From 7ef6f4c48a3eae587e8bc7db32d5aaa809565e1b Mon Sep 17 00:00:00 2001
From: Sean McArthur <sean.monstar@gmail.com>
Date: Tue, 8 Jul 2014 21:08:09 -0700
Subject: [PATCH] dont use slice on arguments

~21% increase with multiple arguments
---
 index.js | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/index.js b/index.js
index b512746..ac1f168 100644
--- a/index.js
+++ b/index.js
@@ -40,7 +40,15 @@ var proto = defineProps(function chalk() {}, styles);
 
 function applyStyle() {
 	// support varags, but simply cast to string in case there's only one arg
-	var str = arguments.length === 1 ? String(arguments[0]) : [].slice.call(arguments).join(' ');
+	var args = arguments;
+	var argsLen = args.length;
+	var str = argsLen !== 0 && String(arguments[0]);
+	if (argsLen > 1) {
+		// don't slice `arguments`, it prevents v8 optimizations
+		for (var a = 1; a < argsLen; a++) {
+			str += ' ' + args[a];
+		}
+	}
 
 	if (!chalk.enabled || !str) {
 		return str;