1 files changed, 9 insertions, 0 deletions

diff --git a/posts/don't_repeat_yourself.md b/posts/don't_repeat_yourself.md
new file mode 100644
index 0000000..d39267e
--- /dev/null
+++ b/posts/don't_repeat_yourself.md
@@ -0,0 +1,9 @@
+Looping constructs are bad. Consider this:
+
+```
+for (int i = 0; i < arr.len(); i++) { ... }
+```
+
+It is not obvious at all, what this loop does. Is it
+supposed to iterate over the elements of the array? Is it
+just a variable binding that increases up to `arr.len()`?