set an javascript object code example

Example 1: js create object with properties

function Car(make, model, year) {
  this.make = make;
  this.model = model;
  this.year = year;
}

Example 2: object set js

let nombres = [10, 45, 75, 10 ,24,45 ] ;
//let monSet = new Set(nombres) ;
let monSet = new Set() ;

monSet.add('100') ;
monSet.add('280') ; 
//monSet.delete('100');

console.log(monSet.size) ;