Support for ECMAScript Modules

.eslintrc.js

@@ -19,7 +19,7 @@ module.exports = {
     'consistent-return': 'off',
     'filenames/match-exported': 'error',
     'import/default': 'error',
-    'import/extensions': ['warn', 'never'],
+    'import/extensions': ['warn', 'always'],
     'import/first': 'off',
     'import/named': 'error',
     'import/newline-after-import': 'warn',

.mocharc.yml

@@ -1,7 +1,4 @@
 recursive: true
 reporter: spec
-require:
-- ts-node/register
-- source-map-support/register
 inline-diffs: false
-spec: test/**/*.ts
+spec: dist/esm/test/**/*.js

.travis.yml

@@ -4,15 +4,7 @@ arch:
   - ppc64le
 language: node_js
 node_js:
-  - 16
-  - 15
-  - 14
-  - 13
-  - 12
+  - 18
 script: "./coverage.sh"
 jobs:
-  allow_failures:
-    # this specific combination is broken within Travis at present
-    - arch: ppc64le
-      node_js: 16
   fast_finish: true

README.md

@@ -36,11 +36,11 @@ Documentation is available at [ip-address.js.org](http://ip-address.js.org/).
 ### Examples
 
 ```js
-var Address6 = require('ip-address').Address6;
+import { Address6 } from 'ip-address';
 
-var address = new Address6('2001:0:ce49:7601:e866:efff:62c3:fffe');
+const address = new Address6('2001:0:ce49:7601:e866:efff:62c3:fffe');
 
-var teredo = address.inspectTeredo();
+const teredo = address.inspectTeredo();
 
 teredo.client4;    // '157.60.0.1'
 ```

ip-address.ts

@@ -1,11 +1,11 @@
-import { Address4 } from './lib/ipv4';
-import { Address6 } from './lib/ipv6';
-import { AddressError } from './lib/address-error';
+import { Address4 } from './lib/ipv4.js';
+import { Address6 } from './lib/ipv6.js';
+import { AddressError } from './lib/address-error.js';
 
 export { Address4 };
 export { Address6 };
 export { AddressError };
 
-import * as helpers from './lib/v6/helpers';
+import * as helpers from './lib/v6/helpers.js';
 
 export const v6 = { helpers };

lib/common.ts

@@ -1,5 +1,5 @@
-import { Address4 } from './ipv4';
-import { Address6 } from './ipv6';
+import { Address4 } from './ipv4.js';
+import { Address6 } from './ipv6.js';
 
 export interface ReverseFormOptions {
   omitSuffix?: boolean;

lib/ipv4.ts

@@ -1,8 +1,8 @@
 /* eslint-disable no-param-reassign */
 
-import * as common from './common';
-import * as constants from './v4/constants';
-import { AddressError } from './address-error';
+import * as common from './common.js';
+import * as constants from './v4/constants.js';
+import { AddressError } from './address-error.js';
 import { BigInteger } from 'jsbn';
 import { sprintf } from 'sprintf-js';
 

lib/ipv6.ts

@@ -1,17 +1,17 @@
 /* eslint-disable prefer-destructuring */
 /* eslint-disable no-param-reassign */
 
-import * as common from './common';
-import * as constants4 from './v4/constants';
-import * as constants6 from './v6/constants';
-import * as helpers from './v6/helpers';
-import { Address4 } from './ipv4';
+import * as common from './common.js';
+import * as constants4 from './v4/constants.js';
+import * as constants6 from './v6/constants.js';
+import * as helpers from './v6/helpers.js';
+import { Address4 } from './ipv4.js';
 import {
   ADDRESS_BOUNDARY,
   possibleElisions,
   simpleRegularExpression,
-} from './v6/regular-expressions';
-import { AddressError } from './address-error';
+} from './v6/regular-expressions.js';
+import { AddressError } from './address-error.js';
 import { BigInteger } from 'jsbn';
 import { sprintf } from 'sprintf-js';
 
@@ -66,7 +66,6 @@ function unsignByte(b: number) {
   return b & 0xff;
 }
 
-
 interface SixToFourProperties {
   prefix: string;
   gateway: string;

lib/v6/regular-expressions.ts

@@ -1,4 +1,4 @@
-import * as v6 from './constants';
+import * as v6 from './constants.js';
 import { sprintf } from 'sprintf-js';
 
 export function groupPossibilities(possibilities: string[]): string {