shuffle

snippets/deep_flatten.md

@@ -24,6 +24,7 @@ def spread(arg):
 
 
 
+
 ```
 
 ```python

snippets/shuffle.md

@@ -0,0 +1,27 @@
+### shuffle
+
+Randomizes the order of the values of an list, returning a new list.
+
+Uses the [Fisher-Yates algorithm](https://en.wikipedia.org/wiki/Fisher%E2%80%93Yates_shuffle) to reorder the elements of the list.
+
+```python 
+
+from copy import deepcopy
+from random import randint
+
+
+def shuffle(arr):
+    temp_arr = deepcopy(arr)
+    m = len(temp_arr)
+    while(m):
+        m -= 1
+        i = randint(0, m)
+        temp_arr[m], temp_arr[i] = temp_arr[i], temp_arr[m]
+    return temp_arr
+
+```
+
+``` python
+foo = [1,2,3]
+shuffle(foo) # [2,3,1] , foo = [1,2,3]
+```