I have a use case as follows
var myObject1 = new myObject();
and myObject should have an array which will store all the objects created of this myObject
Example:-
if create an object such as
var xyz = new myObject();
myObject.all[0] == xyz
is there any way where - when I create an object & I can push it into an array which is in the definition of same object.
You can create a property directly on the constructor function, to get the myObject.all[0] == xyz behaviour mentioned in the question. Add each object to the array from within the constructor:
function MyObject() {
MyObject.all.push(this);
// any other initialisation tasks here
}
MyObject.all = [];
var obj1 = new MyObject();
var obj2 = new MyObject();
// to access the array use MyObject.all:
console.log(MyObject.all[1] === obj2); // trueAlternatively, you can add an array to the object prototype, but still add new objects to that array from within the constructor:
function MyObject() {
this.all.push(this);
// any other initialisation tasks here
}
MyObject.prototype.all = [];
var obj1 = new MyObject();
var obj2 = new MyObject();
// to access the array:
console.log(obj1.all);
// or
console.log(MyObject.prototype.all);
console.log(obj1.all[1] === obj2); // true
(Note: in both examples, I've spelled MyObject with a capital "M", because it is a JS convention for functions intended as constructors to be capitalised. This isn't mandatory.)
MyObject.all and that would work fine too. I've added it to my answer, because it seems to be more what the OP wanted.Maybe something like this?
function MyObject(name){
if (!O.prototype.instances) O.prototype.instances = [];
O.prototype.instances.push(name);
}
var a = MyObject('a');
var b = MyObject('b');
console.log(MyObject.prototype.instances)
