votes
2
answers
113k
views
Global variables in Javascript and ESLint
I have got multiple javascript files and I have defined some global variable in a file which loads before the others.
As a consequence all of the files loaded after the first have access to the global ...
- 1,809
90
votes
29
answers
136k
views
Error when deploying react app and it keeps sayings << Plugin "react" was conflicted between "package.json » eslint-config-react-app » >>
I have been having a little bit of issues when deploying my create react app, as it fails to compile and tells me Plugin "react" was conflicted between "package.json » eslint-config-...
- 925
78
votes
7
answers
36k
views
How do I configure ESLint to allow fat arrow class methods
ESLint is throwing a Parsing error: Unexpected token = error when I try to lint my Es6 classes. What configuration parameter am I missing to enable fat arrow class methods in eslint?
Sample class:
...
- 3,483
51
votes
8
answers
22k
views
Omit property variable when using object destructuring
Here is an example:
const initObject = {
a: 0,
b: 0,
c: 0
}
const { a, ...rest } = initObject
We're omitting property a from the object, but then const a is assigned a value, but never used - ...
- 18.1k