eslint-plugin-wc

eslint-plugin-wc

ESLint plugin for Web Components.

Install

$ npm i -D eslint eslint-plugin-wc

Usage

Add wc to the plugins section of your .eslintrc file:

{
  "plugins": ["wc"]
}

Configure your rules like so:

{
  "rules": {
    "wc/rule-name": "error"
  }
}

Configuration

You may also extend the recommended configuration like so:

{
  "extends": ["plugin:wc/recommended"],
  "env": {"browser": true}
}

Or the best practice configuration which extends this to include all best practice rules:

{
  "extends": ["plugin:wc/best-practice"],
  "env": {"browser": true}
}

Supported Rules

Possible Errors (recommended)

Rule
wc/no-constructor-attributes	Disallows interaction with attributes in constructors
wc/no-invalid-element-name	Disallows invalid custom element names
wc/no-self-class	Disallows class mutations on self

Best Practice

Rule
wc/attach-shadow-constructor	Disallows attaching a shadow root outside the constructor
wc/guard-super-call	Requires a guard before calling a super method inside a Custom Element Lifecycle hook
wc/no-closed-shadow-root	Disallows closed shadow roots
wc/no-typos	Prevents common typos

Changelog

[1.0.0] - 2019-02-26

Fixed

• Validate element name even when specifying window.customElements
• Added parserOptions.sourceType of 'module' to recommended config.