Gemini Code Assist: Google AI Coding VS Code GitHub 1M Context Free Tier

Gemini Code Assist: Google AI Coding VS Code/JetBrains 1M Token Context

Gemini Code Assist ใช้ Gemini 2.5 รองรับ Java/Python/JS/C++/Go SQL Code completion + Chat + GitHub PR review Context 1M tokens Enterprise customization ฟรี/Standard/Enterprise

Gemini Code Assist vs Copilot

ฟีเจอร์หลัก

✅ Real-time code completion
✅ Chat ใน IDE (ไฟล์ context)
✅ GitHub PR auto-review (/gemini)
✅ Generate unit tests
✅ Full file/project generation
✅ Custom rules/commands

IDE Integration

⭐ VS Code: Extension marketplace
⭐ JetBrains: IntelliJ/PyCharm
⭐ Android Studio: Native
⭐ GitHub: /gemini comments
⭐ Web: cloud.google.com

Code Examples

VS Code Chat:

// @gemini explain this function
function calculateTax(amount, rate) {
  return amount * (1 + rate);
}

Gemini: "คำนวณภาษีโดยคูณจำนวนเงินด้วยอัตราภาษี 
ปัญหา: ไม่มี validation และ rounding"

GitHub PR Review:

/gemini review this PR
/gemini generate tests
/gemini upgrade to TypeScript

Enterprise Features

🔐 Private repo indexing
📚 Custom code training
⚙️ Style guide enforcement
👥 Team collaboration
🌐 Google Cloud integration

Context Window 1M Power

✅ เข้าใจ repo ทั้งโปรเจกต์
✅ Cross-file dependencies
✅ Architecture suggestions
✅ Legacy code migration
✅ Multi-language projects

Setup Guide (5 mins)

1. VS Code → Extensions → "Gemini Code Assist"
2. Google Account login
3. Settings → API Key (free tier)
4. Cmd+I = Inline completion
5. Cmd+Shift+P → "Gemini Chat"

Pricing Tiers

Production Workflows

🚀 New project: "Generate REST API + Tests"
🔧 Bug fix: "Find null pointer in auth module"
📚 Docs: "Generate JSDoc for all files"
♻️ Refactor: "Convert callback to async/await"
🧪 Testing: "Create 80% coverage tests"

Custom Commands

// .gemini-rules.json
{
  "always_test": true,
  "style": "prettier",
  "framework": "react + typescript",
  "naming": "camelCase"
}