JSFiddle - React, Tailwind, and code Playground

JavaScript

function Person(firstName, lastName) {
    this.firstName = firstName;
    this.lastName = lastName;

    this.getFullName = function() {
        return this.firstName + " " + this.lastName;
    };
}

var jeremy = new Person("Jeremy", "McPeak"),
    jeffrey = new Person("Jeffrey", "Way");

alert(jeremy.getFullName === jeffrey.getFullName);