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Check Sorting

Check if the input array is sorted in ascending or descending order, or is unsorted. The logic is implemented within a custom Scripting Rule.

DecisionRules

David Škarka

Template author

Check Sorting 1
This Complex Rule verifies the organization of data within a list. It analyzes an input array to determine if the elements are arranged in a specific sequence (ascending or descending), if they are equal, or if no sorting pattern exists.

Solution components
  • A Scripting Rule named Check Sorting executes custom logic to assess the order of elements provided in the input.
  • Input validation logic first checks the volume of data. If the input array contains fewer than two items, the rule returns a specific status indicating insufficient data to determine an order.
  • Iterative comparison logic cycles through the array comparing adjacent elements:
    • It ignores adjacent identical elements.
    • It establishes an initial direction (ascending or descending) based on the first unequal pair found.
    • If subsequent pairs contradict the established direction, the rule immediately identifies the list as "unsorted".
  • Final status determination assigns a final output string based on the analysis:
    • "ascending": If all comparable elements increase in value.
    • "descending": If all comparable elements decrease in value.
    • "all items are equal": If no difference in value was found across the entire array.
    • "unsorted": If the elements follow no consistent order.
    • "not enough items": If the array length is less than 2.
  • Output formatting ensures the result is returned in the output field, while preserving the original data in the inputValues field for reference.
Check iconA checkmark inside a circle signifying "yes"Minus iconA minus inside a circle signifying "no"PROS IconA plus symbol representing positive aspects or benefits.CONS IconA minus symbol representing negative aspects or drawbacks.

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