arrow functions and this keyword code example

Example 1: js arrow function this

const person = {
    firstName: 'Viggo',
    lastName: 'Mortensen',
    fullName: function () {
        return `${this.firstName} ${this.lastName}`
    },
    shoutName: function () {
        setTimeout(() => {
            //keyword 'this' in arrow functions refers to the value of 'this' when the function is created
            console.log(this);
            console.log(this.fullName())
        }, 3000)
    }
}

Example 2: Arrow Functions

// The usual way of writing function
const magic = function() {
  return new Date();
};

// Arrow function syntax is used to rewrite the function
const magic = () => {
  return new Date();
};
//or
const magic = () => new Date();