I am trying to build Alphabet base filter in LWC Datatable. I want to filter opportunity name based on the Alphabet pressed by the user i.e if letter 'A' is pressed then I should see only those opportunities where opportunity name starts with letter 'A' .This is where i am not able to find a solution how to filter the datatable based on the action of the user , I want to do this filter in js file as I already have the data which needs to be filtered. if somebody has implemented the same kind of functionality and can share the knowledge that will be helpful.