Filter operators isEmpty and isNotEmpty are Non-functional

[krukrue]

I prepared demo to show it:
https://stackblitz.com/edit/table-filter-row-custom-editor-ts-vpjndu?file=Demo.tsx

Tip for improving https://github.com/komarovalexander/ka-table/blob/master/src/lib/Utils/CommonUtils.ts - in isEmpty function would be good to compare not only null or empty array, but empty string also.

Thank you.

[komarovalexander]

Hi @krukrue thanks for example, I will investigate it.
btw isEmpty works correctly as value.length === 0 is an empty string check also, maybe not so obvious - but it is covered by tests and do not see the reason to write (value.length === 0 || value =='') as both comparisons do the same

[komarovalexander]

fixed in v8.8.1

demo: https://stackblitz.com/edit/table-filter-row-custom-editor-ts-4prfhw?file=Demo.tsx