Opticode Analyzer

Detect performance issues and inefficient patterns in your JavaScript code — in real-time.

No setup. No configuration. Just install and start coding.

🚀 Why Opticode Analyzer?

Most performance issues are introduced during development and go unnoticed until production.

Opticode Analyzer helps you catch them early by highlighting inefficient patterns directly in your editor — so you can fix problems before they scale.

⚡ Features

🔍 Real-time Analysis

• Instantly analyzes your code as you type
• No delays, no manual triggers
• Works out of the box

🎯 Performance Issue Detection

• Nested Logic & Deep Nesting Detects code nested more than 4 levels deep

• Long Functions Flags functions exceeding 50 lines

• Loop Inefficiencies Identifies unnecessary loops and early-break patterns

• Heavy Operations in Loops Detects inefficient operations like string concatenation inside loops

• Console Statements Flags console.log, warn, error for cleanup

• Unused Variables Highlights variables that may not be used

• Incorrect Variable Usage Suggests using const instead of let when possible

• Implicit Globals Detects undeclared variables

📊 Severity Levels

• 🔴 Error — Critical issues
• 🟡 Warning — Performance problems
• 🔵 Info — Improvements
• ⚪ Hint — Minor suggestions

🧪 Examples

Long Function

function processData(data) {
  // ... 55 lines
  // ⚠️ Function is too long. Consider splitting it.
}

Deep Nesting

if (a) {
  if (b) {
    if (c) {
      if (d) {
        if (e) {
          // ⚠️ Too deeply nested
        }
      }
    }
  }
}

Inefficient Loop

let result = "";
for (let i = 0; i < arr.length; i++) {
  result += arr[i]; // ⚠️ Use array.join()
}

Console Statement

console.log("debug"); // ⚠️ Remove before production

🛠️ Usage

Automatic

• Open a JavaScript file
• Start coding
• Issues are detected instantly

Manual

• Ctrl + Shift + O → Analyze current file
• Or use Command Palette → Opticode: Analyze Current File

📌 Requirements

• VS Code 1.116.0 or later
• JavaScript / React files

⚠️ Known Limitations

• Some detections are heuristic-based and may produce false positives
• Complex patterns may not always be detected

🚧 Roadmap

• Smarter performance detection
• SQL/query optimization hints
• AI-powered suggestions
• Custom rule configuration

🤝 Contributing

Contributions are welcome. Feel free to open issues or submit pull requests.

📦 Release Notes

0.0.1

• Initial release
• Real-time JavaScript analysis
• Multiple performance issue detections
• Problems panel integration

Write cleaner, faster, and more efficient code — without extra effort.