Add find snippets

snippets/find_last.md

@@ -0,0 +1,17 @@
+---
+title: find_last
+tags: list,beginner
+---
+
+Returns the value of the last element in the provided list that satisfies the provided testing function.
+
+Use list comprehension and `next()` to return the last element in `lst` for which `fn` returns `True`.
+
+```py
+def find_last(lst, fn):
+  return next(x for x in lst[::-1] if fn(x))
+```
+
+```py
+find_last([1, 2, 3, 4], lambda n: n % 2 == 1) # 3
+```