![]() "eslint-config-prettier" : Turns off all rules that are unnecessary or might conflict with."eslint-config-airbnb" : This package provides Airbnb's.The Pluginsįollowing are the plugins which I currently use: These extensions highlight issues in the editor, so it's easier to spot them when writing code instead of pulling out your hair later when you accidentaly commit □ code. If you use VSCode, I'd recommend using Prettier and ESLint. eslintrc.js file to configure options related to each tool. To learn more about creating a custom parser, refer to Custom Parsers.Then create. A parser is responsible for taking your code and transforming it into an abstract syntax tree (AST) that ESLint can then analyze and lint.ĮSLint ships with a built-in JavaScript parser (Espree), but custom parsers allow you to lint other languages or to extend the linting capabilities of the built-in parser.įor example, the custom parser extends ESLint to lint TypeScript code.Ĭustom parsers cannot be included in a plugin, unlike the other extension types. Custom ParsersĮSLint custom parsers are a way to extend ESLint to support the linting of new language features or custom syntax in your code. To learn more about creating a custom formatter, refer to Custom Formatters. ![]() You only need to create a custom formatter if the built-in formatters don’t serve your use case.įor example, the custom formatter eslint-formatter-gitlab can be used to display ESLint results in GitLab code quality reports. Custom formatters let you display linting results in a format that best fits your needs, whether that’s in a specific file format, a certain display style, or a format optimized for a particular tool. Custom FormattersĬustom formatters take ESLint linting results and output the results in a format that you define. To learn more about creating a shareable config, refer to Share Configuration. By using the eslint-config-airbnb shareable config, you can automatically enforce the Airbnb style guide in your project without having to manually configure each rule. This is a set of rules for ESLint that is designed to match the style guide used by the Airbnb JavaScript style guide. ![]() You can either publish a shareable config independently or as part of a plugin.įor example, a popular shareable config is eslint-config-airbnb, which contains a variety of rules in addition to some parser options. Anything that you can put in a configuration file can be put in a shareable config. ![]() They bundle rules and other configuration together in an npm package. Shareable ConfigsĮSLint shareable configs are pre-defined configurations for ESLint that you can use in your projects. To learn more about bundling these extensions into a plugin, refer to Plugins. To learn more about creating the extensions you can include in a plugin, refer to the following documentation: The rules include things like enforcing consistent usage of React component lifecycle methods and requiring the use of key props when rendering dynamic lists. You can include configurations in a plugin as well.įor example, eslint-plugin-react is an ESLint plugin that includes rules specifically for React projects. Often a plugin is paired with a configuration for ESLint that applies a set of features from the plugin to a project. For example, if you’re using a frontend JavaScript library like React or framework like Vue, these tools have some features that require custom rules outside the scope of the ESLint core rules. Plugins are useful because your project may require some ESLint configuration that isn’t included in the core eslint package. You can publish a plugin as an npm module. Plugins let you add your own ESLint custom rules and custom processors to a project. This page explains the ways to extend ESLint, and how these extensions all fit together. There are a variety of ways that you can extend ESLint’s functionality. ESLint is highly pluggable and configurable.
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