Each component is rendered as expected.1 Do React fragments need keys? It takes up less memory and renders components faster. We can write cleaner, more readable code with React Fragments. With React Fragment, you can render multiple elements of a component without adding extra div tags. Therefore, React fragments are better than the ‘div’ tags. These fragments do not produce any extra elements in the DOM, which means that a fragment’s child components will render without any wrapping DOM node.2 Why we use React fragment instead of DIV? Why do we use fragments in React? React fragments serve as a cleaner alternative to using unnecessary divs in our code. If one needs a wrapper for JSX styling, use a div instead.1 Why do we use React fragment? So, in Conclusion, React Fragments help wrap multiple elements/components together as it is better optimized, but they should only be used when needed. We can avoid issues that break layouts or potentially optimize our markup rendering time using fragments. The only difference between them is that the shorthand version does not support the key attribute. Fragment which allows us to group a list of elements without wrapping them in a new node. Fragment will not add any additional elements into the DOM tree, whereas, using a div will add a div to the DOM tree. This can be useful when rendering multiple child elements/components in a single parent component. React Fragments allow you to wrap or group multiple elements without adding an extra node to the DOM. I hope you found this article useful.We were able to fix the React-Fragment problem by looking at a number of different examples. They make it much easier to render groups of elements without the need for additional mark-up. React fragments can also be used when conditionally render elements. This is easy with fragments, and you don’t need a wrapper div for the elements. The most basic use case for React fragments is probably when you want to return multiple elements. React Fragments are commonly used in these cases. They can make rendering groups of elements much easier by eliminating the use of extra div elements. When elements are rendered conditionally, React fragments can be used. When you need to return multiple elements, React fragments are probably the most popular use case. On the contrary, consider them, a way to avoid unnecessary tags and, as a result, achieve a better mark-up structure. So, don’t think of React Fragments as a replacement for the s in your HTML. In general, you should use React Fragments whenever you would otherwise use an unnecessary wrapper to make your component return more than one HTML element. React Fragments can also be used with a short syntax that resembles an empty tag: Unlike the previous case, this will not result in invalid HTML. The Table component would then be converted into the following HTML:Īs you can see, there is no wrapping tag in the rendered HTML. In the previous example, the Columns component would appear as follows. You can use React Fragments by using the tag to wrapping your child elements that return by your component. React Fragments were introduced precisely to solve this issue. This would result in invalid HTML to be rendered because the wrapper from the Columns component is rendered inside the. the wrapper div used to return two tags Īssume you have a Table component that renders an HTML table, and the columns are rendered by another component called Columns. This would result in the following HTML to be rendered, which is incorrect because a can’t appear as a child of. The most common choice would be to use a wrapper. This is because React requires components return only one HTML element. React Fragments do not produce any more DOM elements, therefore the child components of a Fragment will be rendered without any wrapping DOM node. Fragments are a new way to add many elements to a React Component without having to wrap them in a DOM node. React fragments were first introduced in November 2017.
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