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robertcoopercode/interfaces-annotation-1.ts

Created January 9, 2019 00:29
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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
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