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https://github.com/sonarsource/sonarjs

SonarSource Static Analyzer for JavaScript and TypeScript
https://github.com/sonarsource/sonarjs

code-quality javascript language-team sonarcloud sonarqube static-analysis static-analyzer static-code-analysis typescript

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SonarSource Static Analyzer for JavaScript and TypeScript

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README 

        
[![Quality Gate](https://next.sonarqube.com/sonarqube/api/project_badges/measure?project=org.sonarsource.javascript%3Ajavascript&metric=alert_status)](https://next.sonarqube.com/sonarqube/dashboard?id=org.sonarsource.javascript%3Ajavascript) [![Coverage](https://next.sonarqube.com/sonarqube/api/project_badges/measure?project=org.sonarsource.javascript%3Ajavascript&metric=coverage)](https://next.sonarqube.com/sonarqube/component_measures/domain/Coverage?id=org.sonarsource.javascript%3Ajavascript)



This SonarSource project is a [static code analyzer](https://en.wikipedia.org/wiki/Static_program_analysis) for the JavaScript, TypeScript, and CSS languages to produce [Clean code](https://www.sonarsource.com/solutions/clean-code/).



:arrow_right: [Have some feedback?](#support)



This repository now hosts [eslint-plugin-sonarjs](./packages/jsts/src/rules/README.md), our plugin for ESLint.



# Features



- Advanced rules based on pattern matching and control flow analysis

- [407 JS rules](https://rules.sonarsource.com/javascript) and [413 TS rules](https://rules.sonarsource.com/typescript)

- [26 CSS rules](https://rules.sonarsource.com/css)

- Compatible with ECMAScript 2015-2020

- React JSX, Flow, Vue, and AWS lambda functions support for JavaScript and TypeScript

- CSS, SCSS, SASS, Less, also 'style' inside HTML and VueJS files

- Metrics (complexity, number of lines, etc.)

- Import of test coverage reports

- Import of ESLint, TSLint, and Stylelint issues



# Documentation



You can find [documentation here](https://docs.sonarqube.org/latest/analysis/languages/javascript/)



# Have question or feedback?



### SonarSource Community Forum



If you want to report a bug, request a feature, or provide other kind of feedback, please use [SonarQube Community Forum](https://community.sonarsource.com/). Please do not forget to specify the details of your request, code reproducer, and versions of projects you use.



# Contributing



## Prerequisites



To work on this project, it is required to have the following tools installed:



- [JDK 17](https://docs.aws.amazon.com/corretto/latest/corretto-17-ug/what-is-corretto-17.html)

- [Node.js](https://nodejs.org/en) >= 22

- [npm](https://www.npmjs.com/) >= 8

- [Maven](https://maven.apache.org/) >= 3.8



## How-to



### 1. Request a new feature



To request a new feature, create a new thread in [SonarSource Community Forum](https://community.sonarsource.com/). Even if you plan to implement it yourself and submit it back to the community, please create a thread to be sure that we can follow up on it.



### 2. Pull Request



To submit a contribution, create a pull request for this repository. Please make sure that you follow our [code style](https://github.com/SonarSource/sonar-developer-toolset) and that all [tests](/docs/DEV.md#testing) are passing.



## Work with us



Would you like to work on this project full-time? We are hiring! Check out https://www.sonarsource.com/hiring



## License



Copyright 2011-2024 SonarSource.



SonarQube analyzers released after November 29, 2024, including patch fixes for prior versions, are published under the [Sonar Source-Available License Version 1 (SSALv1)](LICENSE.txt).



See individual files for details that specify the license applicable to each file. Files subject to the SSALv1 will be noted in their headers.