[Solved] Given the interface and code below, what will be the output of console.log(user.age)? interface User { name: string; age: number; } const user: User = { name: 'Anna', age: 30 }; console.log(user.age); | Angular

Angular - TypeScript in Angular

Given the interface and code below, what will be the output of console.log(user.age)?

interface User {
  name: string;
  age: number;
}

const user: User = { name: 'Anna', age: 30 };
console.log(user.age);

Aundefined

BAnna

C30

DError: Property 'age' does not exist

Step-by-Step Solution

Solution:

Step 1: Understand the interface and object
The interface User requires name as string and age as number. The object user matches this with name: 'Anna' and age: 30.
Step 2: Check the console.log output
Logging user.age will output the number 30, as defined in the object.
Final Answer:
30 -> Option C
Quick Check:
Accessing user.age = 30 [OK]

Quick Trick: Interface ensures object has age; console logs that value [OK]

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Given the interface and code below, what will be the output of console.log(user.age)?