Although it might still have some limitations it's still more than nothing. They have a jsx-key rule that might help you. The fragment element (<></>) is the top-level child element here, and it needs a key prop.You could give eslint-plugin-react a try. This might work but you are right: it's time consuming - then again, what isn't? :) For simplicityâs sake the keyboard events to enable arrow key interaction of the popover options have not been implemented. Also note the added aria- props to support screen-reader users. Undoing changes chronologically until the error disappears. This code exposes the functionality to both pointer device and keyboard users. Having composed names for keys you can easily find the component that raised the warning - ex: find add some-element- in your code since the warning shows the name of the duplicate key. Using index as key is considered an anti-pattern but it can sure help you get passed this issue. However, this breaks down in one situation: if you have two sets of children that you need to reorder, thereâs no way to put a key on each. In most cases, you can use the key prop to specify keys on the elements youâre returning from render. What are effective strategies for finding the offensive tag? import createFragment from react-addons-create-fragment // ES6 var createFragment require. Most often you would use IDs from your data as keys. But the key prop can be used on just any React component (not only in lists). After adding a key to each element, the warning disappears. The best way to pick a key is to use a string that uniquely identifies a list item among its siblings. The key props is used by React to determine which of the components in the collection needs to be re-rendered instead of re-rendering the whole collection.
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