From 34aa90e89f20acd535a04fd80a77e6bd47d9fd74 Mon Sep 17 00:00:00 2001
From: Jingguo Yao <yaojingguo@gmail.com>
Date: Mon, 9 Mar 2015 10:55:38 +0800
Subject: [PATCH 1/2] test whether arg exists in args object

---
 listings/globals/arguments-status-code.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/listings/globals/arguments-status-code.js b/listings/globals/arguments-status-code.js
index 5682fa3..b9edb19 100644
--- a/listings/globals/arguments-status-code.js
+++ b/listings/globals/arguments-status-code.js
@@ -19,6 +19,8 @@ function readFile(file) {
 
 if (process.argv.length > 0) {
   process.argv.forEach(function(arg, index) {
-    args[arg].apply(this, process.argv.slice(index + 1));
+    if (args[arg]) {
+      args[arg].apply(this, process.argv.slice(index + 1));
+    }
   });
 }

From 5e15e0ada8609a9ddb34aac4caff1bf5cc0f940b Mon Sep 17 00:00:00 2001
From: Jingguo Yao <yaojingguo@gmail.com>
Date: Wed, 11 Mar 2015 09:52:27 +0800
Subject: [PATCH 2/2] add comment token //

---
 listings/globals/bad-nexttick.js | 2 +-
 listings/globals/nexttick.js     | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/listings/globals/bad-nexttick.js b/listings/globals/bad-nexttick.js
index 08add18..4641137 100644
--- a/listings/globals/bad-nexttick.js
+++ b/listings/globals/bad-nexttick.js
@@ -3,7 +3,7 @@ var EventEmitter = require('events').EventEmitter;
 function complexOperations() {
   var events = new EventEmitter();
 
-  events.emit('success'); <co id="callout-globals-nexttick-1"/>
+  events.emit('success'); //<co id="callout-globals-nexttick-1"/>
 
   return events;
 }
diff --git a/listings/globals/nexttick.js b/listings/globals/nexttick.js
index 8bebff3..0a7ebcf 100644
--- a/listings/globals/nexttick.js
+++ b/listings/globals/nexttick.js
@@ -3,7 +3,7 @@ var EventEmitter = require('events').EventEmitter;
 function complexOperations() {
   var events = new EventEmitter();
 
-  process.nextTick(function() { <co id="callout-globals-nexttick-2"/>
+  process.nextTick(function() { //<co id="callout-globals-nexttick-2"/>
     events.emit('success');
   });