robertcoopercode · January 9, 2019 00:29
diff --git a/interfaces-annotation-1.ts b/interfaces-annotation-1.ts
 interface Animal {
    kind: string;
    weight: number;
 }

 let dog: Animal;

 dog = {
    kind: 'mammal',
    weight: 10,
 }; // ✅

 dog = {
    kind: true,
    weight: 10,
 }; // ❌ - kind should be a string
	interface Animal {
	kind: string;
	weight: number;
	}

	let dog: Animal;

	dog = {
	kind: 'mammal',
	weight: 10,
	}; // ✅

	dog = {
	kind: true,
	weight: 10,
	}; // ❌ - kind should be a string