Fixes #55 by avoiding type mutation, fixing CI tests by removing node…

… 0.8.x

.travis.yml

@@ -1,4 +1,3 @@
 language: node_js
 node_js:
-  - 0.8
   - 0.10

Gruntfile.js

@@ -24,7 +24,8 @@ module.exports = function(grunt) {
 				],
 				dest : "lib/filesize.js"
 			}
-		},exec : {
+		},
+		exec : {
 			closure : {
 				cmd : "cd lib\nclosure-compiler --js <%= pkg.name %>.js --js_output_file <%= pkg.name %>.min.js --create_source_map ./<%= pkg.name %>.map"
 			},

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 2.0.3
+ * @version 2.0.4
  */
 ( function ( global ) {
 "use strict";
@@ -27,6 +27,7 @@ var bit   = /b$/,
 function filesize ( arg, descriptor ) {
 	var result = "",
 	    skip   = false,
+	    val    = 0,
 	    e, base, bits, ceil, neg, num, round, unix, spacer, suffix, z, suffixes;
 
 	if ( isNaN( arg ) ) {
@@ -64,27 +65,27 @@ function filesize ( arg, descriptor ) {
 
 		// Exceeding supported length, time to reduce & multiply
 		if ( e > 8 ) {
-			result = result * ( 1000 * ( e - 8 ) );
-			e      = 8;
+			val = val * ( 1000 * ( e - 8 ) );
+			e   = 8;
 		}
 
 		if ( base === 2 ) {
-			result = num / Math.pow( 2, ( e * 10 ) );
+			val = num / Math.pow( 2, ( e * 10 ) );
 		}
 		else {
-			result = num / Math.pow( 1000, e );
+			val = num / Math.pow( 1000, e );
 		}
 
 		if ( bits ) {
-			result = ( result * 8 );
+			val = ( val * 8 );
 
-			if ( result > ceil ) {
-				result = result / ceil;
+			if ( val > ceil ) {
+				val = val / ceil;
 				e++;
 			}
 		}
 
-		result = result.toFixed( e > 0 ? round : 0 );
+		result = val.toFixed( e > 0 ? round : 0 );
 		suffix = si[bits ? "bits" : "bytes"][e];
 
 		if ( !skip && unix ) {
@@ -103,7 +104,7 @@ function filesize ( arg, descriptor ) {
 			}
 
 			if ( zero.test( z ) ) {
-				result = parseInt( result, radix );
+				result = parseInt( result, radix ).toString();
 			}
 
 			result += spacer + ( suffixes[suffix] || suffix );

lib/filesize.map

@@ -2,7 +2,7 @@
 "version":3,
 "file":"filesize.min.js",
 "lineCount":9,
-"mappings":"A;;;;;;;AAUE,SAAS,CAAEA,CAAF,CAAW,CAgBtBC,QAASA,EAAS,CAAEC,CAAF,CAAOC,CAAP,CAAoB,CAAA,IACjCC,EAAS,EADwB,CAGjCC,CAHiC,CAGxBC,CAHwB,CAGlBC,CAHkB,CAGZC,CAHY,CAGPC,CAHO,CAGFC,CAHE,CAGKC,CAHL,CAGWC,CAHX,CAG8BC,CAEnE,IAAKC,KAAA,CAAOZ,CAAP,CAAL,CACC,KAAUa,MAAJ,CAAW,mBAAX,CAAN,CAGDZ,CAAA,CAAaA,CAAb,EAA2B,EAC3BG,EAAA,CAAmC,CAAA,CAAnC,GAAeH,CAAAG,KACfK,EAAA,CAAmC,CAAA,CAAnC,GAAeR,CAAAQ,KACfK,EAAA,CAAqCC,IAAAA,EAAxB,GAAAd,CAAAa,KAAA,CAAoCb,CAAAa,KAApC,CAA0DL,CAAA,CAAO,CAAP,CAAY,EACnFD,EAAA,CAAqCO,IAAAA,EAAxB,GAAAd,CAAAO,MAAA,CAAoCP,CAAAO,MAApC,CAA0DC,CAAA,CAAO,CAAP,CAAY,CACnFC,EAAA,CAAqCK,IAAAA,EAAxB,GAAAd,CAAAS,OAAA,CAAoCT,CAAAS,OAApC,CAA0DD,CAAA,CAAO,EAAP,CAAY,GACnFE,EAAA,CAAqCI,IAAAA,EAAxB,GAAAd,CAAAU,SAAA,CAAoCV,CAAAU,SAApC,CAA0D,EACvEJ,EAAA,CAAaS,MAAA,CAAQhB,CAAR,CACbM,EAAA,CAAqB,CAArB,CAAeC,CACfF,EAAA,CAAoB,CAAP,CAAAS,CAAA,CAAW,GAAX,CAAkB,IAG1BR,EAAL,GACCC,CADD,CACO,CAACA,CADR,CAKa,EAAb,GAAKA,CAAL,CACME,CAAL,CACCP,CADD,CACU,GADV,EAICe,CACA,CADS,GACT,CAAAf,CAAA,CAAS,GAAT,CAAeQ,CAAf,EAA0BC,CAAA,CAASM,CAAT,CAA1B,EAA8CA,CAA9C,CALD,CADD,EAUCd,CA2BA,CA3BIe,IAAAC,MAAA,CAAYD,IAAAE,IAAA,CAAUb,CAAV,CAAZ,CAA8BW,IAAAE,IAAA,CAAU,GAAV,CAA9B,CA2BJ,CAxBS,CAwBT,CAxBKjB,CAwBL,GAtBCA,CAsBD,CAtBU,CAsBV,EAlBCD,CAkBD,CAnBc,CAAd,GAAKY,CAAL,CACUP,CADV,CACgBW,IAAAG,IAAA,CAAU,CAAV,CAAmB,EAAnB,CAAelB,CAAf,CADhB,CAIUI,CAJV,CAIgBW,IAAAG,IAAA,CAAU,GAAV,CAAgBlB,CAAhB,CAehB,CAZKC,CAYL,GAXCF,CAEA,EAFoB,CAEpB,CAAKA,CAAL,CAAcG,CAAd,GACCH,CACA,EADkBG,CAClB,CAAAF,CAAA,EAFD,CASD,EAHAD,CAGA,CAHSA,CAAAoB,QAAA,CAAoB,CAAJ,CAAAnB,CAAA,CAAQK,CAAR,CAAgB,CAAhC,CAGT;AAFAS,CAEA,CAFSM,CAAA,CAAGnB,CAAA,CAAO,MAAP,CAAgB,OAAnB,CAAA,CAA4BD,CAA5B,CAET,CAAcM,CAAd,EACML,CAkBL,EAlBaoB,CAAAC,KAAA,CAAUR,CAAV,CAkBb,GAjBCA,CAiBD,CAjBUA,CAAAS,YAAA,EAiBV,EAdAT,CAcA,CAdSA,CAAAU,OAAA,CAAe,CAAf,CAcT,CAbAC,CAaA,CAbS1B,CAAA2B,QAAA,CAAgBC,CAAhB,CAAsB,EAAtB,CAaT,CAXgB,GAAhB,GAAKb,CAAL,CACCA,CADD,CACU,EADV,CAGWb,CAHX,EAG8B,GAH9B,GAGmBa,CAHnB,GAICA,CAJD,CAIU,GAJV,CAWA,CAJKc,CAAAN,KAAA,CAAWG,CAAX,CAIL,GAHC1B,CAGD,CAHU8B,QAAA,CAAU9B,CAAV,CAAkB+B,CAAlB,CAGV,EAAA/B,CAAA,EAAUQ,CAAV,EAAqBC,CAAA,CAASM,CAAT,CAArB,EAAyCA,CAAzC,CAnBD,EAqBWR,CArBX,GAsBCP,CAtBD,EAsBWQ,CAtBX,EAsBsBC,CAAA,CAASM,CAAT,CAtBtB,EAsB0CA,CAtB1C,EArCD,CAgEKX,EAAL,GACCJ,CADD,CACU,GADV,CACgBA,CADhB,CAIA,OAAOA,EA9F8B,CAhBhB,IAGlBsB,EAAQ,IAHU,CAIlBS,EAAQ,EAJU,CAKlBH,EAAQ,MALU,CAMlBC,EAAQ,KANU,CAsHlBR,EAAK,MACA,2BAAA,MAAA,CAAA,GAAA,CADA,OAEA,2BAAA,MAAA,CAAA,GAAA,CAFA,CAMe,YAAxB,GAAK,MAAOW,QAAZ,CACCC,MAAAD,QADD,CACkBnC,CADlB,CAG4B,UAAvB,GAAK,MAAOqC,OAAZ,CACJA,MAAA,CAAQ,QAAS,EAAG,CACnB,MAAOrC,EADY,CAApB,CADI,CAMJD,CAAAC,SANI,CAMcA,CArIG,CAApB,CAAA,CAwIG,IAxIH;",
+"mappings":"A;;;;;;;AAUE,SAAS,CAAEA,CAAF,CAAW,CAgBtBC,QAASA,EAAS,CAAEC,CAAF,CAAOC,CAAP,CAAoB,CAAA,IACjCC,EAAS,EADwB,CAGjCC,EAAS,CAHwB,CAIjCC,CAJiC,CAIxBC,CAJwB,CAIZC,CAJY,CAIPC,CAJO,CAIFC,CAJE,CAIKC,CAJL,CAIWC,CAJX,CAI8BC,CAEnE,IAAKC,KAAA,CAAOZ,CAAP,CAAL,CACC,KAAUa,MAAJ,CAAW,mBAAX,CAAN,CAGDZ,CAAA,CAAaA,CAAb,EAA2B,EAC3BI,EAAA,CAAmC,CAAA,CAAnC,GAAeJ,CAAAI,KACfI,EAAA,CAAmC,CAAA,CAAnC,GAAeR,CAAAQ,KACfK,EAAA,CAAqCC,IAAAA,EAAxB,GAAAd,CAAAa,KAAA,CAAoCb,CAAAa,KAApC,CAA0DL,CAAA,CAAO,CAAP,CAAY,EACnFD,EAAA,CAAqCO,IAAAA,EAAxB,GAAAd,CAAAO,MAAA,CAAoCP,CAAAO,MAApC,CAA0DC,CAAA,CAAO,CAAP,CAAY,CACnFC,EAAA,CAAqCK,IAAAA,EAAxB,GAAAd,CAAAS,OAAA,CAAoCT,CAAAS,OAApC,CAA0DD,CAAA,CAAO,EAAP,CAAY,GACnFE,EAAA,CAAqCI,IAAAA,EAAxB,GAAAd,CAAAU,SAAA,CAAoCV,CAAAU,SAApC,CAA0D,EACvEJ,EAAA,CAAaS,MAAA,CAAQhB,CAAR,CACbM,EAAA,CAAqB,CAArB,CAAeC,CACfU,EAAA,CAAoB,CAAP,CAAAH,CAAA,CAAW,GAAX,CAAkB,IAG1BR,EAAL,GACCC,CADD,CACO,CAACA,CADR,CAKa,EAAb,GAAKA,CAAL,CACME,CAAL,CACCP,CADD,CACU,GADV,EAICgB,CACA,CADS,GACT,CAAAhB,CAAA,CAAS,GAAT,CAAeQ,CAAf,EAA0BC,CAAA,CAASO,CAAT,CAA1B,EAA8CA,CAA9C,CALD,CADD,EAUCd,CA2BA,CA3BIe,IAAAC,MAAA,CAAYD,IAAAE,IAAA,CAAUd,CAAV,CAAZ,CAA8BY,IAAAE,IAAA,CAAU,GAAV,CAA9B,CA2BJ,CAxBS,CAwBT,CAxBKjB,CAwBL,GAtBCA,CAsBD,CAtBO,CAsBP,EAlBCD,CAkBD,CAnBc,CAAd,GAAKW,CAAL,CACOP,CADP,CACaY,IAAAG,IAAA,CAAU,CAAV,CAAmB,EAAnB,CAAelB,CAAf,CADb,CAIOG,CAJP,CAIaY,IAAAG,IAAA,CAAU,GAAV,CAAgBlB,CAAhB,CAeb,CAZKC,CAYL,GAXCF,CAEA,EAFc,CAEd,CAAKA,CAAL,CAAWc,CAAX,GACCd,CACA,EADYc,CACZ,CAAAb,CAAA,EAFD,CASD,EAHAF,CAGA,CAHSC,CAAAoB,QAAA,CAAiB,CAAJ,CAAAnB,CAAA,CAAQI,CAAR;AAAgB,CAA7B,CAGT,CAFAU,CAEA,CAFSM,CAAA,CAAGnB,CAAA,CAAO,MAAP,CAAgB,OAAnB,CAAA,CAA4BD,CAA5B,CAET,CAAcK,CAAd,EACMJ,CAkBL,EAlBaoB,CAAAC,KAAA,CAAUR,CAAV,CAkBb,GAjBCA,CAiBD,CAjBUA,CAAAS,YAAA,EAiBV,EAdAT,CAcA,CAdSA,CAAAU,OAAA,CAAe,CAAf,CAcT,CAbAC,CAaA,CAbS3B,CAAA4B,QAAA,CAAgBC,CAAhB,CAAsB,EAAtB,CAaT,CAXgB,GAAhB,GAAKb,CAAL,CACCA,CADD,CACU,EADV,CAGWb,CAHX,EAG8B,GAH9B,GAGmBa,CAHnB,GAICA,CAJD,CAIU,GAJV,CAWA,CAJKc,CAAAN,KAAA,CAAWG,CAAX,CAIL,GAHC3B,CAGD,CAHU+B,QAAA,CAAU/B,CAAV,CAAkBgC,CAAlB,CAAAC,SAAA,EAGV,EAAAjC,CAAA,EAAUQ,CAAV,EAAqBC,CAAA,CAASO,CAAT,CAArB,EAAyCA,CAAzC,CAnBD,EAqBWT,CArBX,GAsBCP,CAtBD,EAsBWQ,CAtBX,EAsBsBC,CAAA,CAASO,CAAT,CAtBtB,EAsB0CA,CAtB1C,EArCD,CAgEKZ,EAAL,GACCJ,CADD,CACU,GADV,CACgBA,CADhB,CAIA,OAAOA,EA/F8B,CAhBhB,IAGlBuB,EAAQ,IAHU,CAIlBS,EAAQ,EAJU,CAKlBH,EAAQ,MALU,CAMlBC,EAAQ,KANU,CAuHlBR,EAAK,MACA,2BAAA,MAAA,CAAA,GAAA,CADA,OAEA,2BAAA,MAAA,CAAA,GAAA,CAFA,CAMe,YAAxB,GAAK,MAAOY,QAAZ,CACCC,MAAAD,QADD,CACkBrC,CADlB,CAG4B,UAAvB,GAAK,MAAOuC,OAAZ,CACJA,MAAA,CAAQ,QAAS,EAAG,CACnB,MAAOvC,EADY,CAApB,CADI,CAMJD,CAAAC,SANI,CAMcA,CAtIG,CAApB,CAAA,CAyIG,IAzIH;",
 "sources":["filesize.js"],
-"names":["global","filesize","arg","descriptor","result","e","bits","ceil","neg","num","round","unix","spacer","suffixes","isNaN","Error","base","undefined","Number","suffix","Math","floor","log","pow","toFixed","si","bit","test","toLowerCase","charAt","z","replace","left","zero","parseInt","radix","exports","module","define"]
+"names":["global","filesize","arg","descriptor","result","val","e","bits","neg","num","round","unix","spacer","suffixes","isNaN","Error","base","undefined","Number","ceil","suffix","Math","floor","log","pow","toFixed","si","bit","test","toLowerCase","charAt","z","replace","left","zero","parseInt","radix","toString","exports","module","define"]
 }

package.json

@@ -1,7 +1,7 @@
 {
   "name": "filesize",
   "description": "JavaScript library to generate a human readable String describing the file size",
-  "version": "2.0.3",
+  "version": "2.0.4",
   "homepage": "http://filesizejs.com",
   "author": {
     "name": "Jason Mulligan",

src/filesize.js

@@ -9,6 +9,7 @@
 function filesize ( arg, descriptor ) {
 	var result = "",
 	    skip   = false,
+	    val    = 0,
 	    e, base, bits, ceil, neg, num, round, unix, spacer, suffix, z, suffixes;
 
 	if ( isNaN( arg ) ) {
@@ -46,27 +47,27 @@ function filesize ( arg, descriptor ) {
 
 		// Exceeding supported length, time to reduce & multiply
 		if ( e > 8 ) {
-			result = result * ( 1000 * ( e - 8 ) );
-			e      = 8;
+			val = val * ( 1000 * ( e - 8 ) );
+			e   = 8;
 		}
 
 		if ( base === 2 ) {
-			result = num / Math.pow( 2, ( e * 10 ) );
+			val = num / Math.pow( 2, ( e * 10 ) );
 		}
 		else {
-			result = num / Math.pow( 1000, e );
+			val = num / Math.pow( 1000, e );
 		}
 
 		if ( bits ) {
-			result = ( result * 8 );
+			val = ( val * 8 );
 
-			if ( result > ceil ) {
-				result = result / ceil;
+			if ( val > ceil ) {
+				val = val / ceil;
 				e++;
 			}
 		}
 
-		result = result.toFixed( e > 0 ? round : 0 );
+		result = val.toFixed( e > 0 ? round : 0 );
 		suffix = si[bits ? "bits" : "bytes"][e];
 
 		if ( !skip && unix ) {
@@ -85,7 +86,7 @@ function filesize ( arg, descriptor ) {
 			}
 
 			if ( zero.test( z ) ) {
-				result = parseInt( result, radix );
+				result = parseInt( result, radix ).toString();
 			}
 
 			result += spacer + ( suffixes[suffix] || suffix );