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javascript-typescript

javascript-typescript

github.com/moizibnyousaf开发1.2k216 次安装5 周前更新
代码仓库

关于 javascript-typescript

面向开发者的 JavaScript 和 TypeScript 开发技能，涵盖配置、常见模式和示例，包括类型技巧、现代 JavaScript、React 与 Node.js。

主要功能

  1. 01TypeScript 编译器配置
  2. 02工具类型与泛型约束
  3. 03判别联合类型
  4. 04现代 JavaScript 语法
  5. 05React 与 Node.js 模式

适用场景

  1. 01配置严格的 TypeScript 项目
  2. 02定义带类型的成功与错误结果
  3. 03使用现代 JavaScript 数组和对象模式
  4. 04应用 React 或 Node.js 编码模式

安装

复制下面的命令，在终端中运行。

$npx skills add https://github.com/moizibnyousaf/ai-agent-skills --skill javascript-typescript

安装后在 Claude Code 中输入/javascript-typescript确认已加载。

README 原文English

来自项目 README

README 暂无中文译文，以下为英文原文；中文介绍见上方。

JavaScript/TypeScript Development

TypeScript Configuration

{
  "compilerOptions": {
    "target": "ES2022",
    "module": "ESNext",
    "moduleResolution": "bundler",
    "strict": true,
    "noUncheckedIndexedAccess": true,
    "noImplicitOverride": true,
    "skipLibCheck": true,
    "declaration": true,
    "outDir": "./dist"
  },
  "include": ["src/**/*"],
  "exclude": ["node_modules", "dist"]
}

Type Patterns

Utility Types
// Pick specific properties
type UserPreview = Pick<User, 'id' | 'name'>;

// Omit properties
type CreateUser = Omit<User, 'id' | 'createdAt'>;

// Make all properties optional
type PartialUser = Partial<User>;

// Make all properties required
type RequiredUser = Required<User>;

// Extract union types
type Status = 'pending' | 'active' | 'inactive';
type ActiveStatus = Extract<Status, 'active' | 'pending'>;
Discriminated Unions
type Result<T> =
  | { success: true; data: T }
  | { success: false; error: Error };

function handleResult<T>(result: Result<T>) {
  if (result.success) {
    console.log(result.data); // T
  } else {
    console.error(result.error); // Error
  }
}
Generic Constraints
interface HasId {
  id: string | number;
}

function findById<T extends HasId>(items: T[], id: T['id']): T | undefined {
  return items.find(item => item.id === id);
}

Modern JavaScript

Destructuring & Spread
const { name, ...rest } = user;
const merged = { ...defaults, ...options };
const [first, ...others] = items;
Optional Chaining & Nullish Coalescing
const city = user?.address?.city ?? 'Unknown';
const count = data?.items?.length ?? 0;
Array Methods
const adults = users.filter(u => u.age >= 18);
const names = users.map(u => u.name);
const total = items.reduce((sum, item) => sum + item.price, 0);
const hasAdmin = users.some(u => u.role === 'admin');
const allActive = users.every(u => u.active);

React Patterns

// Props with children
interface CardProps {
  title: string;
  children: React.ReactNode;
}

// Event handlers
interface ButtonProps {
  onClick: (event: React.MouseEvent<HTMLButtonElement>) => void;
}

// Custom hooks
function useLocalStorage<T>(key: string, initial: T) {
  const [value, setValue] = useState<T>(() => {
    const stored = localStorage.getItem(key);
    return stored ? JSON.parse(stored) : initial;
  });

  useEffect(() => {
    localStorage.setItem(key, JSON.stringify(value));
  }, [key, value]);

  return [value, setValue] as const;
}

Node.js Patterns

// ES Modules
import { readFile } from 'node:fs/promises';
import { join } from 'node:path';

// Error handling
process.on('unhandledRejection', (reason) => {
  console.error('Unhandled Rejection:', reason);
  process.exit(1);
});

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