Create sketch_2021_03_06b_compare_lists.pyde

2021/sketch_2021_03_06b_compare_lists/sketch_2021_03_06b_compare_lists.pyde

@@ -0,0 +1,28 @@
+list_a = ["A", "B", "C", "D", "F"] 
+list_b = ["A", "C", "D", "E", "F"]
+
+def setup():
+    size(400, 400)
+    fill(0); textFont(createFont("Inconsolata Condensed Bold", 22))
+    text("1st list: " + str(list_a), 10, 30)
+    text("2nd list: " + str(list_b), 10, 60)
+    text("New in 2nd: " + str(new_elements(list_a, list_b)), 10, 90)
+    text("Missing in 2nb: " + str(missing_elements(list_a, list_b)), 10, 120)
+        
+# naive
+        
+def new_elements(a, b):
+    return [element for element in b
+            if element not in a]
+        
+def missing_elements(a, b):
+    return [element for element in a
+            if element not in b]
+        
+# with sets - order not guaranteed
+
+def new_elements(a, b):
+    return list(set(b) - set(a))
+
+def missing_elements(a, b):
+    return list(set(a) - set(b))