From 28f2abe1a20a7f7f758b42c233deb7daa78406b1 Mon Sep 17 00:00:00 2001
From: Andreas Rumpf <rumpf_a@web.de>
Date: Thu, 3 Jun 2021 20:55:41 +0200
Subject: [PATCH] fixes #18112 (#18165)

---
 compiler/docgen.nim | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/compiler/docgen.nim b/compiler/docgen.nim
index 18c568ba0b..dc2a63f48b 100644
--- a/compiler/docgen.nim
+++ b/compiler/docgen.nim
@@ -20,7 +20,7 @@ import
 
 from uri import encodeUrl
 from std/private/globs import nativeToUnixPath
-
+from nodejs import findNodeJs
 
 const
   exportSection = skField
@@ -430,7 +430,9 @@ proc runAllExamples(d: PDoc) =
       "rdoccmd", group.rdoccmd,
       "docCmd", group.docCmd,
     ]
-    if os.execShellCmd(cmd) != 0:
+    if d.conf.backend == backendJs and findNodeJs() == "":
+      discard "ignore JS runnableExample"
+    elif os.execShellCmd(cmd) != 0:
       d.conf.quitOrRaise "[runnableExamples] failed: generated file: '$1' group: '$2' cmd: $3" % [outp.string, group[].prettyString, cmd]
     else:
       # keep generated source file `outp` to allow inspection.