class inheritance in typescript

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showing results for - "class inheritance in typescript"
Bertille
04 Oct 2019
1class Animal {  private name: string;  constructor(theName: string) {    this.name = theName;  }}
2class Rhino extends Animal {  constructor() {    super("Rhino");  }}
3class Employee {  private name: string;  constructor(theName: string) {    this.name = theName;  }}
4let animal = new Animal("Goat");let rhino = new Rhino();let employee = new Employee("Bob");
5animal = rhino;animal = employee;Type 'Employee' is not assignable to type 'Animal'.
6  Types have separate declarations of a private property 'name'.2322Type 'Employee' is not assignable to type 'Animal'.
7  Types have separate declarations of a private property 'name'.Try
Linus
11 Nov 2017
1class Info {
2  private name: string ;
3  constructor(n:string){
4    this.name = n ;
5  };
6  describe(){
7    console.log(`Your name is  ${this.name}`);
8  }
9}
10
11const a = new Info('joyous');
12a.describe();
Valerio
04 Nov 2018
1class Animal {
2  move(distanceInMeters: number = 0) {
3    console.log(`Animal moved ${distanceInMeters}m.`);
4  }
5}
6
7class Dog extends Animal {
8  bark() {
9    console.log("Woof! Woof!");
10  }
11}
12
13const dog = new Dog();
14dog.bark();
15dog.move(10);
16dog.bark();
Nick
03 Aug 2020
1// Parent class
2class Info {
3  protected name: string ;
4  constructor(n:string){
5    this.name = n ;
6  };
7  describe(){
8    console.log(`Your name is  ${this.name}`);
9  }
10}
11
12//inherited class (you can overwrite methods of parent class, super is used to
13// connect to the parent parameter(s) . )
14
15class Detail extends Info{
16  constructor(name:string, public age:number){
17    super(name);
18  }
19  findAge(){
20      console.log(`${this.name} age is ${this.age}`)
21  }
22}
23
24const b = new Detail('jank', 23);
25b.describe();
26b.findAge();
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