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How to convert a class to JSON in TypeScript

1 Answer

0 votes
class User {
  userid: number;
  username: string;
  age: number;

  constructor(username: string, age: number, userid: number) {
    this.userid = userid;
    this.username = username;
    this.age = age;
  }
}

const user: User = new User("A AI", 52, 93821931);

// Convert class instance to JSON
const jsonString: string = JSON.stringify(user);

console.log("JSON String:", jsonString);



/*
run:

"JSON String:",  "{"userid":93821931,"username":"A AI","age":52}" 

*/

 



answered Dec 6, 2025 by avibootz

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