TypeScript React

Essential types

• JSX.Element: This type represents the return value of a JSX expression. It’s an internal TypeScript type, used to describe the result of compiling JSX code. JSX.Element is functionally equivalent to ReactElement, and they can be used interchangeably. However, JSX.Element is a more general type that doesn’t include additional types that React can render, such as strings and numbers.
• ReactElement: This type represents a specific React element, an immutable object with a type, props, and a key. It’s a more generic type compared to JSX.Element, with props and type typed as any. ReactElement is often used as the return type of a React component or function.
• ReactNode: This type represents any node that React can render, including:
  • React elements
  • Strings and numbers (rendered as text nodes)
  • React fragments
  • React portals
  • Boolean values (rendered as a boolean attribute)
  • Null and undefined values (rendered as nothing)
  • Arrays of the above types