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Official ESLint plugin for Vue.js

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NPM version NPM downloads CircleCI License

Official ESLint plugin for Vue.js

:book: Documentation

See the official website.

:anchor: Versioning Policy

This plugin is following Semantic Versioning and ESLint's Semantic Versioning Policy.

:newspaper: Changelog

This project uses GitHub Releases.

:beers: Contribution Guide

Contribution is welcome!

See The ESLint Vue Plugin Developer Guide.

Working with Rules

Before you start writing a new rule, please read the official ESLint guide.

Next, in order to get an idea how does the AST of the code that you want to check looks like, use the The is a great tool to inspect ASTs, also Vue templates are supported.

After opening, select

as the syntax and
as the parser.

Since single file components in Vue are not plain JavaScript, the default parser couldn't be used, so a new one was introduced.

generates enhanced AST with nodes that represent specific parts of the template syntax, as well as what's inside the

To know more about certain nodes in produced ASTs, go here: - ESTree docs - vue-eslint-parser AST docs


provides a few useful parser services that help traverse the produced AST and access tokens of the template: -
context.parserServices.defineTemplateBodyVisitor(visitor, scriptVisitor)

Check out an example rule to get a better understanding of how these work.

Please be aware that regarding what kind of code examples you'll write in tests, you'll have to accordingly set up the parser in

(you can do it on a per test case basis). See an example here.

If you'll stuck, remember there are plenty of rules you can learn from already. If you can't find the right solution, don't hesitate to reach out in issues – we're happy to help!

:lock: License

See the LICENSE file for license rights and limitations (MIT).

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