typescript interface extend type code example

Example 1: typescript extend interface

//declare interface to be extended
interface Vehicle {
  brand: string;
  plateNumber: number;
}

interface Car extends Vehicle {}

Example 2: typescript interface

interface LabeledValue {
  label: string;
}

function printLabel(labeledObj: LabeledValue) {
  console.log(labeledObj.label);
}

let myObj = { size: 10, label: "Size 10 Object" };
printLabel(myObj);Try