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37 lines
1.6 KiB
Markdown
37 lines
1.6 KiB
Markdown
# jsx-a11y/no-onchange
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❌ This rule is deprecated.
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<!-- end auto-generated rule header -->
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⚠️ **Deprecated:** This rule is based on reports of behavior of [old browsers (eg. IE 10 and below)](https://www.quirksmode.org/dom/events/change.html#t05). In the meantime, this behavior has been corrected, both in newer versions of browsers as well as [in the DOM spec](https://bugzilla.mozilla.org/show_bug.cgi?id=969068#c2).
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Enforce usage of `onBlur` over/in parallel with `onChange` on select menu elements for accessibility. `onBlur` **should** be used instead of `onChange`, unless absolutely necessary and it causes no negative consequences for keyboard only or screen reader users. `onBlur` is a more declarative action by the user: for instance in a dropdown, using the arrow keys to toggle between options will trigger the `onChange` event in some browsers. Regardless, when a change of context results from an `onBlur` event or an `onChange` event, the user should be notified of the change unless it occurs below the currently focused element.
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## Rule details
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This rule takes no arguments.
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### Succeed
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```jsx
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<select onBlur={updateModel}>
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<option/>
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</select>
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<select>
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<option onBlur={handleOnBlur} onChange={handleOnChange} />
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</select>
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```
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### Fail
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```jsx
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<select onChange={updateModel} />
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```
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## Accessibility guidelines
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- [WCAG 3.2.2](https://www.w3.org/WAI/WCAG21/Understanding/on-input)
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### Resources
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- [onChange Event Accessibility Issues](https://web.archive.org/web/20191207202425/http://cita.disability.uiuc.edu/html-best-practices/auto/onchange.php)
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- [onChange Select Menu](https://www.themaninblue.com/writing/perspective/2004/10/19/)
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