Make the package a module type (#313)

package.json

@@ -10,6 +10,11 @@
 		"email": "sindresorhus@gmail.com",
 		"url": "https://sindresorhus.com"
 	},
+	"type": "module",
+	"exports": {
+		"import": "./index.js",
+		"require": "./umd.js"
+	},
 	"engines": {
 		"node": ">=10"
 	},
@@ -48,7 +53,7 @@
 	],
 	"devDependencies": {
 		"abort-controller": "^3.0.0",
-		"ava": "^3.2.0",
+		"ava": "^3.15.0",
 		"body": "^5.1.0",
 		"busboy": "^0.3.1",
 		"create-test-server": "2.1.1",
@@ -69,13 +74,21 @@
 		],
 		"globals": [
 			"globalThis"
-		]
+		],
+		"rules": {
+			"import/no-useless-path-segments": "off",
+			"unicorn/import-index": "off",
+			"import/extensions": "off"
+		}
 	},
 	"ava": {
 		"require": [
 			"esm",
 			"./test/_require"
-		]
+		],
+		"nonSemVerExperiments": {
+			"nextGenConfig": true
+		}
 	},
 	"tsd": {
 		"compilerOptions": {

test/browser.js

@@ -1,10 +1,11 @@
 import util from 'util';
 import body from 'body';
-import {serial as test} from 'ava';
+import ava from 'ava'; // eslint-disable-line ava/use-test
 import createTestServer from 'create-test-server';
 import Busboy from 'busboy';
-import withPage from './helpers/with-page';
+import withPage from './helpers/with-page.js';
 
+const test = ava.serial;
 const pBody = util.promisify(body);
 
 test('prefixUrl option', withPage, async (t, page) => {

test/fetch.js

@@ -1,5 +1,5 @@
 import test from 'ava';
-import ky from '..';
+import ky from '../index.js';
 
 test.serial('relative URLs are passed to fetch unresolved', async t => {
 	const originalFetch = global.fetch;

test/headers.js

@@ -1,7 +1,7 @@
 import createTestServer from 'create-test-server';
 import FormData from 'form-data';
 import test from 'ava';
-import ky from '..';
+import ky from '../index.js';
 
 const echoHeaders = (request, response) => {
 	request.resume();

test/hooks.js

@@ -3,7 +3,7 @@ import test from 'ava';
 import createTestServer from 'create-test-server';
 import body from 'body';
 import delay from 'delay';
-import ky from '..';
+import ky from '../index.js';
 
 const pBody = util.promisify(body);
 

test/http-error.js

@@ -1,6 +1,6 @@
 import test from 'ava';
 import {Response} from 'node-fetch';
-import ky from '..';
+import ky from '../index.js';
 
 function createFakeResponse({status, statusText}) {
 	// Start with a realistic fetch Response.

test/main.js

@@ -3,7 +3,7 @@ import test from 'ava';
 import createTestServer from 'create-test-server';
 import body from 'body';
 import delay from 'delay';
-import ky from '..';
+import ky from '../index.js';
 
 const pBody = util.promisify(body);
 const fixture = 'fixture';

test/methods.js

@@ -1,6 +1,6 @@
 import test from 'ava';
 import createTestServer from 'create-test-server';
-import ky from '..';
+import ky from '../index.js';
 
 test('common method is normalized', async t => {
 	const server = await createTestServer();

test/prefix-url.js

@@ -1,6 +1,6 @@
 import test from 'ava';
 import createTestServer from 'create-test-server';
-import ky from '..';
+import ky from '../index.js';
 
 test('prefixUrl option', async t => {
 	const server = await createTestServer();

test/retry.js

@@ -1,6 +1,6 @@
 import test from 'ava';
 import createTestServer from 'create-test-server';
-import ky from '..';
+import ky from '../index.js';
 
 const fixture = 'fixture';
 const defaultRetryCount = 2;