Warning

🚧 Work in Progress: This page is currently under construction. Content may be incomplete or subject to change. To contribute, see the contribution guide.

JavaScript / TypeScript Standards

---

Tools

• Formatter: Prettier
• Linter: ESLint
• Runtime: Node.js 20 LTS

---

Minimum configuration

// .prettierrc
{
  "semi": true,
  "singleQuote": true,
  "tabWidth": 2,
  "trailingComma": "es5"
}

---

Best practices

• TypeScript preferred over plain JavaScript for new projects
• async/await preferred over callbacks or .then() chains
• Error handling mandatory for API calls and I/O operations

// ✅ CORRECT
async function fetchData(endpoint: string): Promise<DataItem[]> {
  try {
    const response = await fetch(endpoint);
    if (!response.ok) throw new Error(`HTTP ${response.status}`);
    return await response.json();
  } catch (error) {
    console.error('Error fetching data:', error);
    throw error;
  }
}