How to detect that model is setting up first time?

@kishangajjar wrote:

I am using ModelChangeListener for sending changes to server.
But when initially a page is opened and for the first time i am setting up model's nodeDataArray and linkDataArray. Then also it is being fired.

So it sends all requests to server. i don't want to fire this events when first time a model is being setup.

how can i do that ?

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