I created a project with npm and vuejs/vue-cli.
I imported the ESLint extension.
I have eslint entries in my package.json file.
Now when I format my code (right-click, Format Code), it completely disfigures my code.
What do I have to do to get vscode to format according to the ESLint rules?
But on the website, ESLint complains that everything is not formatted correctly, and so it is obviously installed and running in some sense:
1) First, you need to install the ESLint extension in the VS code.
This extension uses the ESLint library.If you haven't installed ESLint either locally or globally do so by running
npm install eslint //For a local install
or
npm install -g eslint //For a global install.
2) Then, open Setting.json file in VS code. by
File-> Preferences->Settings.
3) Add following setting.
{
"eslint.enable": true,
"eslint.autoFixOnSave": true,
"eslint.run": "onType",
"eslint.options": {
"extensions": [".js",".vue"]
},
"eslint.validate": [
{ "language": "vue", "autoFix": true }
]
}
4) Now, check your vue file.It will start showing linting error.If not, restart the VS code.
I met this problem before.
I resolved it by installing eslint using npm install locally(it can be installed globally), then run "eslint --init", restart vscode.
Hope this help you.
Related
I've been trying to use ESLint along with Standard and I haven't been able to get it to work. I've tried setting it up through eslint --init, uninstalling eslint globally and having all the packages locally, installing each package manually npm install --save-dev eslint eslint-config-standard eslint-plugin-standard eslint-plugin-promise eslint-plugin-import eslint-plugin-node, reinstalling ESLint extension and nothing so far. I'm perfectly able to run ./node_modules/.bin/eslint --fix ... in order to fix/check errors but it doesn't work with the VSCode extension by any meanings. I don't have prettier so it isn't related to it either.
Output:
[Info - 12:33:20 AM] ESLint server is running.
[Info - 12:33:23 AM] ESLint library loaded from: c:\Users\h08FXplsV8\Documents\dev\node\graphql-bootcamp\graphql-prisma\node_modules\eslint\lib\api.js
[Error - 12:33:25 AM]
Failed to load plugin 'import' declared in 'graphql-prisma\.eslintrc » eslint-config-standard': Cannot find module 'eslint-plugin-import'
Require stack:
- C:\Users\h08FXplsV8\Documents\dev\node\graphql-bootcamp\__placeholder__.js
Happened while validating C:\Users\h08FXplsV8\Documents\dev\node\graphql-bootcamp\graphql-prisma\src\resolvers\index.js
This can happen for a couple of reasons:
- The plugin name is spelled incorrectly in an ESLint configuration file (e.g. .eslintrc).
- If ESLint is installed globally, then make sure 'eslint-plugin-import' is installed globally as well.
- If ESLint is installed locally, then 'eslint-plugin-import' isn't installed correctly.
.eslintrc:
{
"env": {
"es6": true,
"node": true
},
"extends": [
"standard"
],
"globals": {
"Atomics": "readonly",
"SharedArrayBuffer": "readonly"
},
"parserOptions": {
"ecmaVersion": 2018,
"sourceType": "module"
},
"rules": {
}
}
I've seen other questions in SO related to this issue but none of the solutions worked, unfortunately.
I had the same issue for many weeks and finally found this thread and comment on Github: https://github.com/microsoft/vscode-eslint/issues/696#issuecomment-542592372
My issue turned out to be related to subdirectories. As soon as I made the project the only open project with an .eslintrc.js file, all of my linting issues went away.
Hopefully this works for you.
To fix the dependency tree, try following these steps in the exact order:
Delete package-lock.json (not package.json!) and/or yarn.lock in your project folder.
Delete node_modules in your project folder.
Remove "babel-eslint" from dependencies and/or devDependencies in the package.json file in your project folder.
Run npm install or yarn, depending on the package manager you use.
Also, be sure, that you have latest version of "eslint-plugin-import" plugin, as in my case, for example i had this error with "2.20.1" version, but latest "2.25.3" solved this issue
I had the same error caused by the eslint-plugin-import dependency and in my case, I got rid of the error by increasing to the latest version of the package.
For those having the following error with flutter firebase cloud functions after running firebase init functions and trying to run firebase deploy --only functions:
ESLint: 8.9.0
Error: Failed to load plugin 'import' declared in '.eslintrc.js': Cannot find module 'es-abstract/2021/RequireObjectCoercible'
Require stack:
- C:\Users\xx\Documents\xx\xx\functions\node_modules\eslint-plugin-import\lib\ExportMap.js
- C:\Users\xx\Documents\xx\xx\functions\node_modules\eslint-plugin-import\lib\rules\named.js
- C:\Users\xx\Documents\xx\xx\functions\node_modules\eslint-plugin-import\lib\index.js
- C:\Users\xx\Documents\xx\xx\functions\node_modules\#eslint\eslintrc\dist\eslintrc.cjs
This was solved by:
delete node_modules in functions folder
delete package-lock.json in functions folder
cd .\functions\ in the terminal to get into functions folder, run npm i, cd ../
firebase deploy --only functions
I am having this issue too which was why I checked this post but did not see any answer that work for me. After searching online, I stumbled into this code which solves my problem.
npm i -D eslint #typescript-eslint/eslint-plugin
In my case, i was not using jest at all.
So i had to downgrade de eslint dev dependency:
"eslint": "^7.32.0",
as it say here: https://github.com/eslint/eslint/issues/15149#issuecomment-939501275
Expo react-native app does not load on connected iphone
When I start my app using the command below:
expo start --tunnel
I get the following error:
Logs for your project will appear below. Press Ctrl+C to exit.
Unable to resolve "react-native-vector-icons/AntDesign" from
"node_modules/react-native-elements/src/helpers/getIconType.js"
Building JavaScript bundle [=================================================================================================== ] 99%
I am using ios 10.13.6 High Sierra.
Anybody have seen this issue before? any suggestions to debug or resolve this issue?
it looks like you are not using the babel preset which is set up when you initialize a project in expo. this preset remaps react-native-vector-icons to #expo/vector-icons, so you would not see this error if you were using it.
if you are using sdk32, you can fix that by creating babel.config.js in your project (and removing .babelrc if there is one) and adding this to babel.config.js:
module.exports = function(api) {
api.cache(true);
return {
presets: ['babel-preset-expo'],
};
};
now close the packager and run expo start -c.
if you are using an older sdk version than sdk32, you can just edit .babelrc (or create it if it doesn't exist) and change it to this:
{
"presets": ["babel-preset-expo"],
"env": {
"development": {
"plugins": ["transform-react-jsx-source"]
}
}
}
I removed react-native-elements from package.json. I then ran the following command:
rm -rf node_modules package-lock.json; npm install
then issued the following command:
expo start -c --tunnel
This seemed to have fixed the issue. I need the native-react-elements package so the next thing is that I am going to add it back and try to test with different versions of react-native-elements package.
I was compiling perfect way for adding eslint-flow-prettier in all types of react native projects.
I have some question about using eslint in Expo project.
Does exp init also install eslint?
If not, I have tried using following command for installing eslint
1)yarn add --dev eslint eslint-config-airbnb eslint-plugin-import eslint-plugin-react eslint-plugin-jsx-a11y babel-eslint
2)yarn eslint --init
Is this the correct way to put eslint in expo project?
In the second step above it asked to Select 'Use a popular style guide', I selected Airbnb, after that it removed multiple packages and project is not running(obvious reason for error: missing libraries).So why this is happening?Should I have selected config other than Airbnb?(only 3 options for eslint config: Google, Airbnb, Standard)
Also I did use YARN for expo project because NPM was giving more complication, as it was removing 500+ packages during step1 above, which resulted in many of the libraries going missing from project, I tried npm install to install all packages but still had problems. So went with YARN.
For now I want to somehow include eslint in the Expo project.
Thanks in advance.
UPDATE 26th March 16:25 IST:
1)Here is the info after installing eslint using: npm install --save-dev eslint-config-airbnb babel-eslint (npm version 5.8.0)
install eslint-config-airbnb and babel-eslint as dev dependencies.
create a file in your root named .eslintrc and add this inside this file
{
"extends": "airbnb",
"parser": "babel-eslint",
"rules": {
}
}
install Eslint extension in your editor. this is the extension for vscode(you can enable eslint if you are using Webstorm)
This problem got solved by deleting node_modules folder in project directory and did npm intsall.
So, during any npm install <package> if it removes some other previously installed packages, only way for now is to delete whole node_module folder and perform npm install. This worked for me, when this problem occurred while creating react-native app with native code support(https://facebook.github.io/react-native/docs/getting-started.html).
I'm trying to install ESlint to use it with Sublime Text 2 for all my local projects. Configuration documentation is very unclear about global installation:
Note: eslint --init is intended for setting up and configuring ESLint on a per-project basis and will perform a local installation of ESLint and its plugins in the directory in which it is run. If you prefer using a global installation of ESLint, any plugins used in your configuration must also be installed globally.
I don't understand what they mean. I used eslint --init and it installed ESlint locally in node_modules, along with all plugins. There's nothing explained about installing plugins globally. How do I do that? Also, how do I use the global ESlint installation if eslint --init installs local one anyway? This is so confusing.
You can install Node modules within the project (locally) or globally. To switch to globally, you may use the -g flag, like so:
npm install -g eslint
Then see if it's working without Sublime Text (-v flag to see the version of eslint):
eslint -v
To see where it was installed (assuming MacOS/Linux):
which eslint
Then see if it's working in Sublime Text (you may need to restart Sublime first). If it's not working, make sure in the eslint package settings that the path is correct.
The assumption is that you have an eslint plugin installed for your editor,if you have then npm install -g eslint,then you can install add-ons for specific environments,like npm install eslint-config-airbnb eslint-plugin-react eslint-plugin-jsx-a11y eslint-plugin-import -g (this is support for pure JS and for React),you can on this way add support for nodejs too,in working folder make .eslintrc file which looks like this
{
"extends": ["airbnb" , "eslint:recommended"],
"env": {
"node": false,
"es6": true,
"browser": true
},
"rules": {
"semi":"error",
"no-unused-vars": "off",
"func-names":"off",
"indent":"off",
"no-else-return":"off",
"prefer-arrow-callback":"off",
"no-undef":"off",
"no-use-before-define":"off",
"comma-dangle":"off",
"eol-last":"off",
"no-trailing-spaces":"off",
"linebreak-style":"off",
"no-console":"off",
"no-restricted-globals":"off",
"object-shorthand":"off",
"no-shadow":"off",
"no-debugger":"off",
"prefer-const":"off",
"no-multiple-empty-lines":"off"
}
}
if you need node support then in env section of .eslintrc set node to 'true' and install eslint-node plugin globally too with next
npm i eslint-plugin-node -g.
Then in extends section of .eslintrc add "plugin:node/recommended".
In this way, you will have eslint support in every project on your machine which have .eslintrc file.Set rules which you need in .eslintrc rules section .
Thats it.
To install eslint globally: npm install -g eslint
To install eslint in your project folder: npm install eslint --save-dev
Add in package.json this script : "eslint": "eslint --ignore-path .gitignore ."
Create a file called .eslintrc and insert :
{
"env": {
"browser": true,
"node": true
},
"globals": {
"chrome": true
},
"rules": {
"no-console": 0,
"no-empty": [1, { "allowEmptyCatch": true }]
},
"extends": "eslint:recommended"
}
Personally, I save this file in my js folder
Go to node_modules/.bin
Run : eslint --init
or npm run eslint nameOfYourFile
Unfortunately, ESLint no longer recommends the use of Personal Configuration. Even if you have ESLint and other ESLint configuration files installed in the global scope, it will not read them correctly.
https://eslint.org/docs/latest/user-guide/configuring/configuration-files#personal-configuration-files-deprecated
Personal Configuration Files (deprecated)
⚠️ This feature has been deprecated. This feature will be removed
in the 8.0.0 release. If you want to continue to use personal
configuration files, please use the --config CLI
option.
For more information regarding this decision, please see RFC
28 and RFC
32.
~/ refers to the home directory of the current user on your
preferred operating
system. The personal
configuration file being referred to here is ~/.eslintrc.* file,
which is currently handled differently than other configuration files.
How does ESLint find personal configuration files?
If eslint could not find any configuration file in the project,
eslint loads ~/.eslintrc.* file.
If eslint could find configuration files in the project, eslint
ignores ~/.eslintrc.* file even if it's in an ancestor directory of
the project directory.
How do personal configuration files behave?
~/.eslintrc.* files behave similarly to regular configuration files,
with some exceptions:
~/.eslintrc.* files load shareable configs and custom parsers from
~/node_modules/ – similarly to require() – in the user's home
directory. Please note that it doesn't load global-installed packages.
~/.eslintrc.* files load plugins from $CWD/node_modules by default
in order to identify plugins uniquely. If you want to use plugins with
~/.eslintrc.* files, plugins must be installed locally per project.
Alternatively, you can use the --resolve-plugins-relative-to CLI
option
to change the location from which ESLint loads plugins.
I have created project my-npm-lib and published it with npm.
Now I have an another project where I want to do:
npm install my-npm-lib --save
But if I do so, it always add to dependencies:
"dependencies": {
"my-npm-lib": "file:..\\my-npm-lib"
}
This is actually correct because I have the my-npm-lib project located there on the device where I do this.
But this is something I don't want to. Later in my new project I use the webpack and I need to do:
include: [
path.resolve(__dirname, "src"),
path.resolve(__dirname, "node_modules/my-npm-lib")
],
which
is impossible now because the module is not located in node_modules,
doesn't allow me to share the new project correctly with other associates, because there is a wrong path in the package.json file.
So far I have tried to rewrite the package.json manually with
"dependencies": {
"my-npm-lib": "^1.0.0"
}
and then use npm install, but it didn't install this particular module.
PS: Im quite sure my-npm-lib is working with npm, because it is working on other device. It seems there is a problem only with the device where the my-npm-lib is being developed.
I have found the solution,
be sure that package.json dependencies has a correct structure,
use npm install my-npm-lib --save,
then rewrite the "file:..\\my-npm-lib" to "^1.0.0",
delete the package-lock.json!, (it was the missing piece)
cast npm install again.