breaking: ESM only 🎉

.github/SPONSORS.yml

@@ -0,0 +1,12 @@
+# These are supported funding model platforms
+
+github: mesqueeb
+patreon: # Replace with a single Patreon username
+open_collective: # Replace with a single Open Collective username
+ko_fi: # Replace with a single Ko-fi username
+tidelift: # Replace with a single Tidelift platform-name/package-name e.g., npm/babel
+community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
+liberapay: # Replace with a single Liberapay username
+issuehunt: # Replace with a single IssueHunt username
+otechie: # Replace with a single Otechie username
+custom: # Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2']

.github/workflows/test.yml

@@ -0,0 +1,37 @@
+name: Test
+on:
+  push:
+    branches: main
+    paths:
+      - src/**
+      - test/**
+      - '*.js'
+      - '*.ts'
+      - '*.json'
+      - .github/workflows/test.yml
+  pull_request:
+    branches: main
+    paths:
+      - src/**
+      - test/**
+      - '*.js'
+      - '*.ts'
+      - '*.json'
+      - .github/workflows/test.yml
+concurrency:
+  group: test-${{ github.ref }}
+  cancel-in-progress: true
+jobs:
+  test:
+    strategy:
+      matrix:
+        node-version: ['18', '20']
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: ${{ matrix.node-version }}
+          cache: npm
+      - run: npm ci
+      - run: npm test

.prettierrc.js

@@ -0,0 +1,3 @@
+import prettier from "@cycraft/eslint/prettier"
+
+export default prettier

dist/index.d.ts

@@ -1,4 +1,4 @@
-type Options = {
+export type Options = {
     props?: (string | symbol)[];
     nonenumerable?: boolean;
 };
@@ -9,6 +9,4 @@ type Options = {
  * @param [options = {}] Options can be `props` or `nonenumerable`
  * @returns the target with replaced values
  */
-declare function copy<T>(target: T, options?: Options): T;
-
-export { Options, copy };
+export declare function copy<T>(target: T, options?: Options): T;

dist/index.js

@@ -1,36 +1,42 @@
 import { isArray, isPlainObject } from 'is-what';
-
 function assignProp(carry, key, newVal, originalObject, includeNonenumerable) {
-  const propType = {}.propertyIsEnumerable.call(originalObject, key) ? "enumerable" : "nonenumerable";
-  if (propType === "enumerable")
-    carry[key] = newVal;
-  if (includeNonenumerable && propType === "nonenumerable") {
-    Object.defineProperty(carry, key, {
-      value: newVal,
-      enumerable: false,
-      writable: true,
-      configurable: true
-    });
-  }
+    const propType = {}.propertyIsEnumerable.call(originalObject, key)
+        ? 'enumerable'
+        : 'nonenumerable';
+    if (propType === 'enumerable')
+        carry[key] = newVal;
+    if (includeNonenumerable && propType === 'nonenumerable') {
+        Object.defineProperty(carry, key, {
+            value: newVal,
+            enumerable: false,
+            writable: true,
+            configurable: true,
+        });
+    }
 }
-function copy(target, options = {}) {
-  if (isArray(target)) {
-    return target.map((item) => copy(item, options));
-  }
-  if (!isPlainObject(target)) {
-    return target;
-  }
-  const props = Object.getOwnPropertyNames(target);
-  const symbols = Object.getOwnPropertySymbols(target);
-  return [...props, ...symbols].reduce((carry, key) => {
-    if (isArray(options.props) && !options.props.includes(key)) {
-      return carry;
+/**
+ * Copy (clone) an object and all its props recursively to get rid of any prop referenced of the original object. Arrays are also cloned, however objects inside arrays are still linked.
+ *
+ * @param target Target can be anything
+ * @param [options = {}] Options can be `props` or `nonenumerable`
+ * @returns the target with replaced values
+ */
+export function copy(target, options = {}) {
+    if (isArray(target)) {
+        return target.map((item) => copy(item, options));
+    }
+    if (!isPlainObject(target)) {
+        return target;
     }
-    const val = target[key];
-    const newVal = copy(val, options);
-    assignProp(carry, key, newVal, target, options.nonenumerable);
-    return carry;
-  }, {});
+    const props = Object.getOwnPropertyNames(target);
+    const symbols = Object.getOwnPropertySymbols(target);
+    return [...props, ...symbols].reduce((carry, key) => {
+        if (isArray(options.props) && !options.props.includes(key)) {
+            return carry;
+        }
+        const val = target[key];
+        const newVal = copy(val, options);
+        assignProp(carry, key, newVal, target, options.nonenumerable);
+        return carry;
+    }, {});
 }
-
-export { copy };

eslint.config.js

@@ -0,0 +1,10 @@
+import config from '@cycraft/eslint/config'
+
+export default [
+  ...config,
+  {
+    rules: {
+      '@typescript-eslint/no-explicit-any': 'warn',
+    },
+  },
+]