init: todo frontend
This commit is contained in:
ivanberry
commit
08f4e8f469
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# Logs
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logs
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*.log
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npm-debug.log*
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yarn-debug.log*
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yarn-error.log*
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pnpm-debug.log*
|
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lerna-debug.log*
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||||
|
||||
node_modules
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dist
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dist-ssr
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||||
*.local
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||||
|
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# Editor directories and files
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.vscode/*
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||||
!.vscode/extensions.json
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||||
.idea
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||||
.DS_Store
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||||
*.suo
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||||
*.ntvs*
|
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*.njsproj
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*.sln
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*.sw?
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# todo-frontend
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一个纯前端的 Todo 应用（无后端），支持新增 / 删除 / 编辑 / 完成状态切换 / 筛选，并使用 `localStorage` 持久化数据。
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## 技术栈
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- React + Vite + TypeScript
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- TailwindCSS
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- localStorage
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## 功能
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- 添加新 Todo（输入框 + 回车/按钮）
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- 删除 Todo
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- 编辑 Todo（双击标题或点击“编辑”按钮）
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- 切换完成状态（复选框）
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- 筛选：全部 / 进行中 / 已完成
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- 显示统计：剩余任务数
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- 空状态提示
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- 数据持久化到 localStorage
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## 本地开发
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```bash
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npm install
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npm run dev
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```
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打开终端输出的本地地址（通常是 `http://localhost:5173`）。
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## 构建与预览
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```bash
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npm run build
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npm run preview
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```
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构建产物在 `dist/` 目录，可直接部署到任意静态站点（如 Nginx、Vercel、Netlify、GitHub Pages 等）。
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## 代码结构
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- `src/hooks/useTodos.ts`：Todo 核心状态管理 + localStorage 持久化
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- `src/components/*`：UI 组件（输入、筛选、列表、单项）
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- `src/types/todo.ts`：类型定义
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- `src/utils/storage.ts`：localStorage 工具
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## 交互提示
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- 双击 Todo 标题进入编辑
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- 编辑时按 Enter 保存，Esc 取消，失焦自动保存
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- 标题清空会视为删除（常见 Todo UX）
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import js from '@eslint/js'
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import globals from 'globals'
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import reactHooks from 'eslint-plugin-react-hooks'
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import reactRefresh from 'eslint-plugin-react-refresh'
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import tseslint from 'typescript-eslint'
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import { defineConfig, globalIgnores } from 'eslint/config'
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export default defineConfig([
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globalIgnores(['dist']),
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{
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files: ['**/*.{ts,tsx}'],
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extends: [
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js.configs.recommended,
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tseslint.configs.recommended,
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reactHooks.configs.flat.recommended,
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reactRefresh.configs.vite,
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],
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languageOptions: {
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ecmaVersion: 2020,
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globals: globals.browser,
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},
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},
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])
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<!doctype html>
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<html lang="en">
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<head>
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<meta charset="UTF-8" />
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<link rel="icon" type="image/svg+xml" href="/vite.svg" />
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<meta name="viewport" content="width=device-width, initial-scale=1.0" />
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<title>todo-frontend</title>
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</head>
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<body>
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<div id="root"></div>
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<script type="module" src="/src/main.tsx"></script>
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</body>
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</html>
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File diff suppressed because it is too large
Load Diff
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{
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"name": "todo-frontend",
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"private": true,
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"version": "0.0.0",
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"type": "module",
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"scripts": {
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"dev": "vite",
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"build": "tsc -b && vite build",
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"lint": "eslint .",
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"preview": "vite preview"
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},
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"dependencies": {
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"react": "^19.2.0",
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"react-dom": "^19.2.0"
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},
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"devDependencies": {
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"@eslint/js": "^9.39.1",
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"@types/node": "^24.10.1",
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"@types/react": "^19.2.7",
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"@types/react-dom": "^19.2.3",
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"@vitejs/plugin-react": "^5.1.1",
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"autoprefixer": "^10.4.27",
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"eslint": "^9.39.1",
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"eslint-plugin-react-hooks": "^7.0.1",
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"eslint-plugin-react-refresh": "^0.4.24",
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"globals": "^16.5.0",
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"postcss": "^8.5.8",
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"tailwindcss": "^3.4.17",
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"typescript": "~5.9.3",
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"typescript-eslint": "^8.48.0",
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"vite": "^7.3.1"
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}
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}
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export default {
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plugins: {
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tailwindcss: {},
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autoprefixer: {},
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},
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}
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<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" class="iconify iconify--logos" width="31.88" height="32" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 257"><defs><linearGradient id="IconifyId1813088fe1fbc01fb466" x1="-.828%" x2="57.636%" y1="7.652%" y2="78.411%"><stop offset="0%" stop-color="#41D1FF"></stop><stop offset="100%" stop-color="#BD34FE"></stop></linearGradient><linearGradient id="IconifyId1813088fe1fbc01fb467" x1="43.376%" x2="50.316%" y1="2.242%" y2="89.03%"><stop offset="0%" stop-color="#FFEA83"></stop><stop offset="8.333%" stop-color="#FFDD35"></stop><stop offset="100%" stop-color="#FFA800"></stop></linearGradient></defs><path fill="url(#IconifyId1813088fe1fbc01fb466)" d="M255.153 37.938L134.897 252.976c-2.483 4.44-8.862 4.466-11.382.048L.875 37.958c-2.746-4.814 1.371-10.646 6.827-9.67l120.385 21.517a6.537 6.537 0 0 0 2.322-.004l117.867-21.483c5.438-.991 9.574 4.796 6.877 9.62Z"></path><path fill="url(#IconifyId1813088fe1fbc01fb467)" d="M185.432.063L96.44 17.501a3.268 3.268 0 0 0-2.634 3.014l-5.474 92.456a3.268 3.268 0 0 0 3.997 3.378l24.777-5.718c2.318-.535 4.413 1.507 3.936 3.838l-7.361 36.047c-.495 2.426 1.782 4.5 4.151 3.78l15.304-4.649c2.372-.72 4.652 1.36 4.15 3.788l-11.698 56.621c-.732 3.542 3.979 5.473 5.943 2.437l1.313-2.028l72.516-144.72c1.215-2.423-.88-5.186-3.54-4.672l-25.505 4.922c-2.396.462-4.435-1.77-3.759-4.114l16.646-57.705c.677-2.35-1.37-4.583-3.769-4.113Z"></path></svg>
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|
After Width: | Height: | Size: 1.5 KiB |
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#root {
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max-width: 1280px;
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margin: 0 auto;
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padding: 2rem;
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text-align: center;
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}
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.logo {
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height: 6em;
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padding: 1.5em;
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will-change: filter;
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transition: filter 300ms;
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}
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.logo:hover {
|
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filter: drop-shadow(0 0 2em #646cffaa);
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}
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.logo.react:hover {
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filter: drop-shadow(0 0 2em #61dafbaa);
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}
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@keyframes logo-spin {
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from {
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transform: rotate(0deg);
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}
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to {
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transform: rotate(360deg);
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}
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}
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@media (prefers-reduced-motion: no-preference) {
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a:nth-of-type(2) .logo {
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animation: logo-spin infinite 20s linear;
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}
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}
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.card {
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padding: 2em;
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}
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|
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.read-the-docs {
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color: #888;
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}
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import { FilterBar } from './components/FilterBar';
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import { TodoInput } from './components/TodoInput';
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import { TodoList } from './components/TodoList';
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import { useTodos } from './hooks/useTodos';
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export default function App() {
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const {
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visibleTodos,
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filter,
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setFilter,
|
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remainingCount,
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addTodo,
|
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deleteTodo,
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toggleTodo,
|
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editTodo,
|
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} = useTodos();
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|
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return (
|
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<div className="min-h-screen">
|
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<div className="mx-auto max-w-2xl px-4 py-10 sm:py-14">
|
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<header className="mb-8">
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<h1 className="text-balance text-2xl font-semibold tracking-tight text-slate-900 sm:text-3xl">
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Todo
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||||
</h1>
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<p className="mt-2 text-sm text-slate-600">纯前端 · React + Vite + TypeScript · localStorage 持久化</p>
|
||||
</header>
|
||||
|
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<main className="space-y-6">
|
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<TodoInput onAdd={addTodo} />
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|
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<FilterBar value={filter} onChange={setFilter} remainingCount={remainingCount} />
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|
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<TodoList todos={visibleTodos} onToggle={toggleTodo} onDelete={deleteTodo} onEdit={editTodo} />
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</main>
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|
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<footer className="mt-10 text-center text-xs text-slate-400">
|
||||
提示：双击任务可编辑；标题清空会删除。
|
||||
</footer>
|
||||
</div>
|
||||
</div>
|
||||
);
|
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}
|
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|
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@ -0,0 +1 @@
|
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<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" class="iconify iconify--logos" width="35.93" height="32" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 228"><path fill="#00D8FF" d="M210.483 73.824a171.49 171.49 0 0 0-8.24-2.597c.465-1.9.893-3.777 1.273-5.621c6.238-30.281 2.16-54.676-11.769-62.708c-13.355-7.7-35.196.329-57.254 19.526a171.23 171.23 0 0 0-6.375 5.848a155.866 155.866 0 0 0-4.241-3.917C100.759 3.829 77.587-4.822 63.673 3.233C50.33 10.957 46.379 33.89 51.995 62.588a170.974 170.974 0 0 0 1.892 8.48c-3.28.932-6.445 1.924-9.474 2.98C17.309 83.498 0 98.307 0 113.668c0 15.865 18.582 31.778 46.812 41.427a145.52 145.52 0 0 0 6.921 2.165a167.467 167.467 0 0 0-2.01 9.138c-5.354 28.2-1.173 50.591 12.134 58.266c13.744 7.926 36.812-.22 59.273-19.855a145.567 145.567 0 0 0 5.342-4.923a168.064 168.064 0 0 0 6.92 6.314c21.758 18.722 43.246 26.282 56.54 18.586c13.731-7.949 18.194-32.003 12.4-61.268a145.016 145.016 0 0 0-1.535-6.842c1.62-.48 3.21-.974 4.76-1.488c29.348-9.723 48.443-25.443 48.443-41.52c0-15.417-17.868-30.326-45.517-39.844Zm-6.365 70.984c-1.4.463-2.836.91-4.3 1.345c-3.24-10.257-7.612-21.163-12.963-32.432c5.106-11 9.31-21.767 12.459-31.957c2.619.758 5.16 1.557 7.61 2.4c23.69 8.156 38.14 20.213 38.14 29.504c0 9.896-15.606 22.743-40.946 31.14Zm-10.514 20.834c2.562 12.94 2.927 24.64 1.23 33.787c-1.524 8.219-4.59 13.698-8.382 15.893c-8.067 4.67-25.32-1.4-43.927-17.412a156.726 156.726 0 0 1-6.437-5.87c7.214-7.889 14.423-17.06 21.459-27.246c12.376-1.098 24.068-2.894 34.671-5.345a134.17 134.17 0 0 1 1.386 6.193ZM87.276 214.515c-7.882 2.783-14.16 2.863-17.955.675c-8.075-4.657-11.432-22.636-6.853-46.752a156.923 156.923 0 0 1 1.869-8.499c10.486 2.32 22.093 3.988 34.498 4.994c7.084 9.967 14.501 19.128 21.976 27.15a134.668 134.668 0 0 1-4.877 4.492c-9.933 8.682-19.886 14.842-28.658 17.94ZM50.35 144.747c-12.483-4.267-22.792-9.812-29.858-15.863c-6.35-5.437-9.555-10.836-9.555-15.216c0-9.322 13.897-21.212 37.076-29.293c2.813-.98 5.757-1.905 8.812-2.773c3.204 10.42 7.406 21.315 12.477 32.332c-5.137 11.18-9.399 22.249-12.634 32.792a134.718 134.718 0 0 1-6.318-1.979Zm12.378-84.26c-4.811-24.587-1.616-43.134 6.425-47.789c8.564-4.958 27.502 2.111 47.463 19.835a144.318 144.318 0 0 1 3.841 3.545c-7.438 7.987-14.787 17.08-21.808 26.988c-12.04 1.116-23.565 2.908-34.161 5.309a160.342 160.342 0 0 1-1.76-7.887Zm110.427 27.268a347.8 347.8 0 0 0-7.785-12.803c8.168 1.033 15.994 2.404 23.343 4.08c-2.206 7.072-4.956 14.465-8.193 22.045a381.151 381.151 0 0 0-7.365-13.322Zm-45.032-43.861c5.044 5.465 10.096 11.566 15.065 18.186a322.04 322.04 0 0 0-30.257-.006c4.974-6.559 10.069-12.652 15.192-18.18ZM82.802 87.83a323.167 323.167 0 0 0-7.227 13.238c-3.184-7.553-5.909-14.98-8.134-22.152c7.304-1.634 15.093-2.97 23.209-3.984a321.524 321.524 0 0 0-7.848 12.897Zm8.081 65.352c-8.385-.936-16.291-2.203-23.593-3.793c2.26-7.3 5.045-14.885 8.298-22.6a321.187 321.187 0 0 0 7.257 13.246c2.594 4.48 5.28 8.868 8.038 13.147Zm37.542 31.03c-5.184-5.592-10.354-11.779-15.403-18.433c4.902.192 9.899.29 14.978.29c5.218 0 10.376-.117 15.453-.343c-4.985 6.774-10.018 12.97-15.028 18.486Zm52.198-57.817c3.422 7.8 6.306 15.345 8.596 22.52c-7.422 1.694-15.436 3.058-23.88 4.071a382.417 382.417 0 0 0 7.859-13.026a347.403 347.403 0 0 0 7.425-13.565Zm-16.898 8.101a358.557 358.557 0 0 1-12.281 19.815a329.4 329.4 0 0 1-23.444.823c-7.967 0-15.716-.248-23.178-.732a310.202 310.202 0 0 1-12.513-19.846h.001a307.41 307.41 0 0 1-10.923-20.627a310.278 310.278 0 0 1 10.89-20.637l-.001.001a307.318 307.318 0 0 1 12.413-19.761c7.613-.576 15.42-.876 23.31-.876H128c7.926 0 15.743.303 23.354.883a329.357 329.357 0 0 1 12.335 19.695a358.489 358.489 0 0 1 11.036 20.54a329.472 329.472 0 0 1-11 20.722Zm22.56-122.124c8.572 4.944 11.906 24.881 6.52 51.026c-.344 1.668-.73 3.367-1.15 5.09c-10.622-2.452-22.155-4.275-34.23-5.408c-7.034-10.017-14.323-19.124-21.64-27.008a160.789 160.789 0 0 1 5.888-5.4c18.9-16.447 36.564-22.941 44.612-18.3ZM128 90.808c12.625 0 22.86 10.235 22.86 22.86s-10.235 22.86-22.86 22.86s-22.86-10.235-22.86-22.86s10.235-22.86 22.86-22.86Z"></path></svg>
|
||||
|
After Width: | Height: | Size: 4.0 KiB |
|
|
@ -0,0 +1,44 @@
|
|||
import type { TodoFilter } from '../types/todo';
|
||||
|
||||
interface FilterBarProps {
|
||||
value: TodoFilter;
|
||||
onChange: (value: TodoFilter) => void;
|
||||
remainingCount: number;
|
||||
}
|
||||
|
||||
const FILTERS: Array<{ key: TodoFilter; label: string }> = [
|
||||
{ key: 'all', label: '全部' },
|
||||
{ key: 'active', label: '进行中' },
|
||||
{ key: 'completed', label: '已完成' },
|
||||
];
|
||||
|
||||
export function FilterBar({ value, onChange, remainingCount }: FilterBarProps) {
|
||||
return (
|
||||
<div className="flex flex-col gap-3 sm:flex-row sm:items-center sm:justify-between">
|
||||
<div className="inline-flex w-full rounded-xl border border-slate-200 bg-white p-1 shadow-sm sm:w-auto">
|
||||
{FILTERS.map((f) => {
|
||||
const active = f.key === value;
|
||||
return (
|
||||
<button
|
||||
key={f.key}
|
||||
type="button"
|
||||
onClick={() => onChange(f.key)}
|
||||
className={
|
||||
'flex-1 rounded-lg px-3 py-2 text-sm transition sm:flex-none ' +
|
||||
(active
|
||||
? 'bg-slate-900 text-white shadow'
|
||||
: 'text-slate-600 hover:bg-slate-50 hover:text-slate-900')
|
||||
}
|
||||
>
|
||||
{f.label}
|
||||
</button>
|
||||
);
|
||||
})}
|
||||
</div>
|
||||
|
||||
<div className="text-sm text-slate-600">
|
||||
剩余 <span className="font-semibold text-slate-900">{remainingCount}</span> 项
|
||||
</div>
|
||||
</div>
|
||||
);
|
||||
}
|
||||
|
|
@ -0,0 +1,43 @@
|
|||
import { useState } from 'react';
|
||||
|
||||
interface TodoInputProps {
|
||||
onAdd: (title: string) => void;
|
||||
}
|
||||
|
||||
/**
|
||||
* Controlled input for adding new todos.
|
||||
* - Enter key adds
|
||||
* - Button adds
|
||||
*/
|
||||
export function TodoInput({ onAdd }: TodoInputProps) {
|
||||
const [value, setValue] = useState('');
|
||||
|
||||
const submit = () => {
|
||||
const trimmed = value.trim();
|
||||
if (!trimmed) return;
|
||||
onAdd(trimmed);
|
||||
setValue('');
|
||||
};
|
||||
|
||||
return (
|
||||
<div className="flex gap-2">
|
||||
<input
|
||||
value={value}
|
||||
onChange={(e) => setValue(e.target.value)}
|
||||
onKeyDown={(e) => {
|
||||
if (e.key === 'Enter') submit();
|
||||
}}
|
||||
placeholder="添加一个待办事项…"
|
||||
className="flex-1 rounded-xl border border-slate-200 bg-white px-4 py-3 text-sm shadow-sm outline-none transition focus:border-slate-300 focus:ring-4 focus:ring-slate-100"
|
||||
aria-label="新增 Todo"
|
||||
/>
|
||||
<button
|
||||
type="button"
|
||||
onClick={submit}
|
||||
className="rounded-xl bg-slate-900 px-4 py-3 text-sm font-medium text-white shadow-sm transition hover:bg-slate-800 focus:outline-none focus:ring-4 focus:ring-slate-200"
|
||||
>
|
||||
添加
|
||||
</button>
|
||||
</div>
|
||||
);
|
||||
}
|
||||
|
|
@ -0,0 +1,101 @@
|
|||
import { useEffect, useRef, useState } from 'react';
|
||||
import type { Todo } from '../types/todo';
|
||||
|
||||
interface TodoItemProps {
|
||||
todo: Todo;
|
||||
onToggle: (id: string) => void;
|
||||
onDelete: (id: string) => void;
|
||||
onEdit: (id: string, title: string) => void;
|
||||
}
|
||||
|
||||
/**
|
||||
* A single todo row.
|
||||
* - Double click title to edit
|
||||
* - Enter to save, Esc to cancel, blur to save
|
||||
*/
|
||||
export function TodoItem({ todo, onToggle, onDelete, onEdit }: TodoItemProps) {
|
||||
const [editing, setEditing] = useState(false);
|
||||
const [draft, setDraft] = useState(todo.title);
|
||||
const inputRef = useRef<HTMLInputElement | null>(null);
|
||||
|
||||
useEffect(() => {
|
||||
if (!editing) return;
|
||||
// Focus & select text when entering edit mode.
|
||||
inputRef.current?.focus();
|
||||
inputRef.current?.select();
|
||||
}, [editing]);
|
||||
|
||||
useEffect(() => {
|
||||
// Keep draft in sync if todo changes externally.
|
||||
if (!editing) setDraft(todo.title);
|
||||
}, [todo.title, editing]);
|
||||
|
||||
const commit = () => {
|
||||
setEditing(false);
|
||||
onEdit(todo.id, draft);
|
||||
};
|
||||
|
||||
const cancel = () => {
|
||||
setEditing(false);
|
||||
setDraft(todo.title);
|
||||
};
|
||||
|
||||
return (
|
||||
<li className="group flex items-center gap-3 rounded-xl border border-slate-200 bg-white px-3 py-3 shadow-sm">
|
||||
<input
|
||||
type="checkbox"
|
||||
checked={todo.completed}
|
||||
onChange={() => onToggle(todo.id)}
|
||||
className="h-5 w-5 rounded border-slate-300 text-slate-900 focus:ring-slate-200"
|
||||
aria-label={todo.completed ? '标记为未完成' : '标记为已完成'}
|
||||
/>
|
||||
|
||||
<div className="min-w-0 flex-1">
|
||||
{!editing ? (
|
||||
<div
|
||||
className={
|
||||
'cursor-text select-none text-sm leading-6 ' +
|
||||
(todo.completed ? 'text-slate-400 line-through' : 'text-slate-900')
|
||||
}
|
||||
title="双击编辑"
|
||||
onDoubleClick={() => setEditing(true)}
|
||||
>
|
||||
{todo.title}
|
||||
</div>
|
||||
) : (
|
||||
<input
|
||||
ref={inputRef}
|
||||
value={draft}
|
||||
onChange={(e) => setDraft(e.target.value)}
|
||||
onBlur={commit}
|
||||
onKeyDown={(e) => {
|
||||
if (e.key === 'Enter') commit();
|
||||
if (e.key === 'Escape') cancel();
|
||||
}}
|
||||
className="w-full rounded-lg border border-slate-200 bg-white px-3 py-2 text-sm outline-none focus:border-slate-300 focus:ring-4 focus:ring-slate-100"
|
||||
aria-label="编辑 Todo"
|
||||
/>
|
||||
)}
|
||||
</div>
|
||||
|
||||
<div className="flex items-center gap-2">
|
||||
{!editing && (
|
||||
<button
|
||||
type="button"
|
||||
onClick={() => setEditing(true)}
|
||||
className="hidden rounded-lg px-2 py-1 text-xs font-medium text-slate-600 hover:bg-slate-50 hover:text-slate-900 group-hover:inline-flex"
|
||||
>
|
||||
编辑
|
||||
</button>
|
||||
)}
|
||||
<button
|
||||
type="button"
|
||||
onClick={() => onDelete(todo.id)}
|
||||
className="rounded-lg px-2 py-1 text-xs font-medium text-rose-600 hover:bg-rose-50"
|
||||
>
|
||||
删除
|
||||
</button>
|
||||
</div>
|
||||
</li>
|
||||
);
|
||||
}
|
||||
|
|
@ -0,0 +1,27 @@
|
|||
import type { Todo } from '../types/todo';
|
||||
import { TodoItem } from './TodoItem';
|
||||
|
||||
interface TodoListProps {
|
||||
todos: Todo[];
|
||||
onToggle: (id: string) => void;
|
||||
onDelete: (id: string) => void;
|
||||
onEdit: (id: string, title: string) => void;
|
||||
}
|
||||
|
||||
export function TodoList({ todos, onToggle, onDelete, onEdit }: TodoListProps) {
|
||||
if (todos.length === 0) {
|
||||
return (
|
||||
<div className="rounded-2xl border border-dashed border-slate-200 bg-white px-6 py-12 text-center text-sm text-slate-500">
|
||||
暂无 Todo。试试在上方添加一个吧。
|
||||
</div>
|
||||
);
|
||||
}
|
||||
|
||||
return (
|
||||
<ul className="space-y-3">
|
||||
{todos.map((t) => (
|
||||
<TodoItem key={t.id} todo={t} onToggle={onToggle} onDelete={onDelete} onEdit={onEdit} />
|
||||
))}
|
||||
</ul>
|
||||
);
|
||||
}
|
||||
|
|
@ -0,0 +1,77 @@
|
|||
import { useEffect, useMemo, useState } from 'react';
|
||||
import type { Todo, TodoFilter, TodoId } from '../types/todo';
|
||||
import { readJson, writeJson } from '../utils/storage';
|
||||
|
||||
const STORAGE_KEY = 'todo-frontend.todos.v1';
|
||||
|
||||
function now() {
|
||||
return Date.now();
|
||||
}
|
||||
|
||||
function createTodo(title: string): Todo {
|
||||
const ts = now();
|
||||
return {
|
||||
id: crypto.randomUUID(),
|
||||
title: title.trim(),
|
||||
completed: false,
|
||||
createdAt: ts,
|
||||
updatedAt: ts,
|
||||
};
|
||||
}
|
||||
|
||||
export function useTodos() {
|
||||
const [todos, setTodos] = useState<Todo[]>(() => readJson<Todo[]>(STORAGE_KEY, []));
|
||||
const [filter, setFilter] = useState<TodoFilter>('all');
|
||||
|
||||
useEffect(() => {
|
||||
writeJson(STORAGE_KEY, todos);
|
||||
}, [todos]);
|
||||
|
||||
const remainingCount = useMemo(() => todos.filter((t) => !t.completed).length, [todos]);
|
||||
|
||||
const visibleTodos = useMemo(() => {
|
||||
if (filter === 'active') return todos.filter((t) => !t.completed);
|
||||
if (filter === 'completed') return todos.filter((t) => t.completed);
|
||||
return todos;
|
||||
}, [todos, filter]);
|
||||
|
||||
const addTodo = (title: string) => {
|
||||
const trimmed = title.trim();
|
||||
if (!trimmed) return;
|
||||
setTodos((prev) => [createTodo(trimmed), ...prev]);
|
||||
};
|
||||
|
||||
const deleteTodo = (id: TodoId) => {
|
||||
setTodos((prev) => prev.filter((t) => t.id !== id));
|
||||
};
|
||||
|
||||
const toggleTodo = (id: TodoId) => {
|
||||
setTodos((prev) =>
|
||||
prev.map((t) => (t.id === id ? { ...t, completed: !t.completed, updatedAt: now() } : t)),
|
||||
);
|
||||
};
|
||||
|
||||
const editTodo = (id: TodoId, nextTitle: string) => {
|
||||
const trimmed = nextTitle.trim();
|
||||
if (!trimmed) {
|
||||
// If the title becomes empty, treat as delete (common Todo UX).
|
||||
deleteTodo(id);
|
||||
return;
|
||||
}
|
||||
setTodos((prev) =>
|
||||
prev.map((t) => (t.id === id ? { ...t, title: trimmed, updatedAt: now() } : t)),
|
||||
);
|
||||
};
|
||||
|
||||
return {
|
||||
todos,
|
||||
visibleTodos,
|
||||
filter,
|
||||
setFilter,
|
||||
remainingCount,
|
||||
addTodo,
|
||||
deleteTodo,
|
||||
toggleTodo,
|
||||
editTodo,
|
||||
};
|
||||
}
|
||||
|
|
@ -0,0 +1,15 @@
|
|||
@tailwind base;
|
||||
@tailwind components;
|
||||
@tailwind utilities;
|
||||
|
||||
:root {
|
||||
color-scheme: light;
|
||||
}
|
||||
|
||||
html, body {
|
||||
height: 100%;
|
||||
}
|
||||
|
||||
body {
|
||||
@apply bg-slate-50 text-slate-900;
|
||||
}
|
||||
|
|
@ -0,0 +1,10 @@
|
|||
import { StrictMode } from 'react'
|
||||
import { createRoot } from 'react-dom/client'
|
||||
import './index.css'
|
||||
import App from './App.tsx'
|
||||
|
||||
createRoot(document.getElementById('root')!).render(
|
||||
<StrictMode>
|
||||
<App />
|
||||
</StrictMode>,
|
||||
)
|
||||
|
|
@ -0,0 +1,11 @@
|
|||
export type TodoId = string;
|
||||
|
||||
export interface Todo {
|
||||
id: TodoId;
|
||||
title: string;
|
||||
completed: boolean;
|
||||
createdAt: number;
|
||||
updatedAt: number;
|
||||
}
|
||||
|
||||
export type TodoFilter = 'all' | 'active' | 'completed';
|
||||
|
|
@ -0,0 +1,21 @@
|
|||
/**
|
||||
* localStorage helper with safe JSON parse.
|
||||
* Keeps the app resilient in case users manually modify localStorage.
|
||||
*/
|
||||
export function readJson<T>(key: string, fallback: T): T {
|
||||
try {
|
||||
const raw = localStorage.getItem(key);
|
||||
if (!raw) return fallback;
|
||||
return JSON.parse(raw) as T;
|
||||
} catch {
|
||||
return fallback;
|
||||
}
|
||||
}
|
||||
|
||||
export function writeJson<T>(key: string, value: T): void {
|
||||
try {
|
||||
localStorage.setItem(key, JSON.stringify(value));
|
||||
} catch {
|
||||
// Ignore quota/security errors; the app still works in-memory.
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,8 @@
|
|||
/** @type {import('tailwindcss').Config} */
|
||||
export default {
|
||||
content: ['./index.html', './src/**/*.{ts,tsx}'],
|
||||
theme: {
|
||||
extend: {},
|
||||
},
|
||||
plugins: [],
|
||||
}
|
||||
|
|
@ -0,0 +1,28 @@
|
|||
{
|
||||
"compilerOptions": {
|
||||
"tsBuildInfoFile": "./node_modules/.tmp/tsconfig.app.tsbuildinfo",
|
||||
"target": "ES2022",
|
||||
"useDefineForClassFields": true,
|
||||
"lib": ["ES2022", "DOM", "DOM.Iterable"],
|
||||
"module": "ESNext",
|
||||
"types": ["vite/client"],
|
||||
"skipLibCheck": true,
|
||||
|
||||
/* Bundler mode */
|
||||
"moduleResolution": "bundler",
|
||||
"allowImportingTsExtensions": true,
|
||||
"verbatimModuleSyntax": true,
|
||||
"moduleDetection": "force",
|
||||
"noEmit": true,
|
||||
"jsx": "react-jsx",
|
||||
|
||||
/* Linting */
|
||||
"strict": true,
|
||||
"noUnusedLocals": true,
|
||||
"noUnusedParameters": true,
|
||||
"erasableSyntaxOnly": true,
|
||||
"noFallthroughCasesInSwitch": true,
|
||||
"noUncheckedSideEffectImports": true
|
||||
},
|
||||
"include": ["src"]
|
||||
}
|
||||
|
|
@ -0,0 +1,7 @@
|
|||
{
|
||||
"files": [],
|
||||
"references": [
|
||||
{ "path": "./tsconfig.app.json" },
|
||||
{ "path": "./tsconfig.node.json" }
|
||||
]
|
||||
}
|
||||
|
|
@ -0,0 +1,26 @@
|
|||
{
|
||||
"compilerOptions": {
|
||||
"tsBuildInfoFile": "./node_modules/.tmp/tsconfig.node.tsbuildinfo",
|
||||
"target": "ES2023",
|
||||
"lib": ["ES2023"],
|
||||
"module": "ESNext",
|
||||
"types": ["node"],
|
||||
"skipLibCheck": true,
|
||||
|
||||
/* Bundler mode */
|
||||
"moduleResolution": "bundler",
|
||||
"allowImportingTsExtensions": true,
|
||||
"verbatimModuleSyntax": true,
|
||||
"moduleDetection": "force",
|
||||
"noEmit": true,
|
||||
|
||||
/* Linting */
|
||||
"strict": true,
|
||||
"noUnusedLocals": true,
|
||||
"noUnusedParameters": true,
|
||||
"erasableSyntaxOnly": true,
|
||||
"noFallthroughCasesInSwitch": true,
|
||||
"noUncheckedSideEffectImports": true
|
||||
},
|
||||
"include": ["vite.config.ts"]
|
||||
}
|
||||
|
|
@ -0,0 +1,7 @@
|
|||
import { defineConfig } from 'vite'
|
||||
import react from '@vitejs/plugin-react'
|
||||
|
||||
// https://vite.dev/config/
|
||||
export default defineConfig({
|
||||
plugins: [react()],
|
||||
})
|
||||
Loading…
Reference in New Issue