ReasonJun

JSX.Element, ReactNode, and ReactElement are all related to React, but they have different meanings and uses. JSX.Element is a type that is used in TypeScript to represent a JSX expression. It is equivalent to the ReactElement type, but its props and type properties are both any. This means that JSX.Element can represent any kind of value, including ReactElements, strings, numbers, and objects. ..

React 18 introduces a new feature called Transitions, which allows you to optimize your user experience, especially for tasks or features that require some time to load. With Transitions, you can differentiate between in-state updates and updates that can be delayed, and show in the UI any necessary loading more efficiently for those that require more time. To use Transitions, you can use the us..

In React 18, the concept of suspense has been introduced as a built-in feature. Suspense allows you to manage and handle asynchronous operations, such as data fetching or code splitting, in a more declarative manner. It enables you to suspend the rendering of a component while it's waiting for some asynchronous work to complete, and then display fallback content until the work is finished. Here ..

Automatic batching is a feature introduced in React 18 that simplifies the process of batching multiple state updates together, reducing unnecessary re-renders and improving performance in React applications. In earlier versions of React, when multiple setState calls were made consecutively within the same event handler or lifecycle method, each state update triggered a separate re-render of the..

In React, the useRef hook is used to create a mutable reference that persists across renders. It provides a way to access and interact with DOM elements or values that may change over time without triggering a re-render of the component. The useRef hook returns a mutable ref object with a .current property. This property can hold any value and remains the same between renders. When the .current ..

In React, "debounce" refers to a technique used to delay the execution of a function or action until a certain amount of time has passed without any subsequent calls. It helps optimize performance by reducing unnecessary or frequent function invocations, particularly in scenarios like user input handling or event listeners. Debouncing is commonly used in React applications when you want to delay..