Arrow function VS Anonymous function

.js

//Considering this code.

var person = 👩🏻‍🦰; 

var myObjectLiteral = {
    person: "👩🏻‍🦳",
    sayHi: function(){ console.log(`Hi ${this.person}`)}
} // Hi "👩🏻‍🦳

var myObjectLiteral = {
    person: "👩🏻‍🦳",
    sayHi: () => { console.log(`Hi ${this.person}`)}
} // Hi 👩🏻‍🦰