doc: add text about error.code stability

Fixes: nodejs#23975
Trott · Nov 4, 2018 · e027cdb · e027cdb
1 parent 978acdc
commit e027cdb
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/doc/api/errors.md b/doc/api/errors.md
@@ -260,7 +260,7 @@ not capture any frames.
 * {string}
 
 The `error.code` property is a string label that identifies the kind of error.
-See [Node.js Error Codes][] for details about specific codes.
+`error.code` is the most stable way to identify an error. It will only change between major versions of Node.js. In contrast, `error.message` strings may change between any versions of Node.js. See [Node.js Error Codes][] for details about specific codes.
 
 ### error.message