From 492d63916c2f886335c6557e6305444828e38470 Mon Sep 17 00:00:00 2001
From: Sindre Sorhus <sindresorhus@gmail.com>
Date: Sun, 8 Dec 2013 01:07:21 +0100
Subject: [PATCH] don't output escape codes if the input is empty

---
 chalk.js | 2 +-
 test.js  | 4 ++++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/chalk.js b/chalk.js
index c2b9428..50ad65f 100644
--- a/chalk.js
+++ b/chalk.js
@@ -38,7 +38,7 @@ function init() {
 
 					return self._styles.reduce(function (str, name) {
 						var code = ansi[name];
-						return code.open + (str || '') + code.close;
+						return str ? code.open + str + code.close : '';
 					}, str);
 				}, styles);
 
diff --git a/test.js b/test.js
index b27323f..53b62f2 100644
--- a/test.js
+++ b/test.js
@@ -37,6 +37,10 @@ describe('chalk', function () {
 	it('should support falsy values', function () {
 		assert.equal(chalk.red(0), '\x1b[31m0\x1b[39m');
 	});
+
+	it('don\'t output escape codes if the input is empty', function () {
+		assert.equal(chalk.red(), '');
+	});
 });
 
 describe('chalk.enabled', function () {