From 731cce5fb408bc46ab27a7f1edb0eabee59bed0b Mon Sep 17 00:00:00 2001
From: Yash Masani <yash.masani@gmail.com>
Date: Sat, 21 Oct 2023 15:02:36 -0400
Subject: [PATCH] feat: add error docs for E0423

---
 docs/errors/E0423.md | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)
 create mode 100644 docs/errors/E0423.md

diff --git a/docs/errors/E0423.md b/docs/errors/E0423.md
new file mode 100644
index 0000000000..367619122d
--- /dev/null
+++ b/docs/errors/E0423.md
@@ -0,0 +1,29 @@
+# E0423: missing fallthrough comment in switch case
+
+Switch Cases in javascript fallthrough to the next case if the `break` statement is not added at the end of the case.
+Since there is no explicit way of communication whether the fallthrough is intentional or not, it is recommended to use a comment indicating fallthrough.
+
+```javascript
+function test (c) {
+  switch (c) {
+    case 1:
+      foo();
+    default:
+      bar();
+  }
+}
+```
+
+To fix this error, place a comment at the end of `case 1` indicating fallthrough
+
+```javascript
+function test (c) {
+  switch (c) {
+    case 1:
+      foo();
+      //fallthrough
+    default:
+      bar();
+  }
+}
+```