.

Author: RodrigoPombo1

List Ops.py

@@ -0,0 +1,43 @@
+def append(list1, list2):
+    return list1 + list2
+
+
+def concat(lists):
+    result = []
+    for list in lists:
+        result += list
+    return result
+
+
+def filter(function, list):
+    return [x for x in list if function(x)]
+
+
+def length(list):
+    return len(list)
+
+
+def map(function, list):
+    result = []
+    for element in list:
+        result.append(function(element))
+    return result
+
+
+def foldl(function, list, initial):
+    result = initial
+    for i in range(len(list)):
+        result = function(result, list[i])
+    return result
+
+
+def foldr(function, list, initial):
+    if len(list) == 0:
+        return initial    
+    result = list[0]
+    for i in range(1, len(list)):
+        result = function(result, list[i])
+    return result + initial
+    
+def reverse(list):
+    return list[::-1]