TypeScript Tutorial for Beginners: Getting Started
Learn TypeScript in One Hour - Crash Course
TypeScript Fundamentals: Variables, Types, and Functions
TypeScript Object-Oriented Programming (OOP) Basics
Asynchronous Programming in TypeScript with Promises and Async/Await
TypeScript and React: Building a Simple Todo App
Advanced TypeScript Concepts: Generics and Decorators Explained
TypeScript vs. JavaScript: Key Differences and When to Use Each
instanceof Type Guard:
How to use type guards in TypeScript
The instanceof operator is used to check if an object is an instance of a specific class or constructor function.
With this type guard, we can test if an object or value is derived from a class, which is useful for determining the type of an instance type
class Car {
drive() {
console.log('Driving the car');
}
}
class Bicycle {
ride() {
console.log('Riding the bicycle');
}
}
function travel(vehicle: Car | Bicycle): void {
if (vehicle instanceof Car) {
vehicle.drive(); // TypeScript knows vehicle is a Car here
} else {
vehicle.ride(); // TypeScript knows vehicle is a Bicycle here
}
}
you have two classes: Car and Bicycle, each representing a different type of vehicle. The Car class has a method drive, and the Bicycle class has a method ride. You also have a function travel that takes a parameter vehicle of type Car | Bicycle, which means it can accept values that are either a Car or a Bicycle. The purpose of the travel function is to take this vehicle and perform an action based on its type.Please do like share and comment if you like the video please do hit like and if you have any query please write it comment box
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