.. !!!AUTO!!! (remove this comment to edit)

.. include:: operator-aliases.rst

.. testsetup:: *

   import rx


.. currentmodule:: rx

.. _operator-header-first:
.. _operator-header-first_or_default:
.. _operator-header-single:
.. _operator-header-single_or_default:


First
=====

.. seealso::

   - Official ReactiveX documentation:
     `First <http://reactivex.io/documentation/operators/first.html>`_



.. _operator-first:

.. automethod:: Observable.first

   
   .. image:: /img/reactivex/operators/first.png
      :align: center
   
   .. image:: /img/reactivex/operators/B.first.p.png
      :align: center
   


.. _operator-first_or_default:

.. automethod:: Observable.first_or_default

   
   .. image:: /img/reactivex/operators/firstOrDefault.png
      :align: center
   
   .. image:: /img/reactivex/operators/B.firstOrDefault.p.png
      :align: center
   


.. _operator-single:

.. automethod:: Observable.single

   
   .. image:: /img/reactivex/operators/single.png
      :align: center
   
   .. image:: /img/reactivex/operators/B.single.p.png
      :align: center
   


.. _operator-single_or_default:

.. automethod:: Observable.single_or_default

   
   .. image:: /img/reactivex/operators/singleOrDefault.png
      :align: center
   
   .. image:: /img/reactivex/operators/B.singleOrDefault.p.png
      :align: center