From b2d737bec5cb1f0e9242d0fdcb87d3ed7c0a2d67 Mon Sep 17 00:00:00 2001
From: King <kingdavidmartins@users.noreply.github.com>
Date: Wed, 13 Dec 2017 16:51:34 -0500
Subject: [PATCH 1/3] add pick code snippiet

---
 snippets/pick.md | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)
 create mode 100644 snippets/pick.md

diff --git a/snippets/pick.md b/snippets/pick.md
new file mode 100644
index 000000000..5523e1fe5
--- /dev/null
+++ b/snippets/pick.md
@@ -0,0 +1,23 @@
+### Pick
+
+Use `Objexts.keys()` to convert given object to an iterable arr of keys.
+Use `.filter()` to filter the given arr of keys to the expected arr of picked keys.
+Use `.reduce()` to convert the filtered/picked keys back to a object with the corresponding key:value pair.
+
+```js
+const pick = (obj, arr) =>
+  Object
+    .keys(obj)
+    .filter((v, i) => arr.indexOf(v) !== -1 )
+    .reduce((acc, cur, i) => {
+      acc[cur] = obj[cur];
+      return acc;
+    }, {});
+
+// const object = { 'a': 1, 'b': '2', 'c': 3 };
+// pick(object, ['a', 'c']) -> { 'a': 1, 'c': 3 }
+
+// pick(object, ['a', 'c'])['a'] -> 1
+// pick(object, ['a', 'c'])['c'] -> 3
+
+```
\ No newline at end of file

From 13c4782c69accfdfe7b8b7f597f6c87f4770e4c8 Mon Sep 17 00:00:00 2001
From: King <kingdavidmartins@users.noreply.github.com>
Date: Wed, 13 Dec 2017 17:41:24 -0500
Subject: [PATCH 2/3] update pick.md -> oneline & simpler solution

---
 snippets/pick.md | 13 ++-----------
 1 file changed, 2 insertions(+), 11 deletions(-)

diff --git a/snippets/pick.md b/snippets/pick.md
index 5523e1fe5..c3b5cd2f2 100644
--- a/snippets/pick.md
+++ b/snippets/pick.md
@@ -1,18 +1,9 @@
 ### Pick
 
-Use `Objexts.keys()` to convert given object to an iterable arr of keys.
-Use `.filter()` to filter the given arr of keys to the expected arr of picked keys.
-Use `.reduce()` to convert the filtered/picked keys back to a object with the corresponding key:value pair.
+Use `.reduce()` to convert the filtered/picked keys back to a object with the corresponding key:value pair if the key exist in the obj.
 
 ```js
-const pick = (obj, arr) =>
-  Object
-    .keys(obj)
-    .filter((v, i) => arr.indexOf(v) !== -1 )
-    .reduce((acc, cur, i) => {
-      acc[cur] = obj[cur];
-      return acc;
-    }, {});
+const pick = (obj, arr) => arr.reduce((acc, curr) => (curr in obj && (acc[curr] = obj[curr]), acc), {});
 
 // const object = { 'a': 1, 'b': '2', 'c': 3 };
 // pick(object, ['a', 'c']) -> { 'a': 1, 'c': 3 }

From 383d7a57e4cfd712ff0a640aa77f7a189e55fcbd Mon Sep 17 00:00:00 2001
From: King <kingdavidmartins@users.noreply.github.com>
Date: Wed, 13 Dec 2017 17:51:28 -0500
Subject: [PATCH 3/3] ran| npm run build-list

---
 README.md | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/README.md b/README.md
index b77013e78..b5aef54c6 100644
--- a/README.md
+++ b/README.md
@@ -45,6 +45,7 @@
 * [Median of array of numbers](#median-of-array-of-numbers)
 * [Object from key value pairs](#object-from-key-value-pairs)
 * [Percentile](#percentile)
+* [Pick](#pick)
 * [Pipe](#pipe)
 * [Powerset](#powerset)
 * [Promisify](#promisify)
@@ -455,6 +456,20 @@ const percentile = (arr, val) =>
 // percentile([1,2,3,4,5,6,7,8,9,10], 6) -> 55
  ```
 
+### Pick
+
+Use `.reduce()` to convert the filtered/picked keys back to a object with the corresponding key:value pair if the key exist in the obj.
+
+```js
+const pick = (obj, arr) => arr.reduce((acc, curr) => (curr in obj && (acc[curr] = obj[curr]), acc), {});
+
+// const object = { 'a': 1, 'b': '2', 'c': 3 };
+// pick(object, ['a', 'c']) -> { 'a': 1, 'c': 3 }
+
+// pick(object, ['a', 'c'])['a'] -> 1
+// pick(object, ['a', 'c'])['c'] -> 3
+
+```
 ### Pipe
 
 Use `Array.reduce()` to pass value through functions.