Is there a way to get the name of the own field itself ?

Is there a way to get the name of the own field itself where the code is written, in the code that writes in the field?

For example, if I have a field named "ABC".

    var x = this.getField ("ABC");
    event.value = x.name;

It will be "ABC",

Is there a way to avoid to writing own field name ?
    var x = this.getField ("ABC") ;