![]() React Fragments is an essential tool while working on a real-life project which consists of multiple layers of nested children, and here are some reasons why: import React from 'react'Įxport default App Should I Use React Fragments? React fragments can be used when elements are to be rendered conditionally. Notice we cannot use React Fragment short syntax while rendering lists because it does not support keys and attributes, so instead of that, we have to use it as Ĥ. We can use React fragments to render lists to avoid the creation of extra div because fragments can also have keys that help React identify the updated or deleted elements. If a parent div was used inside the render() of, then the resulting HTML will be invalid.ģ. would need to return multiple elements in order for the rendered HTML to be valid. “ Fragments are syntax that allows us to add multiple elements to a React component without wrapping them in an extra DOM node.” The SyntaxĪ typical pattern to return multiple elements is to wrap those elements in a div. This is where the Fragments API comes in. This behavior leads to several problems, including useless markup and sometimes even invalid HTML to be rendered, which is often troublesome. In most cases, the wrapper div is “irrelevant” and is only used because React components can return only one element at a time. What is a React Fragment?īefore React version 16.2 was released, whenever we needed to return multiple elements, they had to be wrapped in a single div. You can better understand the concept of react js fragments and implementation through a more detailed guide like any React js online course. So learning React will be a good career option. There is a high demand for React developers in the market. Notably, React has become popular recently-in many companies, including Facebook, Netflix, Airbnb, and Instagram. In this article, we will learn about react fragments and how you can use them. ![]() ![]() This does not significantly affect a small React application, but working on a real-life project with multiple layers of nested children can largely affect the application's response time. ![]() React didn't have any abilities to circumvent this, so that means any component of yours with multiple children would always require a wrapper, and due to this, an additional node is required in DOM. Before React v16, whenever there was a need to return a group of components/elements, we needed to wrap our elements in an enclosing. React is a powerful library that uses the components formed earlier and reuses those components when required. ![]()
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