From 6ef718c47977978e228467a8124cf678fccc88c3 Mon Sep 17 00:00:00 2001
From: Joshua Peek <josh@joshpeek.com>
Date: Mon, 22 Dec 2014 18:34:44 -0800
Subject: [PATCH 1/3] Test timers are undefined

---
 test/test_execjs.rb | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/test/test_execjs.rb b/test/test_execjs.rb
index becda22..d093d8f 100644
--- a/test/test_execjs.rb
+++ b/test/test_execjs.rb
@@ -230,6 +230,15 @@ class TestExecJS < Test
     assert ExecJS.eval("typeof console == 'undefined'")
   end
 
+  def test_timers_are_undefined
+    assert ExecJS.eval("typeof setTimeout == 'undefined'")
+    assert ExecJS.eval("typeof setInterval == 'undefined'")
+    assert ExecJS.eval("typeof clearTimeout == 'undefined'")
+    assert ExecJS.eval("typeof clearInterval == 'undefined'")
+    assert ExecJS.eval("typeof setImmediate == 'undefined'")
+    assert ExecJS.eval("typeof clearImmediate == 'undefined'")
+  end
+
   def test_compile_large_scripts
     body = "var foo = 'bar';\n" * 100_000
     assert ExecJS.exec("function foo() {\n#{body}\n};\nreturn true")

From 1d885c1e36e3a4157312e49068e21b87549b3e38 Mon Sep 17 00:00:00 2001
From: Joshua Peek <josh@joshpeek.com>
Date: Mon, 22 Dec 2014 18:34:53 -0800
Subject: [PATCH 2/3] Clear timers in node.js

---
 lib/execjs/support/node_runner.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/execjs/support/node_runner.js b/lib/execjs/support/node_runner.js
index 86b91d1..c27e6c0 100644
--- a/lib/execjs/support/node_runner.js
+++ b/lib/execjs/support/node_runner.js
@@ -1,4 +1,4 @@
-(function(program, execJS) { execJS(program) })(function(module, exports, require, console) { #{source}
+(function(program, execJS) { execJS(program) })(function(module, exports, require, console, setTimeout, setInterval, clearTimeout, clearInterval, setImmediate, clearImmediate) { #{source}
 }, function(program) {
   var output, print = function(string) {
     process.stdout.write('' + string);

From e1a13f62b51d7a5bdf1ac094b1299f60e42b166f Mon Sep 17 00:00:00 2001
From: Joshua Peek <josh@joshpeek.com>
Date: Mon, 22 Dec 2014 18:39:14 -0800
Subject: [PATCH 3/3] Add timer question to faq

---
 README.md | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/README.md b/README.md
index 92f812c..a84f397 100644
--- a/README.md
+++ b/README.md
@@ -52,6 +52,11 @@ in. If you want to access the Node API, you should check another library like
 [commonjs.rb](https://github.com/cowboyd/commonjs.rb) designed to provide a
 consistent interface.
 
+**Why can't I use `setTimeout`**
+
+For similar reasons as modules, not all runtimes guarantee a full JavaScript
+event loop. So `setTimeout`, `setInterval` and other timers are not defined.
+
 
 # License