Instantiating a javascript object and populating its properties in a single line

Question

Is there a way I can do all of this in a constructor?

  obj = new Object();
  obj.city = \"A\";
  obj.town = \"B\";

Answer 1

function cat(name) {
    this.name = name;
    this.talk = function() {
        alert( this.name + " say meeow!" )
    }
} 

cat1 = new cat("felix")
cat1.talk() //alerts "felix says meeow!"