Instantiating A Javascript Object And Populating Its Properties In A Single Line

Is there a way I can do all of this in a constructor? obj = new Object(); obj.city = 'A'; obj.town = 'B';

Solution 1:

Why don't you just do it this way:

var obj = {"city": "A", "town": "B"};

Solution 2:

Like so:

var obj = {
    city: "a",
    town: "b"
}

Solution 3:

function MyObject(params) {
    // Your constructor
    this.init(params);
}

MyObject.prototype = {
    init: function(params) {
        // Your code called by constructor
    }
}

var objectInstance = new MyObject(params);

This would be the prototype way, which i prefere over plain object literals when i need more then one instance of the object.

Solution 4:

try this

var obj = {
    city : "A",
    town : "B"
};

Solution 5:

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

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