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Simple Setup - Vue Linting in VS Code

By Lane Wagner on Jun 17, 2020

I’m a gopher by nature, so I expect consistent styling and linting in my codebases. More importantly, I don’t like to think about styling. I like to type haphazardly and then have my editor apply styles automatically on save (ctrl+s, cmd+s). If you are the same way, hopefully, this will help you in your next Vue.js project.

VS Code - Download and Plugin

Download VS Code

After downloading VS Code, we are going to use 2 plugins. Vue 2 Snippets and Eslint . Vue 2 Snippets will basically just provide some Vue specific auto completes, but Eslint will do the more important work of linting our code.

You will also want to add the following to your project using our package manager’s devDependencies if you don’t already have them:

yarn add eslint --dev
yarn add eslint-plugin-import --dev
yarn add eslint-plugin-node --dev
yarn add eslint-plugin-promise --dev
yarn add eslint-plugin-standard --dev
yarn add eslint-plugin-vue --dev
yarn add @vue/eslint-config-standard --dev
yarn add babel-eslint --dev

Configuring the settings

Now that everything is installed, we just need to do some final setup. VS Code has a GUI for setting preferences, but I tend to just use the JSON file for simplicity sake. In the root of your project ensure that you have a .vscode folder, and inside of that folder there is a settings.json file. VS Code will use these settings automatically for this directory.

Paste in these configurations:

{
  "files.eol": "\n",
  "editor.codeActionsOnSave": {
    "source.fixAll": true
  },
  "eslint.options": {
    "configFile": ".eslintrc.json"
  },
  "eslint.alwaysShowStatus": true,
  "eslint.format.enable": true,
  "eslint.packageManager": "yarn"
}

This accomplishes several important things.

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ESLint Config

We need to set our linting rules:

{
  "root": true,
  "env": {
    "node": true,
    "mocha": true
  },
  "extends": [
    "eslint:recommended",
    "plugin:vue/recommended"
  ],
  "rules": {
    "comma-dangle": "error",
    "quotes": [
      "error",
      "single"
    ],
    "linebreak-style": [
      "error",
      "unix"
    ],
    "array-bracket-spacing": [
      "error",
      "always"
    ],
    "semi": [
      "error",
      "always"
    ],
    "eol-last": [
      "error",
      "always"
    ],
    "indent": [
      "error",
      2
    ]
  },
  "parserOptions": {
    "parser": "babel-eslint",
    "sourceType": "module",
    "allowImportExportEverywhere": true,
    "ecmaVersion": 2019
  }
}

You can obviously change this but this is my boilerplate for Vue CLI projects. This will do things like enforce consistent tab sizes, semicolon usage and array spacing.

Done!

If you have any questions or if you’ve noticed that this article has become obsolete please leave a comment and let me know.

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