You know how you assume you know until you find out you don't know.
Well, I typed into a function definition "..., new String("")).
I know what I want. Everyone reading this knows what I want. However,
the 1.0 compiler has no idea what I want.
Can anyone share with me the syntax that will actually communicate the
concept to the compiler, please?
thx
md
*** Sent via Developersdex http://www.developersdex.com *** 21  5750 
Actually I'm not sure what you want to accomplish. Creating a new
string with "new String()" automatically creates a zero length string.
So why use quotation marks?
Best Regards
Johann Blake
M D wrote: You know how you assume you know until you find out you don't know.
Well, I typed into a function definition "..., new String("")).
I know what I want. Everyone reading this knows what I want.
However, the 1.0 compiler has no idea what I want.
Can anyone share with me the syntax that will actually communicate the
concept to the compiler, please?
thx
md
*** Sent via Developersdex http://www.developersdex.com ***
Why not use just "" ?
It's a bit of overkill to create a new string-object that you supply with
a string-literal (which is also a string-object) that has exactly the same
value as you want to end up with...
You could also use the predefined constant String.Empty.
By the way, 1.1 has been out for quite some time ...
Hans Kesting
I second this, use the constant String.Empty, instead of using a magic
value. It's just better practice.
--
- Nicholas Paldino [.NET/C# MVP]
- mv*@spam.guard. caspershouse.co m
"Hans Kesting" <ne***********@ spamgourmet.com > wrote in message
news:eT******** ******@TK2MSFTN GP12.phx.gbl... M D wrote: You know how you assume you know until you find out you don't know.
Well, I typed into a function definition "..., new String("")).
I know what I want. Everyone reading this knows what I want.
However, the 1.0 compiler has no idea what I want.
Can anyone share with me the syntax that will actually communicate the
concept to the compiler, please?
thx
md
*** Sent via Developersdex http://www.developersdex.com ***
Why not use just "" ?
It's a bit of overkill to create a new string-object that you supply with
a string-literal (which is also a string-object) that has exactly the same
value as you want to end up with...
You could also use the predefined constant String.Empty.
By the way, 1.1 has been out for quite some time ...
Hans Kesting
new String(): "No overload for method 'String' takes '0' arguments"
I need to create a new string on the heap for the top of a recursive
method. Wouldn't just foo(..., "") reference a constant on the string
table, ie an immutable object?
I haven't been given the VS.net version beyond the first, hence 1.0.
thx
md
*** Sent via Developersdex http://www.developersdex.com ***
Hi M.D
if you really have to use a new instance of string, use:
string.Copy("")
but there really is no use of that other, than demonstrating the difference
of value and reference comparison.
Christof
"M D" <ma******@aol.c om> schrieb im Newsbeitrag
news:%2******** *******@TK2MSFT NGP10.phx.gbl.. . You know how you assume you know until you find out you don't know.
Well, I typed into a function definition "..., new String("")).
I know what I want. Everyone reading this knows what I want. However,
the 1.0 compiler has no idea what I want.
Can anyone share with me the syntax that will actually communicate the
concept to the compiler, please?
thx
md
*** Sent via Developersdex http://www.developersdex.com ***
Nicholas Paldino [.NET/C# MVP] <mv*@spam.guard .caspershouse.c om> wrote: I second this, use the constant String.Empty, instead of using a magic
value. It's just better practice.
In what way is it better practice than ""? They're both effectively
magic values in a way - it's not like using "foo" in two different
places, where you could accidentally change "foo" in one place but not
in another, but change the value in one place if you had it defined as
a constant. In this case, you'll never be able to change the value of
String.Empty anyway...
I've heard several people say that it *is* better to use String.Empty,
but never any believable reasons why. Personally I find "" more
readable.
--
Jon Skeet - <sk***@pobox.co m> http://www.pobox.com/~skeet
If replying to the group, please do not mail me too
Jon,
It really lends itself to maintaining discipline more than anything
else. In this case, I would say that there is a good arguement for "".
However, it is because of special conditions such as this that other
deviations from the practice become accepted. If there was actually a value
there, I am sure you would argue that a named constant should be used, for a
number of reasons. If the OP's value was subject to change, I would
actually recommend him using a named constant of his own (and not
String.Empty) and use that instead.
The interesting part about this is that I would not use a constant for
something such as 0 (when starting a loop) or 1 (for incrementing something
by one). Everyone has different tolerances, the empty string falls outside
of mine in this case.
For me, I just find it easier to adhere to an absolute rule instead of
having special cases (and admittedly, this is one of those cases where the
value isn't readily apparent). The more special cases you have, the more
you have to remember what they are, and the more subject your code is to
bugs.
--
- Nicholas Paldino [.NET/C# MVP]
- mv*@spam.guard. caspershouse.co m
"Jon Skeet [C# MVP]" <sk***@pobox.co m> wrote in message
news:MP******** *************** *@msnews.micros oft.com... Nicholas Paldino [.NET/C# MVP] <mv*@spam.guard .caspershouse.c om> wrote: I second this, use the constant String.Empty, instead of using a
magic
value. It's just better practice.
In what way is it better practice than ""? They're both effectively
magic values in a way - it's not like using "foo" in two different
places, where you could accidentally change "foo" in one place but not
in another, but change the value in one place if you had it defined as
a constant. In this case, you'll never be able to change the value of
String.Empty anyway...
I've heard several people say that it *is* better to use String.Empty,
but never any believable reasons why. Personally I find "" more
readable.
--
Jon Skeet - <sk***@pobox.co m>
http://www.pobox.com/~skeet
If replying to the group, please do not mail me too
Well, it's a monir point, but "String.Emp ty" is easier to search for, if
you needed to find everyplace it's used (searching for "" would trip you up
with false positives on strings like : @"Who said ""Which way did he
go?""?";
--
Truth,
James Curran
[erstwhile VC++ MVP]
Home: www.noveltheory.com Work: www.njtheater.com
Blog: www.honestillusion.com Day Job: www.partsearch.com
"Jon Skeet [C# MVP]" <sk***@pobox.co m> wrote in message
news:MP******** *************** *@msnews.micros oft.com... Nicholas Paldino [.NET/C# MVP] <mv*@spam.guard .caspershouse.c om> wrote: I second this, use the constant String.Empty, instead of using a
magic value. It's just better practice.
In what way is it better practice than ""? They're both effectively
magic values in a way - it's not like using "foo" in two different
places, where you could accidentally change "foo" in one place but not
in another, but change the value in one place if you had it defined as
a constant. In this case, you'll never be able to change the value of
String.Empty anyway...
I've heard several people say that it *is* better to use String.Empty,
but never any believable reasons why. Personally I find "" more
readable.
--
Jon Skeet - <sk***@pobox.co m>
http://www.pobox.com/~skeet
If replying to the group, please do not mail me too
Nicholas Paldino [.NET/C# MVP] <mv*@spam.guard .caspershouse.c om> wrote: It really lends itself to maintaining discipline more than anything
else. In this case, I would say that there is a good arguement for "".
However, it is because of special conditions such as this that other
deviations from the practice become accepted. If there was actually a value
there, I am sure you would argue that a named constant should be used, for a
number of reasons. If the OP's value was subject to change, I would
actually recommend him using a named constant of his own (and not
String.Empty) and use that instead.
Absolutely.
The interesting part about this is that I would not use a constant for
something such as 0 (when starting a loop) or 1 (for incrementing something
by one). Everyone has different tolerances, the empty string falls outside
of mine in this case.
That's fine - but I think it's then a matter of personal preference
rather than best practice.
For me, I just find it easier to adhere to an absolute rule instead of
having special cases (and admittedly, this is one of those cases where the
value isn't readily apparent). The more special cases you have, the more
you have to remember what they are, and the more subject your code is to
bugs.
I think it depends on the readability for me - "" is more readable than
String.Empty, and it's an easy enough single value to remember as an
exception to the rule.
--
Jon Skeet - <sk***@pobox.co m> http://www.pobox.com/~skeet
If replying to the group, please do not mail me too This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics | |
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