In TypeScript, both type and interface can be used to define the shape of an object, but there are specific benefits to using type.

Type Aliases

• Union Types: type allows you to create union types.

  type Status = 'success' | 'error' | 'loading';
  

• Composability: type can be used to compose more complex types.

  type Point = { x: number; y: number };
  type Circle = Point & { radius: number };
  

• Mapped Types: type can create mapped types for advanced scenarios.

  type ReadOnly<T> = {
    readonly [P in keyof T]: T[P];
  };
  

Key Benefits

• Flexibility: type can represent any kind of type, not just object shapes.
• Simplicity: type is simpler when working with unions and intersections.
• Readability: In some cases, type can lead to more readable code, especially with complex type compositions.

Example

Using type for a component's props:

type MyComponentProps = {
  title: string;
  isVisible: boolean;
};

const MyComponent: FC<MyComponentProps> = ({ title, isVisible }) => {
  if (!isVisible) return null;

  return (
    <div>
      <h1>{title}</h1>
    </div>
  );
};

export { MyComponent };