c# - What's faster: Regex or string operations? -


when should use regex on string operations , vice versa regarding performance?

it depends

although string manipulation faster, actual performance heavily depends on number of factors, including:

  • how many times parse regex
  • how cleverly write string code
  • whether regex precompiled

as regex gets more complicated, take more effort , complexity write equivlent string manipulation code performs well.


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