React Fragments have a key props! letâs say we have an array of Books objects and we want to render all books from the array. const numbers = Ĭonst listItems = numbers.map((number) => See docs here Yes, you can add a key in the below form Fragment which is not possible in the shorter version of Fragments (i.e, <></>) You can also use this way to auto assign key to your component list.It helps to identify which item has remove, add and replace. You need a key for mapping a collection to an array of fragments such as to create a description list. The empty JSX tag <></> is shorthand for in most cases.Grouping elements in Fragment has no effect on the resulting DOM it is the same as if the elements were not grouped. Grouping elements in Fragment has no effect on the resulting DOM it is the same as if the elements were not grouped. Wrap elements in to group them together in situations where you need a single element. This can be especially helpful when you have adjacent elements with keys. The shorthand syntax does not accept key attributes. Wrap elements in to group them together in situations where you need a single element.Key is the attribute that can be passed to the React Fragments. When using React Fragments in a list, you can provide a key directly to the Fragment. Follow me on Twitter and GitHub to get more useful contents. If we have multiple elements then wrap them in a single root element.Īs for example: Functional Components function CodingGyan() from "react" Ä«ooks: The only difference between them is that the shorthand version does not support the key attribute. React Fragment is useful when we have to render multiple child elements in a single root(parent) component.Īs we know React components can only render one element at a time. React Fragment helps to group a list of children without adding extra nodes to the DOM.
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