jsx-a11y/lang Correctness

What it does

The lang prop on the <html> element must be a valid IETF BCP 47 language tag.

Why is this bad?

If the language of a webpage is not specified as valid, the screen reader assumes the default language set by the user. Language settings become an issue for users who speak multiple languages and access website in more than one language.

Examples

Examples of incorrect code for this rule:

jsx

<html>
<html lang="foo">

Examples of correct code for this rule:

jsx

<html lang="en">
<html lang="en-US">

Resources

How to use

To enable this rule using the config file or in the CLI, you can use:

Config (.oxlintrc.json)Config (oxlint.config.ts)CLI

json

{
  "plugins": ["jsx-a11y"],
  "rules": {
    "jsx-a11y/lang": "error"
  }
}

import { defineConfig } from "oxlint";

export default defineConfig({
  plugins: ["jsx-a11y"],
  rules: {
    "jsx-a11y/lang": "error",
  },
});

bash

oxlint --deny jsx-a11y/lang --jsx-a11y-plugin

Version

This rule was added in v0.1.1.

What it does ​

Why is this bad? ​

Examples ​

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How to use ​

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