Can I create dynamic object names in JavaScript? [duplicate]

Answer 1

You can create, and you can set/modify properties of that object.

Modified code:

var obj = {}; //
for (i=0;i<num;i++){
  obj[i] = new myObject("param1","param2");
  obj[i].someProperty = value;
}

I recommend you to use array. as

 var obj = []; //
    for (i=0;i<num;i++){
      obj[i] = new myObject("param1","param2");
      obj[i].someProperty = value;
    }

Answer 2

That's what arrays are for, to hold a collection of something:

var objs = [];
for (i=0;i<num;i++){
  objs[i] = new myObject("param1","param2");
  objs[i].someProperty = value;
}

Dynamic variables are almost always a bad idea.

Answer 3

This isn't recommended, but does what you're trying to do (if you're running in a browser and not some other js environment).

for (i = 0; i < num; i++) {
  window['obj' + i] = new myObject("param1","param2");
  window['obj' + i].someProperty = value;
}
obj0.someProperty;

This works because global variables are actually properties of the window object (if you're running in the browser). You can access properties of an object using either dot notation (myObject.prop) or bracket notation (myObject['prop']). By assigning window['obj' + i], you're creating a global variable named 'obj' + i.

The better option is to use an array or parent object to store your objects.

myObjs = {};
for (i = 0; i < num; i++) {
  myObjs['obj' + i] = new myObject("param1","param2");
  myObjs['obj' + i].someProperty = value;
}
myObjs.obj0.someProperty;

Or use an array like lots of other answers suggest.