neolution-ch · manni497 · Mar 6, 2026 · Mar 6, 2026 · Mar 6, 2026 · Mar 6, 2026
@@ -30,6 +30,7 @@ storybook-static
 terraform
 
 .npmrc
+.vs
 
 cypress/screenshots
 cypress/videos
@@ -7,6 +7,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Fixed
+
+- `useConstructor` hook using state instead of ref for React 19 compatibility.
+
 ### Added
 
 - `useConstructor` hook that executes a provided callback only once during the component's lifecycle, similar to a constructor.
@@ -25,7 +25,9 @@ describe("useConstructor", () => {
     cy.get("@initSpy").should("have.been.calledOnce");
 
     // Cause several re-renders
-    cy.contains("Increment").click().click().click();
+    cy.contains("Increment").click();
+    cy.contains("Increment").click();
+    cy.contains("Increment").click();
     cy.get("[data-cy='count']").should("have.text", "3");
 
     cy.get("@initSpy").should("have.been.calledOnce");
@@ -45,7 +47,9 @@ describe("useConstructor", () => {
     };
 
     const Child: React.FC = () => {
-      useConstructor(() => initSpy());
+      useConstructor(() => {
+        initSpy();
+      });
       return <div data-cy="child">Child</div>;
     };
 

@@ -1,4 +1,4 @@
-<!DOCTYPE html>
+<!doctype html>
 <html>
   <head>
     <meta charset="utf-8" />

@@ -0,0 +1,54 @@
+import neolutionEslintConfig from "@neolution-ch/eslint-config-neolution";
+
+export default [
+  {
+    ignores: ["vite.config.ts"],
+  },
+  ...neolutionEslintConfig.configs.flat.getConfig({
+    ...neolutionEslintConfig.configs.flat.defaults["react-library"],
+    cypressRecommended: true,
+  }),
+  {
+    rules: {
+      "no-restricted-imports": [
+        "error",
+        {
+          patterns: [
+            {
+              group: ["src/**"],
+              message: "Use relative import path instead.",
+            },
+            {
+              group: ["**/../src/**"],
+              message: "Do not reach the 'src' folder in a relative path.",
+            },
+          ],
+        },
+      ],
+    },
+  },
+  {
+    files: ["**/cypress/**"],
+    rules: {
+      "@typescript-eslint/no-namespace": [
+        "error",
+        {
+          allowDeclarations: true,
+          allowDefinitionFiles: true,
+        },
+      ],
+    },
+  },
+  {
+    files: ["eslint.config.ts"],
+    rules: {
+      "unicorn/prefer-module": "off",
+    },
+  },
+  {
+    files: ["**/*.cy.tsx"],
+    rules: {
+      "no-restricted-imports": "off",
+    },
+  },
+];
@@ -13,15 +13,12 @@
   "exports": {
     "./package.json": "./package.json",
     ".": {
-      "types": "./dist/index.d.ts",
+      "types": "./dist/src/index.d.ts",
       "import": "./dist/index.modern.js",
       "require": "./dist/index.js"
     }
   },
   "main": "dist/index.js",
-  "umd:main": "dist/index.umd.js",
-  "jsdelivr": "dist/index.umd.js",
-  "unpkg": "dist/index.umd.js",
   "module": "dist/index.modern.js",
   "source": "src/index.ts",
   "jsnext:main": "dist/index.modern.js",
@@ -30,8 +27,8 @@
     "dist"
   ],
   "scripts": {
-    "build": "rollup -c",
-    "lint": "eslint \"**/*.{ts,tsx}\" --cache --max-warnings 0",
+    "build": "rollup -c --configPlugin rollup-plugin-typescript2",
+    "lint": "eslint --cache",
     "prepack": "yarn build",
     "prepare-pr": "yarn prettier . --write && yarn lint && yarn build && yarn test",
     "prettier-check": "prettier --check .",
@@ -46,38 +43,33 @@
   "dependencies": {},
   "devDependencies": {
     "@babel/core": "^7.21.8",
+    "@neolution-ch/eslint-config-neolution": "^2.3.0",
     "@popperjs/core": "^2.11.7",
     "@release-it/keep-a-changelog": "^4.0.0",
     "@rollup/plugin-commonjs": "^24.1.0",
     "@rollup/plugin-node-resolve": "^15.0.2",
     "@rollup/plugin-terser": "^0.4.1",
     "@types/jest": "^29.5.3",
-    "@types/node": "^18.16.3",
-    "@types/react": "^18.3.4",
+    "@types/node": "^20.11.1",
+    "@types/react": "^19.2.14",
+    "@types/react-dom": "^19.2.3",
+    "@types/rollup-plugin-peer-deps-external": "^2.2.6",
     "@types/uuid": "^9.0.7",
-    "@typescript-eslint/eslint-plugin": "^5.59.2",
-    "@typescript-eslint/parser": "^5.59.2",
-    "@vitejs/plugin-react": "^5.0.2",
+    "@typescript-eslint/parser": "^8.56.1",
+    "@vitejs/plugin-react": "^5.1.4",
     "concurrently": "^8.0.1",
     "cross-env": "^7.0.3",
     "cypress": "^15.0.0",
-    "eslint": "^8.45.0",
-    "eslint-config-prettier": "^8.8.0",
-    "eslint-import-resolver-typescript": "^3.5.5",
-    "eslint-plugin-import": "^2.27.5",
-    "eslint-plugin-jest": "^27.2.3",
-    "eslint-plugin-jsdoc": "^46.4.4",
-    "eslint-plugin-react": "^7.35.0",
-    "eslint-plugin-react-hooks": "^4.6.2",
-    "eslint-plugin-storybook": "^0.6.12",
+    "eslint": "^9.25.1",
     "jest": "^29.6.1",
     "jest-localstorage-mock": "^2.4.26",
+    "jiti": "^2.6.1",
     "nodemon": "^2.0.22",
-    "prettier": "^2.8.8",
-    "react": "^18.3.1",
-    "react-dom": "^18.3.1",
+    "prettier": "^3.8.1",
+    "react": "^19.2.4",
+    "react-dom": "^19.2.4",
     "release-it": "^16.1.2",
-    "rollup": "^3.21.4",
+    "rollup": "^4.32.0",
     "rollup-plugin-peer-deps-external": "^2.2.4",
     "rollup-plugin-typescript2": "^0.34.1",
     "shx": "^0.3.4",
@@ -89,7 +81,8 @@
     "yalc": "^1.0.0-pre.53"
   },
   "peerDependencies": {
-    "react": "^18.0.0"
+    "react": "^18.2.0 || ^19.2.0",
+    "react-dom": "^18.2.0 || ^19.2.0"
   },
   "engines": {
     "node": ">=20"