Why is the global filter function not working for date search in PrimeNG's p-table?

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It's difficult to say exactly why the global filter function may not be working for date search in PrimeNG's p-table without more information about how the filter is set up and what behavior is occurring. However, some possible reasons for issues with date filtering could include incorrect data formatting or issues with the filter function logic itself. It may be helpful to review the PrimeNG documentation and examples for guidance in setting up date filtering correctly. Additionally, debugging the code and reviewing any error messages or console logs may help identify specific issues with the filter function's behavior.