Making 0 case faster

lib/filesize.js

@@ -6,7 +6,7 @@
  * @license BSD-3 <https://raw.github.com/avoidwork/filesize.js/master/LICENSE>
  * @link http://filesizejs.com
  * @module filesize
- * @version 1.9.2
+ * @version 1.9.3
  */
 ( function ( global ) {
 	"use strict";
@@ -30,11 +30,10 @@
 	/**
 	 * filesize
 	 * 
-	 * @param  {Mixed}   arg   String, Int or Float to transform
-	 * @param  {Number}  pos   [Optional] Position to round to, defaults to 2 if short is ommitted
-	 * @param  {Boolean} short [Optional] Shorthand output, similar to "ls -lh", overrides pos to 1
-	 * @param  {Boolean} bits  [Optional] Determines if `bit` sizes are used for result calculation, default is true
-	 * @return {String}        Readable file size String
+	 * @param  {Mixed}   arg  String, Int or Float to transform
+	 * @param  {Mixed}   pos  [Optional] Position to round to, defaults to 2 if short is ommitted, or `true` for shorthand output
+	 * @param  {Boolean} bits [Optional] Determines if `bit` sizes are used for result calculation, default is true
+	 * @return {String}       Readable file size String
 	 */
 	function filesize (arg) {
 		var result = "",
@@ -73,7 +72,7 @@
 
 		// Zero is now a special case because bytes divide by 1
 		if ( num === 0 ) {
-			result = Number( 0 ).toFixed( 0 ) + "B";
+			result = "0B";
 		}
 		else {
 			if ( bits ) {

package.json

@@ -1,7 +1,7 @@
 {
   "name": "filesize",
   "description": "JavaScript library to generate a human readable String describing the file size",
-  "version": "1.9.2",
+  "version": "1.9.3",
   "homepage": "http://filesizejs.com",
   "author": {
     "name": "Jason Mulligan",

src/filesize.js

@@ -20,11 +20,10 @@
 	/**
 	 * filesize
 	 * 
-	 * @param  {Mixed}   arg   String, Int or Float to transform
-	 * @param  {Number}  pos   [Optional] Position to round to, defaults to 2 if short is ommitted
-	 * @param  {Boolean} short [Optional] Shorthand output, similar to "ls -lh", overrides pos to 1
-	 * @param  {Boolean} bits  [Optional] Determines if `bit` sizes are used for result calculation, default is true
-	 * @return {String}        Readable file size String
+	 * @param  {Mixed}   arg  String, Int or Float to transform
+	 * @param  {Mixed}   pos  [Optional] Position to round to, defaults to 2 if short is ommitted, or `true` for shorthand output
+	 * @param  {Boolean} bits [Optional] Determines if `bit` sizes are used for result calculation, default is true
+	 * @return {String}       Readable file size String
 	 */
 	function filesize (arg) {
 		var result = "",
@@ -63,7 +62,7 @@
 
 		// Zero is now a special case because bytes divide by 1
 		if ( num === 0 ) {
-			result = Number( 0 ).toFixed( 0 ) + "B";
+			result = "0B";
 		}
 		else {
 			if ( bits ) {