Hi,
I read that to check for empty strings , comparing strings using
String.Length == 0 is faster than String.Empty or "" . Is it true...?
If so, how?
4  1426 
AVL wrote: Hi,
I read that to check for empty strings , comparing strings using
String.Length == 0 is faster than String.Empty or "" . Is it true...?
If so, how?
I think it is faster because:
* Length is stored, doesn't need to be calculated
* integer comparison (Length == 0) is easier that string comparison,
which (I think) needs to be done on a character-by-character basis.
Hans Kesting
On Wed, 27 Apr 2005 22:46:02 -0700 in
microsoft.publi c.dotnet.framew ork.aspnet, AVL
<AV*@discussion s.microsoft.com > wrote: Hi,
I read that to check for empty strings , comparing strings using
String.Lengt h == 0 is faster than String.Empty or "" . Is it true...?
If so, how?
I think str.Length is probably faster, however if your string is null,
using Length will throw a NRE. I prefer to use
string.IsNullOr Empty(someStrin g). It safely works on null strings as
well as empty strings.
Roger
Under normal circumstances it's unlikely to give a perceptible difference...
You could easily measure and see what the IL is...
Patrice
--
"AVL" <AV*@discussion s.microsoft.com > a écrit dans le message de
news:1F******** *************** ***********@mic rosoft.com... Hi,
I read that to check for empty strings , comparing strings using
String.Length == 0 is faster than String.Empty or "" . Is it true...?
If so, how?
It is true that checking the String.Length is faster.
Numeric functions are almost always more efficient than string functions.
--
I hope this helps,
Steve C. Orr, MCSD, MVP http://SteveOrr.net
"AVL" <AV*@discussion s.microsoft.com > wrote in message
news:1F******** *************** ***********@mic rosoft.com... Hi,
I read that to check for empty strings , comparing strings using
String.Length == 0 is faster than String.Empty or "" . Is it true...?
If so, how? This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics | |
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