Tracie Padget
Tracie Padget
Programming language:TypeScript
2021-03-09 08:01:56
0
Q:

extends vs implements in typescript

Zia
Zia
Code: TypeScript
2021-09-13 11:44:11 
class Person {
  name: string;
  age: number;

  walk(): void {
    console.log('Walking (person Class)')
  }

  constructor(name: string, age: number) {
    this.name = name;
    this.age = age;
  }
}
class child extends Person { }

// Man has to implements at least all the properties
// and methods of the Person class
class man implements Person {
  name: string;
  age: number

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

  walk(): void {
    console.log('Walking (man class)')
  }

}

(new child('Mike', 12)).walk();
// logs: Walking(person Class)

(new man('Tom', 12)).walk();
// logs: Walking(man class)
1

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