[Utility Name] - [Brief Purpose]

Template Instructions: Replace all [PLACEHOLDER] content with your specific information. Delete this instruction block before publishing.

[Brief description of what the utility does and why it exists. Focus on the problems it solves and common use cases.]

🎯 Overview

Purpose

[Explain the specific problem this utility solves and why it was created. Include context about when and why to use this utility.]

Key Features

• [Feature 1] - [Description of the first key feature]
• [Feature 2] - [Description of the second key feature]
• [Feature 3] - [Description of the third key feature]

Location

src/lib/[utility-path]/
├── index.ts                    # Main export
├── [utilityName].ts           # Main implementation
├── [utilityName].test.ts      # Unit tests
├── types.ts                   # TypeScript definitions
└── constants.ts               # Constants (if needed)

🚀 Quick Start

Basic Usage

import { [utilityName] } from '@lib/[utility-path]';

// Simple usage
const result = [utilityName]([parameters]);

// With options
const result = [utilityName]([parameters], {
  [option1]: [value1],
  [option2]: [value2]
});

Real-World Example

import { [utilityName] } from '@lib/[utility-path]';

function ExampleComponent() {
  const [data, setData] = useState([initialValue]);

  const processedData = [utilityName](data, {
    [option]: [value]
  });

  return (
    <div>
      {processedData.map(item => (
        <div key={item.id}>{item.name}</div>
      ))}
    </div>
  );
}

📋 API Reference

Function Signature

function [utilityName]<T>(
  [parameter1]: [Type1],
  [parameter2]?: [Type2],
  options?: [OptionsType]
): [ReturnType]<T>;

Parameters

Parameter	Type	Required	Default	Description
[parameter1]	[Type1]	Yes	-	[Description of parameter]
[parameter2]	[Type2]	No	[default]	[Description of parameter]
options	[OptionsType]	No	{}	[Description of options]

Options Interface

interface [UtilityName]Options {
  /** [Description of option] */
  [option1]?: [Type1];

  /** [Description of option] */
  [option2]?: [Type2];

  /** [Description of option] */
  [option3]?: [Type3];
}

Return Type

interface [UtilityName]Result<T> {
  /** [Description of result property] */
  [result1]: [Type1];

  /** [Description of result property] */
  [result2]: [Type2];

  /** [Description of result property] */
  data: T[];

  /** [Description of result property] */
  success: boolean;
}

🎨 Usage Examples

Basic Examples

// Example 1: [Description]
const result1 = [utilityName]([simple - params]);

// Example 2: [Description]
const result2 = [utilityName]([params], {
  [option]: [value]
});

// Example 3: [Description]
const result3 = [utilityName]([complex - params], {
  [option1]: [value1],
  [option2]: [value2]
});

Advanced Examples

// Advanced Example 1: [Description]
const advancedResult = [utilityName]([data], {
  [option1]: [value1],
  [option2]: [value2],
  [transformFn]: (item) => ({
    ...item,
    processed: true
  })
});

// Advanced Example 2: [Description]
const asyncResult = await[utilityName]([data], {
  [asyncOption]: true,
  [callback]: (progress) => {
    console.log(`Progress: ${progress}%`);
  }
});

Integration Examples

// With React hooks
function useProcessedData(rawData: [DataType]) {
  return useMemo(() => {
    return [utilityName](rawData, {
      [option]: [value]
    });
  }, [rawData]);
}

// With form validation
const validationResult = [utilityName](formData, {
  [validationRules]: [rules]
});

// With API responses
const transformedData = [utilityName](apiResponse.data, {
  [transformOptions]: [options]
});

🔧 Configuration Options

Default Configuration

const DEFAULT_OPTIONS: [UtilityName]Options = {
  [option1]: [defaultValue1],
  [option2]: [defaultValue2],
  [option3]: [defaultValue3]
};

Environment-Based Configuration

// Development mode
const devOptions = {
  [debugMode]: true,
  [verbose]: true
};

// Production mode
const prodOptions = {
  [optimized]: true,
  [cache]: true
};

🧪 Testing

Unit Tests

import { [utilityName] } from './[utilityName]';

describe('[utilityName]', () => {
  it('should handle basic input', () => {
    const input = [testInput];
    const result = [utilityName](input);

    expect(result).toEqual([expectedOutput]);
  });

  it('should handle options correctly', () => {
    const input = [testInput];
    const options = { [option]: [value] };
    const result = [utilityName](input, options);

    expect(result.[property]).toBe([expectedValue]);
  });

  it('should handle edge cases', () => {
    const emptyInput = [];
    const result = [utilityName](emptyInput);

    expect(result).toEqual([expectedEmptyResult]);
  });

  it('should handle invalid input gracefully', () => {
    expect(() => [utilityName](null)).toThrow('[expected error]');
  });
});

Performance Tests

describe('[utilityName] Performance', () => {
  it('should handle large datasets efficiently', () => {
    const largeDataset = Array.from({ length: 10000 }, (_, i) => ({
      id: i,
      value: `item-${i}`
    }));

    const start = performance.now();
    const result = [utilityName](largeDataset);
    const end = performance.now();

    expect(end - start).toBeLessThan(100); // Should take less than 100ms
    expect(result.length).toBe(10000);
  });
});

🚀 Performance

Optimization Features

• [Optimization 1] - [Description of optimization]
• [Optimization 2] - [Description of optimization]
• [Optimization 3] - [Description of optimization]

Performance Considerations

// ✅ Good: Memoized for expensive operations
const memoizedResult = useMemo(() => {
  return [utilityName](data, options);
}, [data, options]);

// ✅ Good: Batch processing
const batchedResults = [utilityName](largeDataset, {
  [batchSize]: 100
});

// ❌ Avoid: Recreating options on every render
const Component = () => {
  const options = { [option]: [value] }; // Recreated every render
  return [utilityName](data, options);
};

// ✅ Better: Stable options
const Component = () => {
  const options = useMemo(() => ({ [option]: [value] }), []);
  return [utilityName](data, options);
};

Benchmarks

// Performance benchmarks
const benchmarks = {
  'Small dataset (100 items)': '[time]ms',
  'Medium dataset (1,000 items)': '[time]ms',
  'Large dataset (10,000 items)': '[time]ms'
};

🔄 Related Utilities

Utility Ecosystem

• [Related Utility 1] - [Brief description and relationship]
• [Related Utility 2] - [Brief description and relationship]
• [Related Hook] - [Brief description and relationship]

Usage Together

// Utilities working together
const step1 = [utilityName1](data);
const step2 = [utilityName2](step1.result);
const finalResult = [utilityName3](step2);

// Chaining utilities
const result = [utilityName](data)
  .pipe([relatedUtility1])
  .pipe([relatedUtility2]);

🐛 Error Handling

Error Types

// Custom error types
class [UtilityName]Error extends Error {
  constructor(
    message: string,
    public code: string,
    public details?: any
  ) {
    super(message);
    this.name = '[UtilityName]Error';
  }
}

// Error codes
enum [UtilityName]ErrorCode {
  INVALID_INPUT = 'INVALID_INPUT',
  PROCESSING_FAILED = 'PROCESSING_FAILED',
  TIMEOUT = 'TIMEOUT'
}

Error Handling Examples

// Basic error handling
try {
  const result = [utilityName](data);
} catch (error) {
  if (error instanceof [UtilityName]Error) {
    console.error(`[${error.code}] ${error.message}`);
  } else {
    console.error('Unexpected error:', error);
  }
}

// With error recovery
const resultWithFallback = [utilityName](data, {
  [onError]: (error) => {
    console.warn('Processing failed, using fallback');
    return [fallbackValue];
  }
});

🔍 Common Use Cases

Use Case 1: [Description]

// Problem: [Description of problem]
// Solution: [Description of solution]

const solution = [utilityName]([problem - data], {
  [option]: [value]
});

Use Case 2: [Description]

// Problem: [Description of problem]
// Solution: [Description of solution]

const solution = [utilityName]([problem - data], {
  [option]: [value]
});

Use Case 3: [Description]

// Problem: [Description of problem]
// Solution: [Description of solution]

const solution = [utilityName]([problem - data], {
  [option]: [value]
});

🐛 Troubleshooting

Common Issues

Issue: [Common problem]

Symptoms: [What the user sees] Solution: [How to fix it]

// ❌ Problem
const problematicUsage = [utilityName]([wrong - usage]);

// ✅ Solution
const correctUsage = [utilityName]([correct - usage]);

Issue: [Another common problem]

Symptoms: [What the user sees] Solution: [How to fix it]

Debug Mode

// Enable debug logging
const result = [utilityName](data, {
  [debug]: true
});

// Access debug information
const debugInfo = [utilityName].getDebugInfo();
console.log(debugInfo);

📚 Implementation Details

Algorithm

[Describe the algorithm or approach used]

// Simplified implementation example
function [utilityName]<T>(
  data: T[],
  options: [OptionsType] = {}
): [ReturnType]<T> {
  // Step 1: [Description]
  const prepared = prepareData(data, options);

  // Step 2: [Description]
  const processed = processData(prepared, options);

  // Step 3: [Description]
  const result = formatResult(processed, options);

  return result;
}

Type Safety

// Type guards
function is[Type](value: unknown): value is [Type] {
  return typeof value === '[type]' && [additional-checks];
}

// Generic constraints
function [utilityName]<T extends [Constraint]>(
  data: T[],
  options?: [OptionsType]
): [ReturnType]<T> {
  // Implementation
}

🔗 Related Resources

Documentation Links

• Related Utility Documentation
• API Documentation
• Type Definitions

External Resources

• TypeScript Documentation
• JavaScript Documentation
• Performance Best Practices

Development Resources

• Testing Guide
• Performance Guide
• TypeScript Guide

---

📝 Changelog

Version [X.X.X] - [Date]

• Added: [New features]
• Changed: [Breaking changes]
• Fixed: [Bug fixes]
• Performance: [Performance improvements]

Version [X.X.X] - [Date]

• Added: [New features]
• Changed: [Changes]
• Fixed: [Bug fixes]

---

Last Updated: [Date]
Utility Version: [Version]
Documentation Version: [Version]

Next Steps: [What to do after reading this documentation]

This utility is part of the Idling.app utility library. For implementation details, see the Development Guide.