Issue filipdanic#3 Add CommonJS and Typescript compatibility

Based on guide @ https://redfin.engineering/node-modules-at-war-why-commonjs-and-es-modules-cant-get-along-9617135eeca1

esm/esm.js

@@ -0,0 +1,36 @@
+/**
+ * @fileoverview
+ *
+ * This package contains an array of timezones based on conventional options found online.
+ * It does not follow any complete data set, but all names are according to the tz format:
+ * https://en.wikipedia.org/wiki/List_of_tz_database_time_zones.
+ *
+ * More specifically, the fields in the array are:
+ * – offset, a string from '-11:00' to '+14:00' representing the UTC offset
+ * - label, a readable label that contains the offset and a longer, descriptive name of the timezone
+ * - tzCode, the value from the tz standard
+ *
+ * Install:
+ *  `npm install compact-timezone-list --save`
+ *   # or
+ *  `yarn add compact-timezone-list`
+ *
+ *
+ *  Example:
+ *  import timezones from 'compact-timezone-list';
+ *  // or
+ *  import { minimalTimezoneSet } from 'compact-timezone-list';
+ *
+ *  Details:
+ *  - The default export provides a long list of options, with multiple
+ *  suggestions for each UTC offset.
+ *  – The `minimalTimezoneSet` export provides one option per offset type, with
+ *  a favourite chosen to represent each offset. This is mostly targeted to small,
+ *  western-focused apps. But, every UTC offset is included.
+ */
+
+import cjsModule from '../index.js';
+
+export default cjsModule.defaultTimezoneSet;
+export var defaultTimezoneSet = cjsModule.defaultTimezoneSet;
+export var minimalTimezoneSet = cjsModule.minimalTimezoneSet;

index.d.ts

@@ -0,0 +1,36 @@
+/**
+ * @fileoverview
+ *
+ * This package contains an array of timezones based on conventional options found online.
+ * It does not follow any complete data set, but all names are according to the tz format:
+ * https://en.wikipedia.org/wiki/List_of_tz_database_time_zones.
+ *
+ * Install:
+ *  `npm install compact-timezone-list --save`
+ *   # or
+ *  `yarn add compact-timezone-list`
+ *
+ *
+ *  Example:
+ *  import { defaultTimezoneSet } from 'compact-timezone-list';
+ *  // or
+ *  import { minimalTimezoneSet } from 'compact-timezone-list';
+ *
+ *  Details:
+ *  - The 'defaultTimezoneSet' export provides a long list of options, with multiple
+ *  suggestions for each UTC offset.
+ *  – The `minimalTimezoneSet` export provides one option per offset type, with
+ *  a favourite chosen to represent each offset. This is mostly targeted to small,
+ *  western-focused apps. But, every UTC offset is included.
+ */
+export interface TimezoneEntry {
+    /** a string from '-11:00' to '+14:00' representing the UTC offset */
+    offset: string;
+    /** a readable label that contains the offset and a longer, descriptive name of the timezone */
+    label: string;
+    /** the value from the tz standard */
+    tzCode: string;
+}
+
+export declare var defaultTimezoneSet: TimezoneEntry[];
+export declare var minimalTimezoneSet: TimezoneEntry[];

index.js

@@ -17,12 +17,12 @@
  *
  *
  *  Example:
- *  import timezones from 'compact-timezone-list';
+ *  const { defaultTimezoneSet } = require('compact-timezone-list');
  *  // or
- *  import { minimalTimezoneSet } from 'compact-timezone-list';
+ *  const { minimalTimezoneSet } = require('compact-timezone-list');
  *
  *  Details:
- *  - The default export provides a long list of options, with multiple
+ *  - The 'defaultTimezoneSet' export provides a long list of options, with multiple
  *  suggestions for each UTC offset.
  *  – The `minimalTimezoneSet` export provides one option per offset type, with
  *  a favourite chosen to represent each offset. This is mostly targeted to small,
@@ -33,7 +33,7 @@
  *
  * @type {Array.<{ offset: string, label: string, tzCode: string }>}
  */
-export default [
+module.exports.defaultTimezoneSet = [
   { offset: '-11:00', label: '(GMT-11:00) Niue', tzCode: 'Pacific/Niue' },
   { offset: '-11:00', label: '(GMT-11:00) Pago Pago', tzCode: 'Pacific/Pago_Pago' },
   { offset: '-10:00', label: '(GMT-10:00) Hawaii Time', tzCode: 'Pacific/Honolulu' },
@@ -290,7 +290,7 @@ export default [
  *
  * @type {Array.<{ offset: string, label: string, tzCode: string }>}
  */
-export var minimalTimezoneSet = [
+module.exports.minimalTimezoneSet = [
   { offset: '-11:00', label: '(GMT-11:00) Pago Pago', tzCode: 'Pacific/Pago_Pago' },
   { offset: '-10:00', label: '(GMT-10:00) Hawaii Time', tzCode: 'Pacific/Honolulu' },
   { offset: '-10:00', label: '(GMT-10:00) Tahiti', tzCode: 'Pacific/Tahiti' },

package.json

@@ -1,8 +1,14 @@
 {
   "name": "compact-timezone-list",
-  "version": "1.0.6",
+  "version": "2.0.0",
   "description": "Array of timezones with their labels, tz code, and UTC/GMT offsets.",
+  "type": "module",
   "main": "index.js",
+  "types": "index.d.ts",
+  "exports": {
+    "require": "./index.js",
+    "import": "./esm/esm.js"
+  },
   "repository": {
     "type": "git",
     "url": "git+https://github.com/filipdanic/compact-timezone-list.git"