Why does 'on change' fire when record view is loaded?

Question

I must be missing something...

Why do on change events fire when the record view is loaded before that field is indeed changed?

How can I stop the execution of an on change until the field is actually changed?

thanks,
Francesca

Francesca Shiekh · Accepted Answer

You can add the onchange event like this , so that this will trigger only on actual field change

this.model.once( "sync",
function() {
this.model.on(
"change:{field_name}",
this.{function_name},
this
);
},
this
);