To Assign multiple elements to a variable 3. Vì vy v c bn chúng ta có th s dng React.Fragment thay th cho nhng ni chúng ta th div bao bc các phn t. A lot of the complexity of the ReactNode data structure is handled by the React helper methods and, like how they flatten Arrays for example, but they do NOT flatten Fragments. React fragments cho phép bn nhóm các phn t và o vi nhau mà không cn phi b sung mt th nà o bao bc chúng và nó cng s không th hin ra HTML. function MyBlog() Usage of React Fragment 1. Im using React.cloneElement to let a parent component control some of the props of its children. With the above syntax, I dont think it is possible. So, It might affect the styling and structure of the web page. Therefore needed to add a key property to the React fragment <>. Because there is no use of a div element in the DOM. In JSX, a React fragment is created either with ., or, using the shorthand syntax, <>.</>. To specify a key for a fragment, youll need to use the standard JSX element syntax you cant use the new <></> syntax. Fragment c khai bo di dng c php r rng c h tr khai bo t kha (key).When you run your app, âdivâ will be created in DOM as an extra node. ![]() Suppose we have created a component named MyBlog and return h1 & p elements by wrapping them with the âdivâ element. It will be very helpful when you need to return multiple elements from a component without adding an extra node in the real DOM.Ī Fragment can be defined with these syntaxes â V th, trong bi vit ny, chng ta s tm hiu chi tit v React. D React Fragments xut hin kh lu, nhng vn cn mt s developer cha hiu c l do s dng chng. React Fragment is a useful feature for creating cleaner and more efficient React components. React Fragments c gii thiu trong phin bn React 16.2. In this tutorial, weâll cover the concept and usage of React Fragments with clear examples. It is very useful to keep your JSX clean and avoid unnecessary elements in the rendered output. Fragment is a powerful feature in React JS that is used to group multiple elements without extra nodes in the DOM.
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