adds 'core/last' emitting the last event. Useful for reduce/fold too.

.circleci/config.yml

@@ -57,7 +57,7 @@ jobs:
           name: Install Local JavaScript Dependencies
           command: |
             nvm use default
-            npm install
+            npm install --legacy-peer-deps
 
       # Store a cache of local JavaScript modules.
       - save_cache:
@@ -111,7 +111,7 @@ jobs:
           name: Install Local JavaScript Dependencies
           command: |
             nvm use node
-            npm install
+            npm install --legacy-peer-deps
 
       # Store a cache of local JavaScript modules.
       - save_cache:
@@ -132,13 +132,13 @@ workflows:
     jobs:
       - Test-LTS
       # filters:
-      #   # Define rules to allow/block exeution of specific branches.
+      #   # Define rules to allow/block execution of specific branches.
       #   branches:
       #     only:
       #       - master
       - Test-Latest
         # filters:
-        #   # Define rules to allow/block exeution of specific branches.
+        #   # Define rules to allow/block execution of specific branches.
         #   branches:
         #     only:
         #       - master

docs/api.rst

@@ -887,6 +887,28 @@ Discard the first *n* events from ``stream``. ::
 
 If ``stream`` contains fewer than *n* events, the returned :ref:`Stream` will be empty.
 
+.. _last:
+
+last
+````
+
+.. code-block:: haskell
+
+  last :: Stream a -> Stream a
+
+Emits the last event from ``stream`` and then ends. ::
+
+  stream:       -a-b-c|
+  last(stream): -----c|
+
+``fold`` (aka ``reduce``) a ``stream``:
+
+.. code-block:: javascript
+
+  import { compose } from '@most/prelude'
+  // Like reduce for Array
+  fold = (reducer, seed) => compose(last, scan(reducer, seed))
+
 .. _takeWhile:
 
 takeWhile