Luke
0
Q:

typescript interface vs type

// for starters:
// interfaces and types are very similar, they just differ in syntax

// interface
interface Car {
  name: string;
  brand: string;
  price: number;
}

// type
type Car = {
  name: string;
  brand: string;
  price: number;
}

// interface
interface Car extends Vehicle {
  name: string;
  brand: string;
  price: number;
}

// type
type Car = Vehicle & {
  name: string;
  brand: string;
  price: number;
}
0
//difference b/w type and interface

/////////////////////// types reference another types
type FormElement = React.FormEvent<HTMLFormElement>; 

// How to use?
 const handleSubmit = (e: FormElement): void => { ... }

 
/////////////////////// interface create new types and
///////////////////////	also we can extend other interfaces

interface MyTodo {
  text: string;
  complete: boolean;
}
                                                 
interface MyTodo2 extends MyTodo {
  // also have all values from MyTodo
  tags: string[]
}
                                                 
// How to use? 
const [todos, setTodos] = useState<MyTodo[]>([]);
 

-1

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