Fixing the hackish type definition, fixes #105

Author: avoidwork

filesize.d.ts

@@ -1,5 +1,103 @@
-export function filesize(arg: any, descriptor: object): any;
+// Type definitions for filesize 4.2
+// Project: https://github.com/avoidwork/filesize.js, https://filesizejs.com
+// Definitions by: Giedrius Grabauskas <https://github.com/GiedriusGrabauskas>
+//                 Renaud Chaput <https://github.com/renchap>
+//                 Roman Nuritdinov <https://github.com/Ky6uk>
+//                 Sam Hulick <https://github.com/ffxsam>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
 
-export interface filesize {
-    partial: any;
+declare var fileSize: Filesize.Filesize;
+export = fileSize;
+export as namespace filesize;
+
+declare namespace Filesize {
+    interface SiJedecBits {
+        b?: string;
+        Kb?: string;
+        Mb?: string;
+        Gb?: string;
+        Tb?: string;
+        Pb?: string;
+        Eb?: string;
+        Zb?: string;
+        Yb?: string;
+    }
+
+    interface SiJedecBytes {
+        B?: string;
+        KB?: string;
+        MB?: string;
+        GB?: string;
+        TB?: string;
+        PB?: string;
+        EB?: string;
+        ZB?: string;
+        YB?: string;
+    }
+
+    type SiJedec = SiJedecBits & SiJedecBytes & { [name: string]: string };
+
+    interface Options {
+        /**
+         * Number base, default is 2
+         */
+        base?: number;
+        /**
+         * Enables bit sizes, default is false
+         */
+        bits?: boolean;
+        /**
+         * Specifies the SI suffix via exponent, e.g. 2 is MB for bytes, default is -1
+         */
+        exponent?: number;
+        /**
+         * Enables full form of unit of measure, default is false
+         */
+        fullform?: boolean;
+        /**
+         * Array of full form overrides, default is []
+         */
+        fullforms?: string[];
+        /**
+         * BCP 47 language tag to specify a locale, or true to use default locale, default is ""
+         */
+        locale?: string | boolean;
+        /**
+         * ECMA-402 number format option overrides, default is "{}"
+         */
+        localeOptions?: Intl.NumberFormatOptions;
+        /**
+         * Output of function (array, exponent, object, or string), default is string
+         */
+        output?: "array" | "exponent" | "object" | "string";
+        /**
+         * Decimal place, default is 2
+         */
+        round?: number;
+        /**
+         * Decimal separator character, default is `.`
+         */
+        separator?: string;
+        /**
+         * Character between the result and suffix, default is ` `
+         */
+        spacer?: string;
+        /**
+         * Standard unit of measure, can be iec or jedec, default is jedec; can be overruled by base
+         */
+        standard?: "iec" | "jedec";
+        /**
+         * Dictionary of SI/JEDEC symbols to replace for localization, defaults to english if no match is found
+         */
+        symbols?: SiJedec;
+        /**
+         *  Enables unix style human readable output, e.g ls -lh, default is false
+         */
+        unix?: boolean;
+    }
+
+    interface Filesize {
+        (bytes: number, options?: Options): string;
+        partial: (options: Options) => ((bytes: number) => string);
+    }
 }

package-lock.json

@@ -1,7 +1,7 @@
 {
   "name": "filesize",
   "description": "JavaScript library to generate a human readable String describing the file size",
-  "version": "5.0.0",
+  "version": "5.0.1",
   "homepage": "https://filesizejs.com",
   "author": "Jason Mulligan <[email protected]>",
   "repository": {