Question

I have some data coming in from a webpage and I need to filter it based on what comes back.
I have a pre-defined amount of keywords that I want to search for, around 30.

What is the most efficient way to match them up? Because I can have ~2000 records coming in I don’t think searching through a list/array/switch-case for every record is too efficient right?

Answer 1

Besides list/array/switch-case, the only thing I can think of is Linq.

List<string> found = (from str in listOfStringsToSearch 
                     where listOfKeywords.Any(keyword => str.Contains(keyword)) 
                     select str).ToList<string>();