interface Person { id: number; name: string; age: number; } const obj: Person = { id: 1, name: 'bobby hadz', age: 30 }; // const length: number const len = Object.keys(obj).length; console.log(len); // 3
interface Person { id: number; name: string; age: number; } const obj: Person = { id: 1, name: 'bobby hadz', age: 30 }; // const length: number const len = Object.keys(obj).length; console.log(len); // 3