Loaded Source URL
App Behavior Summary
The application is a functional Unit Converter designed to translate values between different measurement systems (e.g., Length, Weight, Temperature). The interface features dropdown menus for selecting the "From" and "To" units, an input field for the numerical value, and a "Convert" button. The logic appears to be client-side, providing instant results for standard conversions like Celsius to Fahrenheit or Meters to Feet.
Observations and Unexpected Issues
- Input Validation: The app allowed for negative values in fields where negative numbers are physically impossible (e.g., length and weight), which could lead to nonsensical results.
- UI Responsiveness: When performing a temperature conversion, the result displayed with an excessive number of decimal places (e.g., 10 decimals), which cluttered the interface and made it difficult to read.
- State Persistence: Refreshing the page cleared all inputs and unit selections immediately, rather than saving the last used conversion type.
Improvement Prompt
Below is a prompt designed to improve the application's functionality and user experience:
"Refactor the Unit Converter application to include robust input validation that prevents negative numbers for length and mass. Implement a rounding function to limit result outputs to 3 decimal places for better readability. Additionally, add a 'Swap' button between the unit dropdowns to quickly invert the conversion direction, and use localStorage to remember the user's last selected unit category across sessions."