doc: Add example of null to assert.ifError

PR-URL: nodejs#18236 Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de> Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Michaël Zasso <targos@protonmail.com>
MayaLekova · May 8, 2018 · 5ac5a7a · 5ac5a7a
1 parent 68bc3b2
commit 5ac5a7a
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/doc/api/assert.md b/doc/api/assert.md
@@ -442,6 +442,8 @@ argument in callbacks.
 ```js
 const assert = require('assert').strict;
 
+assert.ifError(null);
+// OK
 assert.ifError(0);
 // OK
 assert.ifError(1);