feat: modernize build target to ES2022 (#94)

Author: ValeraS

jest.config.js

@@ -2,7 +2,7 @@
 module.exports = {
     roots: ['<rootDir>/src'],
     transform: {
-        '^.+\\.ts$': ['ts-jest', {tsconfig: {verbatimModuleSyntax: false}}],
+        '^.+\\.ts$': ['ts-jest'],
     },
     setupFilesAfterEnv: ['<rootDir>/setup-tests.ts'],
 };

package-lock.json

@@ -35,7 +35,6 @@
     "@gravity-ui/prettier-config": "^1.1.0",
     "@gravity-ui/tsconfig": "^1.0.0",
     "@types/jest": "^29.5.12",
-    "@types/lodash": "^4.17.7",
     "eslint": "^9.39.2",
     "globals": "^17.3.0",
     "husky": "^9.1.7",
@@ -47,8 +46,7 @@
     "typescript": "^5.9.3"
   },
   "dependencies": {
-    "dayjs": "1.11.10",
-    "lodash": "^4.17.0"
+    "dayjs": "1.11.10"
   },
   "nano-staged": {
     "*.{js,ts}": [

package.json

@@ -1,5 +1,3 @@
-import cloneDeep from 'lodash/cloneDeep';
-
 import {isLikeRelative, parse} from '../datemath';
 import dayjs from '../dayjs';
 import {normalizeTimeZone} from '../timeZone';
@@ -52,7 +50,7 @@ class Settings implements PublicSettings {
             throw new Error('There is something really wrong happening. Locale data is absent.');
         }
 
-        return cloneDeep(localeObject) as Locale;
+        return structuredClone(localeObject) as Locale;
     }
 
     setLocale(locale: string) {

src/settings/settings.ts

@@ -12,7 +12,6 @@ export const guessUserTimeZone = () => Intl.DateTimeFormat().resolvedOptions().t
  * Returns all time zones.
  */
 // remove when Intl definition is extended
-// @ts-expect-error https://github.com/microsoft/TypeScript/issues/49231
 export const getTimeZonesList = (): string[] => Intl.supportedValuesOf?.('timeZone') || [];
 
 const validTimeZones: Record<TimeZone, boolean> = {};

src/timeZone/timeZone.ts

@@ -12,14 +12,11 @@ export function getDateTimeFormat(locale: string, options: Intl.DateTimeFormatOp
     return dateTimeFormat;
 }
 
-// @ts-expect-error
 const listFormatCache = new Map<string, Intl.ListFormat>();
-// @ts-expect-error
 export function getListFormat(locale: string, options: Intl.ListFormatOptions = {}) {
     const key = JSON.stringify([locale, options]);
     let listFormat = listFormatCache.get(key);
     if (!listFormat) {
-        // @ts-expect-error
         listFormat = new Intl.ListFormat(locale, options);
         listFormatCache.set(key, listFormat);
     }

src/utils/locale.ts

@@ -2,11 +2,10 @@
   "extends": "@gravity-ui/tsconfig/tsconfig",
   "compilerOptions": {
     "noEmit": true,
-    "target": "es5",
+    "target": "es2022",
     "allowJs": false,
-    "module": "ESNext",
-    "moduleResolution": "Node10",
-    "verbatimModuleSyntax": true,
+    "module": "node16",
+    "moduleResolution": "node16",
     "noFallthroughCasesInSwitch": false
   },
   "include": ["**/*"],

tsconfig.json

@@ -3,10 +3,7 @@
   "compilerOptions": {
     "noEmit": false,
     "declaration": true,
-    "outDir": "build",
-    "verbatimModuleSyntax": false,
-    "module": "NodeNext",
-    "moduleResolution": "NodeNext"
+    "outDir": "build"
   },
   "include": ["src"],
   "exclude": ["**/*.test.ts", "**/__tests__/**/*"]