I'm trying to speed up the following:
string s; //--> s is never null
if (s.Length != 0)
{
<do something>
}
Problem is, it appears the .Length actually counts the characters in the string, and this is way more work than I need. Anybody have an idea on how to speed this up?
Or, is there a way to determine if s[0] exists, w/out checking the rest of the string?
String.IsNullOrEmpty is the preferred method for checking for null or zero length strings.
Internally, it will use Length. The Length property for a string should not be calculated on the fly though.
If you're absolutely certain that the string will never be null and you have some strong objection to String.IsNullOrEmpty, the most efficient code I can think of would be:
if(s.Length > 0)
{
// Do Something
}
Or, possibly even better:
if(s != "")
{
// Do Something
}