What is the difference between "+" and "&" operator when joining strings?
Thanx!
Thanx!
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Re: + and & operators
"Domac" <dd@dd.cc> schrieb:[color=blue]
> What is the difference between "+" and "&" operator when joining strings?[/color]
Did you already read the documentation on these operators?
--
M S Herfried K. Wagner
M V P <URL:http://dotnet.mvps.org/>
V B <URL:http://classicvb.org/petition/>
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Re: + and & operators
On Thu, 29 Jun 2006 13:51:07 +0200 Domac <dd@dd.cc> wrote:
[color=blue]
> *From:* "Domac" <dd@dd.cc>
> *Date:* Thu, 29 Jun 2006 13:51:07 +0200
>
> What is the difference between "+" and "&" operator when joining
> strings?
>[/color]
Not much difference when joining two real strings.
"aaa" + "bbb" would give the same result as "aaa" & "bbb" i.e. "aaabbb"
However, if one expression is a number and one a string then things are
less clear...
"5" + 10 will give the number 15. The "5" is converted to a number "on the
fly".
Whereas "5" & 10 will give the string "510". The 10 is converted to a
string "on the fly".
+ should really only be used to add numbers, and & should be used to
concatenate strings.
Comment
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Re: + and & operators
Thanks a lot!
"Domac" <dd@dd.cc> wrote in message
news:un%23SQJ3m GHA.732@TK2MSFT NGP04.phx.gbl.. .[color=blue]
> What is the difference between "+" and "&" operator when joining strings?
>
>
> Thanx!
>
>
>[/color]
Comment
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Re: + and & operators
Domac wrote:[color=blue]
> What is the difference between "+" and "&" operator when joining strings?[/color]
With "Option Strict On" - none at all.
With "Option Strict Off" and joining only Strings - none at all.
With "Option Strict Off" and joining Strings and /other/ data types -
the effects can be "interestin g" ...
HTH,
Phill W.
Comment
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Re: + and & operators
Phill W. wrote:[color=blue]
> Domac wrote:[color=green]
> > What is the difference between "+" and "&" operator when joining strings?[/color]
>
> With "Option Strict On" - none at all.
>
> With "Option Strict Off" and joining only Strings - none at all.
>
> With "Option Strict Off" and joining Strings and /other/ data types -
> the effects can be "interestin g" ...
>
> HTH,
> Phill W.[/color]
Except that you can do += but not &=.
B.
Comment
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Re: + and & operators
I use &= in assignment statements all the time. For example:
strHTML &= MonthName(CInt( sMonth), False) & " - " & sYear &
"</h3></center><br>"
Hope this helps...
Dick
"Brian Tkatch" <Maxwell_Smart@ ThePentagon.com > wrote in message
news:1151593333 .087137.67580@b 68g2000cwa.goog legroups.com...[color=blue]
>
> Phill W. wrote:[color=green]
>> Domac wrote:[color=darkred]
>> > What is the difference between "+" and "&" operator when joining
>> > strings?[/color]
>>
>> With "Option Strict On" - none at all.
>>
>> With "Option Strict Off" and joining only Strings - none at all.
>>
>> With "Option Strict Off" and joining Strings and /other/ data types -
>> the effects can be "interestin g" ...
>>
>> HTH,
>> Phill W.[/color]
>
> Except that you can do += but not &=.
>
> B.
>[/color]
Comment
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Re: + and & operators
Dick Sutton wrote:[color=blue]
> I use &= in assignment statements all the time. For example:
>
> strHTML &= MonthName(CInt( sMonth), False) & " - " & sYear &
> "</h3></center><br>"
>
> Hope this helps...
>
> Dick
>
> "Brian Tkatch" <Maxwell_Smart@ ThePentagon.com > wrote in message
> news:1151593333 .087137.67580@b 68g2000cwa.goog legroups.com...[color=green]
> >
> > Phill W. wrote:[color=darkred]
> >> Domac wrote:
> >> > What is the difference between "+" and "&" operator when joining
> >> > strings?
> >>
> >> With "Option Strict On" - none at all.
> >>
> >> With "Option Strict Off" and joining only Strings - none at all.
> >>
> >> With "Option Strict Off" and joining Strings and /other/ data types -
> >> the effects can be "interestin g" ...
> >>
> >> HTH,
> >> Phill W.[/color]
> >
> > Except that you can do += but not &=.
> >
> > B.
> >[/color][/color]
OK, i see, my mistake. Thanks for the correction.
I quickly tested it out by opening a module and typing:
Sub a()
Dim a As String
a+=a
a&=a
End Sub
The editor separated a+=a into a += a, but it separated a&=a to a& = a
and underlined a& as an error. Which i assumed (incorrectly) that &=
was not supported.
So, perhaps a difference is whether the editor put in that space before
the operator. With = is does, with & it does not. Well, nothing too
important. :)
Thanx for the correction.
B.
Comment
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Re: + and & operators
Excellent Answer.
Short, sweet, and most important a simple example.
I didnt know why either, till i seen this post.
Miro
- Learning VB Net
"Ted Harrison" <ted@ntsx.co.uk > wrote in message
news:memo.20060 629131952.384B@ ed.eddy.ed...[color=blue]
> On Thu, 29 Jun 2006 13:51:07 +0200 Domac <dd@dd.cc> wrote:
>[color=green]
>> *From:* "Domac" <dd@dd.cc>
>> *Date:* Thu, 29 Jun 2006 13:51:07 +0200
>>
>> What is the difference between "+" and "&" operator when joining
>> strings?
>>[/color]
>
> Not much difference when joining two real strings.
> "aaa" + "bbb" would give the same result as "aaa" & "bbb" i.e. "aaabbb"
>
> However, if one expression is a number and one a string then things are
> less clear...
>
> "5" + 10 will give the number 15. The "5" is converted to a number "on the
> fly".
>
> Whereas "5" & 10 will give the string "510". The 10 is converted to a
> string "on the fly".
>
> + should really only be used to add numbers, and & should be used to
> concatenate strings.
>[/color]
Comment
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Re: + and & operators
Brian Tkatch wrote:[color=blue]
> Dick Sutton wrote:[color=green]
>> I use &= in assignment statements all the time. For example:
>>
>> strHTML &= MonthName(CInt( sMonth), False) & " - " & sYear &
>> "</h3></center><br>"
>>
>> Hope this helps...
>>
>> Dick
>>
>> "Brian Tkatch" <Maxwell_Smart@ ThePentagon.com > wrote in message
>> news:1151593333 .087137.67580@b 68g2000cwa.goog legroups.com...[color=darkred]
>>> Phill W. wrote:
>>>> Domac wrote:
>>>>> What is the difference between "+" and "&" operator when joining
>>>>> strings?
>>>> With "Option Strict On" - none at all.
>>>>
>>>> With "Option Strict Off" and joining only Strings - none at all.
>>>>
>>>> With "Option Strict Off" and joining Strings and /other/ data types -
>>>> the effects can be "interestin g" ...
>>>>
>>>> HTH,
>>>> Phill W.
>>> Except that you can do += but not &=.
>>>
>>> B.
>>>[/color][/color]
>
> OK, i see, my mistake. Thanks for the correction.
>
> I quickly tested it out by opening a module and typing:
>
> Sub a()
> Dim a As String
> a+=a
> a&=a
> End Sub
>
> The editor separated a+=a into a += a, but it separated a&=a to a& = a
> and underlined a& as an error. Which i assumed (incorrectly) that &=
> was not supported.
>
> So, perhaps a difference is whether the editor put in that space before
> the operator. With = is does, with & it does not. Well, nothing too
> important. :)
>
> Thanx for the correction.
>
> B.
>[/color]
That is Basic Baggage. The & character once had a meaning at the end of
a variable name. The interpreter still recognises this, but it doesn't
work any more.
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Re: + and & operators
i dont know about myvar& not working but myvar% still does,
it still documented as working too
guy
"Göran Andersson" wrote:
[color=blue]
> Brian Tkatch wrote:[color=green]
> > Dick Sutton wrote:[color=darkred]
> >> I use &= in assignment statements all the time. For example:
> >>
> >> strHTML &= MonthName(CInt( sMonth), False) & " - " & sYear &
> >> "</h3></center><br>"
> >>
> >> Hope this helps...
> >>
> >> Dick
> >>
> >> "Brian Tkatch" <Maxwell_Smart@ ThePentagon.com > wrote in message
> >> news:1151593333 .087137.67580@b 68g2000cwa.goog legroups.com...
> >>> Phill W. wrote:
> >>>> Domac wrote:
> >>>>> What is the difference between "+" and "&" operator when joining
> >>>>> strings?
> >>>> With "Option Strict On" - none at all.
> >>>>
> >>>> With "Option Strict Off" and joining only Strings - none at all.
> >>>>
> >>>> With "Option Strict Off" and joining Strings and /other/ data types -
> >>>> the effects can be "interestin g" ...
> >>>>
> >>>> HTH,
> >>>> Phill W.
> >>> Except that you can do += but not &=.
> >>>
> >>> B.
> >>>[/color]
> >
> > OK, i see, my mistake. Thanks for the correction.
> >
> > I quickly tested it out by opening a module and typing:
> >
> > Sub a()
> > Dim a As String
> > a+=a
> > a&=a
> > End Sub
> >
> > The editor separated a+=a into a += a, but it separated a&=a to a& = a
> > and underlined a& as an error. Which i assumed (incorrectly) that &=
> > was not supported.
> >
> > So, perhaps a difference is whether the editor put in that space before
> > the operator. With = is does, with & it does not. Well, nothing too
> > important. :)
> >
> > Thanx for the correction.
> >
> > B.
> >[/color]
>
> That is Basic Baggage. The & character once had a meaning at the end of
> a variable name. The interpreter still recognises this, but it doesn't
> work any more.
>[/color]
Comment
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Re: + and & operators
Göran
| That is Basic Baggage. The & character once had a meaning at the end of
| a variable name. The interpreter still recognises this, but it doesn't
| work any more.
As Guy suggests whatever& still works in both .NET 1.x & .NET 2.0.
For example:
Dim whatever&
is short hand for:
Dim whatever As Long
For details see:
http://msdn2.microsoft.com/en-us/library/s9cz43ek.aspx
However I don't recommend using it, as only a very small subset of types are
supported...
--
Hope this helps
Jay B. Harlow [MVP - Outlook]
..NET Application Architect, Enthusiast, & Evangelist
T.S. Bradley - http://www.tsbradley.net
"Göran Andersson" <guffa@guffa.co m> wrote in message
news:%23DGmuV9m GHA.3544@TK2MSF TNGP05.phx.gbl. ..
| Brian Tkatch wrote:
| > Dick Sutton wrote:
| >> I use &= in assignment statements all the time. For example:
| >>
| >> strHTML &= MonthName(CInt( sMonth), False) & " - " & sYear &
| >> "</h3></center><br>"
| >>
| >> Hope this helps...
| >>
| >> Dick
| >>
| >> "Brian Tkatch" <Maxwell_Smart@ ThePentagon.com > wrote in message
| >> news:1151593333 .087137.67580@b 68g2000cwa.goog legroups.com...
| >>> Phill W. wrote:
| >>>> Domac wrote:
| >>>>> What is the difference between "+" and "&" operator when joining
| >>>>> strings?
| >>>> With "Option Strict On" - none at all.
| >>>>
| >>>> With "Option Strict Off" and joining only Strings - none at all.
| >>>>
| >>>> With "Option Strict Off" and joining Strings and /other/ data types -
| >>>> the effects can be "interestin g" ...
| >>>>
| >>>> HTH,
| >>>> Phill W.
| >>> Except that you can do += but not &=.
| >>>
| >>> B.
| >>>
| >
| > OK, i see, my mistake. Thanks for the correction.
| >
| > I quickly tested it out by opening a module and typing:
| >
| > Sub a()
| > Dim a As String
| > a+=a
| > a&=a
| > End Sub
| >
| > The editor separated a+=a into a += a, but it separated a&=a to a& = a
| > and underlined a& as an error. Which i assumed (incorrectly) that &=
| > was not supported.
| >
| > So, perhaps a difference is whether the editor put in that space before
| > the operator. With = is does, with & it does not. Well, nothing too
| > important. :)
| >
| > Thanx for the correction.
| >
| > B.
| >
|
| That is Basic Baggage. The & character once had a meaning at the end of
| a variable name. The interpreter still recognises this, but it doesn't
| work any more.
Comment
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Re: + and & operators
Jay B. Harlow [MVP - Outlook] wrote:Oh, so it still works, even?Göran
| That is Basic Baggage. The & character once had a meaning at the end of
| a variable name. The interpreter still recognises this, but it doesn't
| work any more.
As Guy suggests whatever& still works in both .NET 1.x & .NET 2.0.
>
For example:
>
Dim whatever&
>
is short hand for:
>
Dim whatever As Long
>
For details see:
>
http://msdn2.microsoft.com/en-us/library/s9cz43ek.aspx
>
However I don't recommend using it, as only a very small subset of types are
supported...
>
Why didn't they get rid of that? They had the chance when they created
VB.NET, now it's gonna haunt the VB language for ever...
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Comment