how to define object javas code example

Example 1: objects javascript

function Dog() {
  this.name = "Bailey"; 
  this.colour = "Golden"; 
  this.breed = "Golden Retriever";
  this.age = 8;
}

Example 2: how to create a object in javascript

var about = {
  name:"lanitoman",
  age:1023,
  isHeProgrammer:true
}