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64 lines
1.4 KiB
Markdown
64 lines
1.4 KiB
Markdown
# heading-has-content
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Enforce that heading elements (`h1`, `h2`, etc.) have content and that the content is accessible to screen readers. Accessible means that it is not hidden using the `aria-hidden` prop. Refer to the references to learn about why this is important.
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## Rule details
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This rule takes one optional object argument of type object:
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```json
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{
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"rules": {
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"jsx-a11y/heading-has-content": [ 2, {
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"components": [ "MyHeading" ],
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}],
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}
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}
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```
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For the `components` option, these strings determine which JSX elements (**always including** `<h1>` thru `<h6>`) should be checked for having content. This is a good use case when you have a wrapper component that simply renders an `h1` element (like in React):
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```js
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// Header.js
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const Header = props => {
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return (
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<h1 {...props}>{ props.children }</h1>
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);
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}
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...
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// CreateAccount.js (for example)
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...
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return (
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<Header>Create Account</Header>
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);
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```
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#### Bad
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```jsx
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function Foo(props) {
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return <label {...props} />
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}
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```
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### Succeed
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```jsx
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<h1>Heading Content!</h1>
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<h1><TextWrapper /><h1>
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<h1 dangerouslySetInnerHTML={{ __html: 'foo' }} />
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```
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### Fail
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```jsx
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<h1 />
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<h1><TextWrapper aria-hidden />
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```
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## Accessibility guidelines
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- [WCAG 2.4.6](https://www.w3.org/TR/UNDERSTANDING-WCAG20/navigation-mechanisms-descriptive.html)
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### Resources
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- [axe-core, empty-heading](https://dequeuniversity.com/rules/axe/3.2/empty-heading)
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