jQuery keydown event - remove specific handler

The keydown event can be attached to any element
but the event is only sent to form elements

If you'd like to remove specific handler that registered keydown event
you can use namespace such as ".myPlugin"

let moveToPrevItem = (e) => {
  if(e.shiftKey && e.which === 37){
    this._movePrev();
    e.preventDefault();
    return false;
  }
};

let moveToNextItem = (e) => {
  if((e.ctrlKey || e.shiftKey) && e.which === 39){
    this._moveNext();
    e.preventDefault();
    return false;
  }
};

$(document).off('keydown.toPrevItem');
$(document).on('keydown.toPrevItem', keyDownToPrevItem);
$(document).off('keydown.toNextItem');
$(document).on('keydown.toNextItem', keyDownToNextItem);    

- http://api.jquery.com/off