Hands-On Functional Programming with TypeScript

Arrow functions

In TypeScript, we can declare a function using a function expression or an arrow function. An arrow function expression has a shorter syntax than a function expression and lexically binds the value of the this operator.

The this operator behaves a little differently in TypeScript and JavaScript compared to other popular programming languages. When we define a class in TypeScript, we can use the this operator to refer to the class. Let's look at an example:

class Person {    private _name: string;    constructor(name: string) {        this._name = name;    }    public greet() {        console.log('Hi! My name is ${this._name}');    }}let person = new Person("Remo");person.greet(); // "Hi! My name is Remo"

We have defined a class named Person that contains ...