/* This error means that you either need to define	the interface's properties to optional or	define all the props whereever you use them	*/
export interface Todo { id: String; title: String; completed?: boolean; // "?" means optional field
}
const newTodo: Todo = { id: '', title: '', };
todos.push(newTodo);

Type '{}' is missing the following properties from type something
just make the missing properties optional by add "?"
type something {	property?: string	//like this
}