Require Node.js 20

sindresorhus · sindresorhus · commit 08313224f1ea · 2025-09-16T05:48:26.000+07:00
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
@@ -10,10 +10,11 @@ jobs:
       fail-fast: false
       matrix:
         node-version:
-          - 16
+          - 24
+          - 20
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-node@v4
+      - uses: actions/checkout@v5
+      - uses: actions/setup-node@v5
         with:
           node-version: ${{ matrix.node-version }}
       - run: npm install
diff --git a/index.d.ts b/index.d.ts
@@ -48,7 +48,7 @@ type DeepMapper<
 	mapperOptions?: MapperOptions,
 ] | typeof mapObjectSkip;
 
-export interface Options {
+export type Options = {
 	/**
 	Recurse nested objects and objects in arrays.
 
@@ -64,17 +64,17 @@ export interface Options {
 	@default {}
 	*/
 	readonly target?: Record<string, unknown>;
-}
+};
 
-export interface DeepOptions extends Options {
+export type DeepOptions = {
 	readonly deep: true;
-}
+} & Options;
 
-export interface TargetOptions<TargetObjectType extends Record<string, unknown>> extends Options {
+export type TargetOptions<TargetObjectType extends Record<string, unknown>> = {
 	readonly target: TargetObjectType;
-}
+} & Options;
 
-export interface MapperOptions {
+export type MapperOptions = {
 	/**
 	Whether `targetValue` should be recursed.
 
@@ -83,7 +83,7 @@ export interface MapperOptions {
 	@default true
 	*/
 	readonly shouldRecurse?: boolean;
-}
+};
 
 /**
 Map object keys and values into a new object.
@@ -139,22 +139,22 @@ export default function mapObject<
 >(
 	source: SourceObjectType,
 	mapper: Mapper<
-	SourceObjectType,
-	MappedObjectKeyType,
-	MappedObjectValueType
+		SourceObjectType,
+		MappedObjectKeyType,
+		MappedObjectValueType
 	>,
 	options: TargetOptions<TargetObjectType>
-): TargetObjectType & {[K in MappedObjectKeyType]: MappedObjectValueType};
+): TargetObjectType & Record<MappedObjectKeyType, MappedObjectValueType>;
 export default function mapObject<
 	SourceObjectType extends Record<string, unknown>,
 	MappedObjectKeyType extends string,
 	MappedObjectValueType,
 >(
 	source: SourceObjectType,
 	mapper: Mapper<
-	SourceObjectType,
-	MappedObjectKeyType,
-	MappedObjectValueType
+		SourceObjectType,
+		MappedObjectKeyType,
+		MappedObjectValueType
 	>,
 	options?: Options
-): {[K in MappedObjectKeyType]: MappedObjectValueType};
+): Record<MappedObjectKeyType, MappedObjectValueType>;
diff --git a/index.test-d.ts b/index.test-d.ts
@@ -1,7 +1,7 @@
 import {expectType, expectAssignable} from 'tsd';
-import mapObject, {Options, mapObjectSkip} from './index.js';
+import mapObject, {type Options, mapObjectSkip} from './index.js';
 
-const options: Options = {}; // eslint-disable-line @typescript-eslint/no-unused-vars
+const options: Options = {};
 
 const newObject = mapObject({foo: 'bar'}, (key, value) => [value, key]);
 expectType<Record<string, 'foo'>>(newObject);
diff --git a/package.json b/package.json
@@ -11,11 +11,13 @@
 		"url": "https://sindresorhus.com"
 	},
 	"type": "module",
-	"exports": "./index.js",
-	"types": "./index.d.ts",
+	"exports": {
+		"types": "./index.d.ts",
+		"default": "./index.js"
+	},
 	"sideEffects": false,
 	"engines": {
-		"node": "^12.20.0 || ^14.13.1 || >=16.0.0"
+		"node": ">=20"
 	},
 	"scripts": {
 		"test": "xo && ava && tsd"
@@ -40,8 +42,8 @@
 		"recursive"
 	],
 	"devDependencies": {
-		"ava": "^3.15.0",
-		"tsd": "^0.18.0",
-		"xo": "^0.45.0"
+		"ava": "^6.4.1",
+		"tsd": "^0.33.0",
+		"xo": "^1.2.2"
 	}
 }
