Use React's useEffect to optimize your application's performance.Learn how LogRocket's Galileo cuts through the noise to proactively resolve issues in your app.Don't miss a moment with The Replay, a curated newsletter from LogRocket.Since there is no styling or data attached to the enclosing div, it can be safely replaced by a React fragment. If you inspect the above code on a browser, you’ll have the following DOM structure: Įach item gets rendered in a parent div that has no significance as a wrapper. Here, you’re simply looping through the items array and passing each item as props to the ItemRenderer component, which renders every single item on the page. This list could be static, generated from a local JSON file, or retrieved from an API.įor brevity’s sake, we’ll use a static list: >import React from 'react' Ĭonst items = Ĭonst renderItem = () => items.map((item, index) => Let’s say you want to render a list of items on the page. Let’s look at another common use case for fragments. Using any of the above three methods brings back the original layout because it eliminates the pointless div in the DOM. This is the cleanest and easiest way to use fragments it almost feels like you’re using a regular HTML element: const ChildComponent = () => ( Let’s take a look at the following code: const App = () => from 'react' įinally, you can create a React fragment on the fly using the shorthand syntax to wrap components using an empty HTML element like syntax.
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