CODEWITHSUNDEEP
backbone.js
Ioquai
Ioquai

Reputation: 387

Backbone.js : initialize Model with dynamic name

In backbone.js I can initialize a model with

var model = new MyModel();

But I would like to initialize a model with a dynamic name - like "MyDynamicModel". How can I achieve this?

Upvotes: 1

Views: 86

Answers (2)

miklern
miklern

Reputation: 11

If your models are declared globally (on the window object), then you can use the square bracket notation:

var Model = window[modelName]; // Assuming modelName is the dynamic name of your model
var model = new Model();

Or, if your models are namespaced under something like App.Models:

var Model = App.Models[modelName];
var model = new Model();

As a last resort, you can use Javascript's eval function, but in general this should be avoided.

var Model = eval(modelName);
var model = new Model();

Upvotes: 1

Tohveli
Tohveli

Reputation: 485

You can use a wrapper object to get somewhat similar outcome. 

var wrapper = {
    "myDynamicName": new MyModel(),
    "myOtherModel": new MyModel()
    }

Then you can call it like this:

wrapper["myDynamicName"].render();

Upvotes: 0

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