fix: wrong month array at the end of the month (#66)

Co-authored-by: F <f@MacBook-Pro-F.local>

Author: Feshchenko

.eslintignore

@@ -20,7 +20,7 @@ Here is a quick guide to doing code contributions to the library.
 
 5. Run all packages in dev mode:
 
-   > pnpm i
+   > pnpm dev
 
 6. If you've added a code that should be tested, ensure the test suite still passes.
 

.eslintrc

@@ -0,0 +1,67 @@
+import { fixupConfigRules, fixupPluginRules } from "@eslint/compat";
+import typescriptEslint from "@typescript-eslint/eslint-plugin";
+import reactHooks from "eslint-plugin-react-hooks";
+import simpleImportSort from "eslint-plugin-simple-import-sort";
+import prettier from "eslint-plugin-prettier";
+import tsParser from "@typescript-eslint/parser";
+import path from "node:path";
+import { fileURLToPath } from "node:url";
+import js from "@eslint/js";
+import { FlatCompat } from "@eslint/eslintrc";
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = path.dirname(__filename);
+const compat = new FlatCompat({
+    baseDirectory: __dirname,
+    recommendedConfig: js.configs.recommended,
+    allConfig: js.configs.all
+});
+
+export default [{
+    ignores: ["node_modules", "dist", "rollup"],
+}, ...fixupConfigRules(compat.extends(
+    "plugin:playwright/recommended",
+    "plugin:react/recommended",
+    "plugin:@typescript-eslint/recommended",
+    "plugin:react-hooks/recommended",
+    "prettier",
+)), {
+    plugins: {
+        "@typescript-eslint": fixupPluginRules(typescriptEslint),
+        "react-hooks": fixupPluginRules(reactHooks),
+        "simple-import-sort": simpleImportSort,
+        prettier,
+    },
+
+    languageOptions: {
+        parser: tsParser,
+        ecmaVersion: 2020,
+        sourceType: "module",
+
+        parserOptions: {
+            ecmaFeatures: {
+                jsx: true,
+            },
+        },
+    },
+
+    settings: {
+        react: {
+            pragma: "React",
+            version: "detect",
+        },
+    },
+
+    rules: {
+        "prettier/prettier": "error",
+        "simple-import-sort/imports": "error",
+        "simple-import-sort/exports": "error",
+        "no-var": 0,
+    },
+}, {
+    files: ["**/*.test.ts", "**/*.test.tsx"],
+
+    rules: {
+        "@typescript-eslint/ban-ts-comment": "off",
+    },
+}];

CONTRIBUTING.md

@@ -1,6 +1,6 @@
 {
   "name": "datepicker",
-  "version": "6.6.1",
+  "version": "6.6.6",
   "description": "The ultimate tool to create a date, range and time picker in your React applications.",
   "scripts": {
     "clean": "rimraf node_modules",
@@ -40,6 +40,7 @@
   },
   "homepage": "https://github.com/rehookify/datepicker#readme",
   "devDependencies": {
+    "@eslint/compat": "^1.1.1",
     "@testing-library/react": "^16.0.0",
     "@typescript-eslint/eslint-plugin": "^7.15.0",
     "@typescript-eslint/parser": "^7.15.0",
@@ -62,6 +63,6 @@
     ]
   },
   "engines": {
-    "node": ">=16"
+    "node": ">=18"
   }
 }

eslint.config.mjs

@@ -1,6 +1,6 @@
 {
   "name": "@rehookify/datepicker",
-  "version": "6.6.5",
+  "version": "6.6.6",
   "description": "The ultimate tool to create a date, range and time picker in your React applications.",
   "main": "dist/index.cjs.js",
   "module": "dist/index.esm.mjs",
@@ -83,6 +83,6 @@
     "access": "public"
   },
   "engines": {
-    "node": ">=16"
+    "node": ">=18"
   }
 }

package.json

@@ -1,5 +1,5 @@
 import type { DPDatesConfig, DPLocaleConfig, DPMonth } from '../types';
-import { formatMonthName, getDateParts, newDate } from './date';
+import { daysInMonth, formatMonthName, getDateParts, newDate } from './date';
 import {
   isAfterMaxMonth,
   isBeforeMinMonth,
@@ -13,14 +13,16 @@ export var createMonths = (
   locale: DPLocaleConfig,
   { minDate, maxDate }: DPDatesConfig,
 ): DPMonth[] => {
-  // 12 is a number of months in the year
   const { M, Y, D } = getDateParts(offsetDate);
   const { Y: nY, M: nM } = getDateParts(newDate());
 
+  // 12 is a number of months in the year
   return Array(12)
     .fill(0)
     .map((_, i) => {
-      const $date = newDate(Y, i, D);
+      // Prevent situation when previous month has less days than current March -> February
+      const maxMonthDate = daysInMonth(newDate(Y, i, 1));
+      const $date = newDate(Y, i, D > maxMonthDate ? maxMonthDate : D);
 
       return {
         $date,