feat: support for es2022 (#20)

Author: chenjiahan

README.md

@@ -36,13 +36,14 @@ console.log(esVersion); // 2017
 
 ```ts
 // Only supports ES5 ~ ES2021
-type ESVersion = 5 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021;
+type ESVersion = 5 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022;
 
 function browserslistToESVersion(browsers: string[]): ESVersion;
 ```
 
 ## Data source
 
+- https://caniuse.com/?search=es2022
 - https://caniuse.com/?search=es2021
 - https://caniuse.com/?search=es2020
 - https://caniuse.com/?search=es2019

src/index.ts

@@ -1,15 +1,24 @@
 import browserslist from 'browserslist';
 
-export type ESVersion = 5 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021;
+export type ESVersion =
+	| 5
+	| 2015
+	| 2016
+	| 2017
+	| 2018
+	| 2019
+	| 2020
+	| 2021
+	| 2022;
 
-// The minimal version for [es2015, es2016, es2017, es2018, es2019, es2020, es2021]
+// The minimal version for [es2015, es2016, es2017, es2018, es2019, es2020, es2021, es2022]
 const ES_VERSIONS_MAP: Record<string, number[]> = {
-	chrome: [51, 52, 57, 64, 73, 80, 85],
-	edge: [15, 15, 15, 79, 79, 80, 85],
-	safari: [10, 10.3, 11, 16.4, 17, 17, 17],
-	firefox: [54, 54, 54, 78, 78, 80, 80],
-	opera: [38, 39, 44, 51, 60, 67, 71],
-	samsung: [5, 6.2, 6.2, 8.2, 11.1, 13, 14],
+	chrome: [51, 52, 57, 64, 73, 80, 85, 94],
+	edge: [15, 15, 15, 79, 79, 80, 85, 94],
+	safari: [10, 10.3, 11, 16.4, 17, 17, 17, 17],
+	firefox: [54, 54, 54, 78, 78, 80, 80, 93],
+	opera: [38, 39, 44, 51, 60, 67, 71, 80],
+	samsung: [5, 6.2, 6.2, 8.2, 11.1, 13, 14, 17],
 };
 
 const aliases: Record<string, string> = {
@@ -27,7 +36,7 @@ export function browserslistToESVersion(browsers: string[]): ESVersion {
 		ignoreUnknownVersions: true,
 	});
 
-	let esVersion: ESVersion = 2021;
+	let esVersion: ESVersion = 2022;
 
 	for (const item of projectBrowsers) {
 		const pairs = item.split(' ');
@@ -71,6 +80,8 @@ export function browserslistToESVersion(browsers: string[]): ESVersion {
 			esVersion = Math.min(2019, esVersion) as ESVersion;
 		} else if (version < versions[6]) {
 			esVersion = Math.min(2020, esVersion) as ESVersion;
+		} else if (version < versions[7]) {
+			esVersion = Math.min(2021, esVersion) as ESVersion;
 		}
 	}
 

test/index.test.js

@@ -11,12 +11,14 @@ test('should get ECMA version correctly', () => {
 	assert.strictEqual(browserslistToESVersion(['Edge >= 79']), 2019);
 	assert.strictEqual(browserslistToESVersion(['Edge >= 80']), 2020);
 	assert.strictEqual(browserslistToESVersion(['Edge >= 85']), 2021);
+	assert.strictEqual(browserslistToESVersion(['Edge >= 94']), 2022);
 
 	// Firefox
 	assert.strictEqual(browserslistToESVersion(['firefox >= 50']), 5);
 	assert.strictEqual(browserslistToESVersion(['firefox >= 54']), 2017);
 	assert.strictEqual(browserslistToESVersion(['firefox >= 78']), 2019);
 	assert.strictEqual(browserslistToESVersion(['firefox >= 85']), 2021);
+	assert.strictEqual(browserslistToESVersion(['firefox >= 93']), 2022);
 
 	// Chrome
 	assert.strictEqual(browserslistToESVersion(['Chrome >= 33']), 5);
@@ -26,6 +28,7 @@ test('should get ECMA version correctly', () => {
 	assert.strictEqual(browserslistToESVersion(['Chrome >= 73']), 2019);
 	assert.strictEqual(browserslistToESVersion(['Chrome >= 80']), 2020);
 	assert.strictEqual(browserslistToESVersion(['Chrome >= 85']), 2021);
+	assert.strictEqual(browserslistToESVersion(['Chrome >= 94']), 2022);
 
 	// Opera
 	assert.strictEqual(browserslistToESVersion(['opera >= 30']), 5);
@@ -36,6 +39,7 @@ test('should get ECMA version correctly', () => {
 	assert.strictEqual(browserslistToESVersion(['opera >= 60']), 2019);
 	assert.strictEqual(browserslistToESVersion(['opera >= 67']), 2020);
 	assert.strictEqual(browserslistToESVersion(['opera >= 71']), 2021);
+	assert.strictEqual(browserslistToESVersion(['opera >= 80']), 2022);
 
 	// Samsung
 	assert.strictEqual(browserslistToESVersion(['samsung >= 4']), 5);
@@ -45,11 +49,14 @@ test('should get ECMA version correctly', () => {
 	assert.strictEqual(browserslistToESVersion(['samsung >= 11.1']), 2019);
 	assert.strictEqual(browserslistToESVersion(['samsung >= 13']), 2020);
 	assert.strictEqual(browserslistToESVersion(['samsung >= 14']), 2021);
+	assert.strictEqual(browserslistToESVersion(['samsung >= 17']), 2022);
 
 	// Safari
 	assert.strictEqual(browserslistToESVersion(['safari >= 10']), 2015);
 	assert.strictEqual(browserslistToESVersion(['safari >= 10.3']), 2017);
 	assert.strictEqual(browserslistToESVersion(['safari >= 11']), 2017);
+	assert.strictEqual(browserslistToESVersion(['safari >= 16.4']), 2018);
+	assert.strictEqual(browserslistToESVersion(['safari >= 17']), 2022);
 
 	// iOS
 	assert.strictEqual(browserslistToESVersion(['iOS 8']), 5);
@@ -88,7 +95,7 @@ test('should get ECMA version correctly', () => {
 			'last 1 firefox version',
 			'last 1 safari version',
 		]),
-		2021,
+		2022,
 	);
 	assert.strictEqual(
 		browserslistToESVersion([
@@ -111,7 +118,7 @@ test('should get ECMA version correctly', () => {
 	assert.strictEqual(browserslistToESVersion(['ios_saf 11']), 2017);
 
 	// https://github.com/browserslist/browserslist/issues/682
-	assert.strictEqual(browserslistToESVersion(['and_ff >= 78']), 2021);
-	assert.strictEqual(browserslistToESVersion(['and_chr >= 53']), 2021);
-	assert.strictEqual(browserslistToESVersion(['ChromeAndroid >= 53']), 2021);
+	assert.strictEqual(browserslistToESVersion(['and_ff >= 78']), 2022);
+	assert.strictEqual(browserslistToESVersion(['and_chr >= 53']), 2022);
+	assert.strictEqual(browserslistToESVersion(['ChromeAndroid >= 53']), 2022);
 });