no-restricted-attr-values

This rule disallows the use of specified attribute values in Svelte components.

How to use

// eslint.config.js (flat config)
import htmlSvelte from "@html-eslint/eslint-plugin-svelte";

export default [
  {
    files: ["**/*.svelte"],
    plugins: {
      "@html-eslint/svelte": htmlSvelte,
    },
    rules: {
      "@html-eslint/svelte/no-restricted-attr-values": [
        "error",
        {
          attrPatterns: ["class"],
          attrValuePatterns: ["foo"],
          message: "'foo' class is restricted.",
        },
      ],
    },
  },
];

Rule Details

This rule allows you to specify attribute values that you don't want to use in your application.

Options

This rule takes an array of option objects, where the attrPatterns and attrValuePatterns are specified.

1. attrPatterns: An array of strings representing regular expression patterns. It matches attribute names.
2. attrValuePatterns: An array of strings representing regular expression patterns. It disallows attribute values that match any of the patterns.
3. message (optional): A custom error message to be shown when the rule is triggered.

Examples of incorrect code for this rule with the option below:

{
  "attrPatterns": ["class"],
  "attrValuePatterns": ["^foo$"],
  "message": "Do not use foo class"
}

<div class="foo"></div>
<img class="foo" />