In short, yes it is. but its way of doing it is a bit different from most class-based object-oriented languages, because JavaScript is not a class-based language, it's a prototype-based language. JavaScript takes the concept of a prototypical object , an object that is used as a template from which the initial set of properties of a new object is obtained."

Example:

 function Perro(nombre, edad) { let perro = Object.create(ObjetoConstructor); perro.nombre = nombre; perro.edad = edad; return perro; } let ObjetoConstructor = { habla: function(){ return "¡Soy un perro!" } } let firulais = Perro("Firulais", 9); console.log(firulais);

Output:

 {edad: 9, nombre: "firulais", <prototype>: {habla: function habla()}}

If you want to know more about the subject here I leave you a blog that talks specifically about the subject: https://www.freecodecamp.org/espanol/news/programacion-orientada-a-objectos-en-javascript-explained-with-examples /