Enhance Counter Slice Logic and Validation

[amar-jondhalekar]

Description:

Objective: Improve the counter slice by adding validation, handling edge cases, and enhancing readability.

Details:

1. Input Validation for incrementByAmount:

   • Ensure that the incrementByAmount action only increments if the action.payload is a valid number.
   • Add validation to prevent invalid or non-numeric values from affecting the state.

2. Edge Case Handling:

   • Add a minimum limit (e.g., 0) to prevent the value from going below zero when the decrement action is dispatched.
   • Optionally, set a maximum limit (e.g., 1000) to prevent the value from exceeding a specified threshold.

3. Code Readability:

   • Add comments for each reducer function to explain the logic, especially the validation and edge case handling.
   • Refactor incrementByAmount to use parseInt or a similar function to safely parse numeric values.

Acceptance Criteria:

• The incrementByAmount function only increments with valid numbers.
• The counter cannot go below zero or above the maximum threshold.
• Code is documented and clear, with comments explaining each reducer function.

Additional Notes:

• Consider using utility functions to handle numeric parsing and validation.
• Test cases should be created to cover edge cases, such as negative values and values exceeding the maximum.