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typescript extend interface

By peachmangopiepeachmangopie on Dec 07, 2020
//declare interface to be extended
interface Vehicle {
  brand: string;
  plateNumber: number;
}

interface Car extends Vehicle {}

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2

typescript class implements interface

By Yawning YacareYawning Yacare on Feb 24, 2020
interface Task{
    name: String; //property
    run(arg: any):void; //method
}

class MyTask implements Task{
    name: String;
    constructor(name: String) {
        this.name = name;
    }
	run(arg: any): void {
        console.log(`running: ${this.name}, arg: ${arg}`);
    }
}

let myTask: Task = new MyTask('someTask');
myTask.run("test");

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12

ts extends

By GutoTroslaGutoTrosla on Jul 15, 2020
class Animal {
    name: string;
    constructor(theName: string) { this.name = theName; }
    move(distanceInMeters: number = 0) {
        console.log(`${this.name} moved ${distanceInMeters}m.`);
    }
}

class Snake extends Animal {
    constructor(name: string) { super(name); }
    move(distanceInMeters = 5) {
        console.log("Slithering...");
        super.move(distanceInMeters);
    }
}

class Horse extends Animal {
    constructor(name: string) { super(name); }
    move(distanceInMeters = 45) {
        console.log("Galloping...");
        super.move(distanceInMeters);
    }
}

let sam = new Snake("Sammy the Python");
let tom: Animal = new Horse("Tommy the Palomino");

sam.move();
tom.move(34);

Source: www.typescriptlang.org

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1

extending an interface in typescript

By Yucky YakYucky Yak on Jun 17, 2021
interface Animal {
  name: string
}
interface Bear extends Animal {
  honey: boolean
}
const bear = getBear() 
bear.name
bear.honey
        

Source: www.typescriptlang.org

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0

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