Removing unnecessary typeof operators

lib/filesize.js

@@ -6,7 +6,7 @@
  * @license BSD-3 <http://opensource.org/licenses/BSD-3-Clause>
  * @link http://filesizejs.com
  * @module filesize
- * @version 1.7.4
+ * @version 1.7.5
  */
 
 (function (global) {
@@ -24,16 +24,16 @@
 		var base = 10,
 		    bit, byte, i, neg, num, pos, regex, result, short, size, sizes, suffix, z, zero;
 
-		if (typeof arguments[2] !== "undefined") {
+		if (arguments[2] !== undefined) {
 			pos   = arguments[1];
 			short = arguments[2];
 		}
 		else typeof arguments[1] === "boolean" ? short = arguments[1] : pos = arguments[1];
 
-		if (isNaN(arg) || (typeof pos !== "undefined" && isNaN(pos))) throw Error("Invalid arguments");
+		if (isNaN(arg) || (pos !== undefined && isNaN(pos))) throw Error("Invalid arguments");
 
 		short  = (short === true);
-		pos    = short ? 1 : (typeof pos === "undefined" ? 2 : parseInt(pos, base));
+		pos    = short ? 1 : (pos === undefined ? 2 : parseInt(pos, base));
 		num    = Number(arg);
 		neg    = (num < 0);
 		sizes  = [["B", 0], ["Kb", 128], ["KB", 1024], ["Mb", 131072], ["MB", "1.049e+6"], ["Gb", "1.342e+8"], ["GB", "1.074e+9"], ["Tb", "1.374e+11"], ["TB", "1.1e+12"], ["Pb", "1.407e+14"], ["PB", "1.126e+15"]];
@@ -57,7 +57,7 @@
 					if (bit.test(suffix)) suffix = suffix.toLowerCase();
 					suffix = suffix.slice(0, 1);
 					z      = regex.exec(result);
-					if (z !== null && typeof z[1] !== "undefined" && zero.test(z[1])) result = parseInt(result, base);
+					if (z !== null && z[1] !== undefined && zero.test(z[1])) result = parseInt(result, base);
 				}
 				result += suffix;
 				break;

package.json

@@ -1,7 +1,7 @@
 {
   "name": "filesize",
   "description": "JavaScript library to generate a human readable String describing the file size",
-  "version": "1.7.4",
+  "version": "1.7.5",
   "homepage": "http://filesizejs.com",
   "author": {
     "name": "Jason Mulligan",

src/filesize.js

@@ -13,16 +13,16 @@
 		var base = 10,
 		    bit, byte, i, neg, num, pos, regex, result, short, size, sizes, suffix, z, zero;
 
-		if (typeof arguments[2] !== "undefined") {
+		if (arguments[2] !== undefined) {
 			pos   = arguments[1];
 			short = arguments[2];
 		}
 		else typeof arguments[1] === "boolean" ? short = arguments[1] : pos = arguments[1];
 
-		if (isNaN(arg) || (typeof pos !== "undefined" && isNaN(pos))) throw Error("Invalid arguments");
+		if (isNaN(arg) || (pos !== undefined && isNaN(pos))) throw Error("Invalid arguments");
 
 		short  = (short === true);
-		pos    = short ? 1 : (typeof pos === "undefined" ? 2 : parseInt(pos, base));
+		pos    = short ? 1 : (pos === undefined ? 2 : parseInt(pos, base));
 		num    = Number(arg);
 		neg    = (num < 0);
 		sizes  = [["B", 0], ["Kb", 128], ["KB", 1024], ["Mb", 131072], ["MB", "1.049e+6"], ["Gb", "1.342e+8"], ["GB", "1.074e+9"], ["Tb", "1.374e+11"], ["TB", "1.1e+12"], ["Pb", "1.407e+14"], ["PB", "1.126e+15"]];
@@ -46,7 +46,7 @@
 					if (bit.test(suffix)) suffix = suffix.toLowerCase();
 					suffix = suffix.slice(0, 1);
 					z      = regex.exec(result);
-					if (z !== null && typeof z[1] !== "undefined" && zero.test(z[1])) result = parseInt(result, base);
+					if (z !== null && z[1] !== undefined && zero.test(z[1])) result = parseInt(result, base);
 				}
 				result += suffix;
 				break;