Vista - initialize array

Hi all,
How can I initialize array before use him, before insert values to
cells ?
Thanks,
Didi

If I understand you correctly then this should work.
$array = @()

"Did" <didi10000@walla.co.il> wrote in message
news:1187620498.691958.85170@19g2000hsx.googlegroups.com...
> Hi all,
> How can I initialize array before use him, before insert values to
> cells ?
> Thanks,
> Didi
>

Did wrote:
> Hi all,
> How can I initialize array before use him, before insert values to
> cells ?
> Thanks,
> Didi
>

See my first line below:

PSH> $a=@()
PSH> $a.gettype()

IsPublic IsSerial Name BaseType
-------- -------- ---- --------
True True Object[] System.Array

That's one way...


Marco

--
----------------
PowerGadgets MVP
http://www.powergadgets.com/mvp

Blog:
http://marcoshaw.blogspot.com

On Aug 20, 4:43 pm, "Brandon Shell" <tshell.m...@gmail.com> wrote:
> If I understand you correctly then this should work.
> $array = @()
>
> "Did" <didi10...@walla.co.il> wrote in message
>
> news:1187620498.691958.85170@19g2000hsx.googlegroups.com...
>
> > Hi all,
> > How can I initialize array before use him, before insert values to
> > cells ?
> > Thanks,
> > Didi

Hi,
I want to insert the value of $i to each cell in the array, I got the
error:
"Array assignment failed because index '0' was out of range"

If I want trying to understand the message, while I want to insert the
value of $i to cell 0, the shell doesn't found the index 0, maybe
doesn't know I using array !

$arr=@()

for ( $i = 0 ; $i -lt 3; $i++ )
{
$arr[$i] = $i
}
write-host $arr


This script with no error because probably I initialized the array:

$arr= "dd","dd","dd"

for ( $i = 0 ; $i -lt 3; $i++ )
{
$arr[$i] = $i
}

write-host $arr

Any help ?
Thanks...

Try

$arr=@()

for ( $i = 0 ; $i -lt 3; $i++ )
{
$arr[$i] += $i
}
write-host $arr

This will add the value as well as extent the array. If you want to
predefine the array you can do something like
$array = @(1..100) # This will make an array of 100 but it will have values
in each element.

"Did" <didi10000@walla.co.il> wrote in message
news:1187625216.058486.26150@r29g2000hsg.googlegroups.com...
> On Aug 20, 4:43 pm, "Brandon Shell" <tshell.m...@gmail.com> wrote:
>> If I understand you correctly then this should work.
>> $array = @()
>>
>> "Did" <didi10...@walla.co.il> wrote in message
>>
>> news:1187620498.691958.85170@19g2000hsx.googlegroups.com...
>>
>> > Hi all,
>> > How can I initialize array before use him, before insert values to
>> > cells ?
>> > Thanks,
>> > Didi
>
> Hi,
> I want to insert the value of $i to each cell in the array, I got the
> error:
> "Array assignment failed because index '0' was out of range"
>
> If I want trying to understand the message, while I want to insert the
> value of $i to cell 0, the shell doesn't found the index 0, maybe
> doesn't know I using array !
>
> $arr=@()
>
> for ( $i = 0 ; $i -lt 3; $i++ )
> {
> $arr[$i] = $i
> }
> write-host $arr
>
>
> This script with no error because probably I initialized the array:
>
> $arr= "dd","dd","dd"
>
> for ( $i = 0 ; $i -lt 3; $i++ )
> {
> $arr[$i] = $i
> }
>
> write-host $arr
>
> Any help ?
> Thanks...
>

This is for dynamic array. if you know the type and length of array you
should able to declare array beforehand

new-object int[] 3

"Brandon Shell" <tshell.mask@gmail.com> wrote in message
news:%23RjqtP04HHA.5852@TK2MSFTNGP02.phx.gbl...
> Try
>
> $arr=@()
>
> for ( $i = 0 ; $i -lt 3; $i++ )
> {
> $arr[$i] += $i
> }
> write-host $arr
>
> This will add the value as well as extent the array. If you want to
> predefine the array you can do something like
> $array = @(1..100) # This will make an array of 100 but it will have
> values in each element.
>
> "Did" <didi10000@walla.co.il> wrote in message
> news:1187625216.058486.26150@r29g2000hsg.googlegroups.com...
>> On Aug 20, 4:43 pm, "Brandon Shell" <tshell.m...@gmail.com> wrote:
>>> If I understand you correctly then this should work.
>>> $array = @()
>>>
>>> "Did" <didi10...@walla.co.il> wrote in message
>>>
>>> news:1187620498.691958.85170@19g2000hsx.googlegroups.com...
>>>
>>> > Hi all,
>>> > How can I initialize array before use him, before insert values to
>>> > cells ?
>>> > Thanks,
>>> > Didi
>>
>> Hi,
>> I want to insert the value of $i to each cell in the array, I got the
>> error:
>> "Array assignment failed because index '0' was out of range"
>>
>> If I want trying to understand the message, while I want to insert the
>> value of $i to cell 0, the shell doesn't found the index 0, maybe
>> doesn't know I using array !
>>
>> $arr=@()
>>
>> for ( $i = 0 ; $i -lt 3; $i++ )
>> {
>> $arr[$i] = $i
>> }
>> write-host $arr
>>
>>
>> This script with no error because probably I initialized the array:
>>
>> $arr= "dd","dd","dd"
>>
>> for ( $i = 0 ; $i -lt 3; $i++ )
>> {
>> $arr[$i] = $i
>> }
>>
>> write-host $arr
>>
>> Any help ?
>> Thanks...
>>
>

He is correct, but be careful if you use int[] you can only put integers in
the array.

Integers do int[]
Strings do string[]
Bytes do byte[]


"x3shell" <xshell@gmail.com> wrote in message
news:%23PHhGd04HHA.4436@TK2MSFTNGP03.phx.gbl...
> This is for dynamic array. if you know the type and length of array you
> should able to declare array beforehand
>
> new-object int[] 3
>
> "Brandon Shell" <tshell.mask@gmail.com> wrote in message
> news:%23RjqtP04HHA.5852@TK2MSFTNGP02.phx.gbl...
>> Try
>>
>> $arr=@()
>>
>> for ( $i = 0 ; $i -lt 3; $i++ )
>> {
>> $arr[$i] += $i
>> }
>> write-host $arr
>>
>> This will add the value as well as extent the array. If you want to
>> predefine the array you can do something like
>> $array = @(1..100) # This will make an array of 100 but it will have
>> values in each element.
>>
>> "Did" <didi10000@walla.co.il> wrote in message
>> news:1187625216.058486.26150@r29g2000hsg.googlegroups.com...
>>> On Aug 20, 4:43 pm, "Brandon Shell" <tshell.m...@gmail.com> wrote:
>>>> If I understand you correctly then this should work.
>>>> $array = @()
>>>>
>>>> "Did" <didi10...@walla.co.il> wrote in message
>>>>
>>>> news:1187620498.691958.85170@19g2000hsx.googlegroups.com...
>>>>
>>>> > Hi all,
>>>> > How can I initialize array before use him, before insert values to
>>>> > cells ?
>>>> > Thanks,
>>>> > Didi
>>>
>>> Hi,
>>> I want to insert the value of $i to each cell in the array, I got the
>>> error:
>>> "Array assignment failed because index '0' was out of range"
>>>
>>> If I want trying to understand the message, while I want to insert the
>>> value of $i to cell 0, the shell doesn't found the index 0, maybe
>>> doesn't know I using array !
>>>
>>> $arr=@()
>>>
>>> for ( $i = 0 ; $i -lt 3; $i++ )
>>> {
>>> $arr[$i] = $i
>>> }
>>> write-host $arr
>>>
>>>
>>> This script with no error because probably I initialized the array:
>>>
>>> $arr= "dd","dd","dd"
>>>
>>> for ( $i = 0 ; $i -lt 3; $i++ )
>>> {
>>> $arr[$i] = $i
>>> }
>>>
>>> write-host $arr
>>>
>>> Any help ?
>>> Thanks...
>>>
>>
>

On Aug 20, 6:53 pm, "Brandon Shell" <tshell.m...@gmail.com> wrote:
> He is correct, but be careful if you use int[] you can only put integers in
> the array.
>
> Integers do int[]
> Strings do string[]
> Bytes do byte[]
>
> "x3shell" <xsh...@gmail.com> wrote in message
>
> news:%23PHhGd04HHA.4436@TK2MSFTNGP03.phx.gbl...
>
> > This is for dynamic array. if you know the type and length of array you
> > should able to declare array beforehand
>
> > new-object int[] 3
>
> > "Brandon Shell" <tshell.m...@gmail.com> wrote in message
> >news:%23RjqtP04HHA.5852@TK2MSFTNGP02.phx.gbl...
> >> Try
>
> >> $arr=@()
>
> >> for ( $i = 0 ; $i -lt 3; $i++ )
> >> {
> >> $arr[$i] += $i
> >> }
> >> write-host $arr
>
> >> This will add the value as well as extent the array. If you want to
> >> predefine the array you can do something like
> >> $array = @(1..100) # This will make an array of 100 but it will have
> >> values in each element.
>
> >> "Did" <didi10...@walla.co.il> wrote in message
> >>news:1187625216.058486.26150@r29g2000hsg.googlegroups.com...
> >>> On Aug 20, 4:43 pm, "Brandon Shell" <tshell.m...@gmail.com> wrote:
> >>>> If I understand you correctly then this should work.
> >>>> $array = @()
>
> >>>> "Did" <didi10...@walla.co.il> wrote in message
>
> >>>>news:1187620498.691958.85170@19g2000hsx.googlegroups.com...
>
> >>>> > Hi all,
> >>>> > How can I initialize array before use him, before insert values to
> >>>> > cells ?
> >>>> > Thanks,
> >>>> > Didi
>
> >>> Hi,
> >>> I want to insert the value of $i to each cell in the array, I got the
> >>> error:
> >>> "Array assignment failed because index '0' was out of range"
>
> >>> If I want trying to understand the message, while I want to insert the
> >>> value of $i to cell 0, the shell doesn't found the index 0, maybe
> >>> doesn't know I using array !
>
> >>> $arr=@()
>
> >>> for ( $i = 0 ; $i -lt 3; $i++ )
> >>> {
> >>> $arr[$i] = $i
> >>> }
> >>> write-host $arr
>
> >>> This script with no error because probably I initialized the array:
>
> >>> $arr= "dd","dd","dd"
>
> >>> for ( $i = 0 ; $i -lt 3; $i++ )
> >>> {
> >>> $arr[$i] = $i
> >>> }
>
> >>> write-host $arr
>
> >>> Any help ?
> >>> Thanks...


Well done !
Thanks two of u !

"Brandon Shell" wrote:

> He is correct, but be careful if you use int[] you can only put integers in
> the array.
>
> Integers do int[]
> Strings do string[]
> Bytes do byte[]

and:

Objects do object[]

:-)

--
greetings
dreeschkind

The correct way to dynamically create an array is as follows (PowerShell will
expand to the size required). You use the index notation as in $arr[$i] only
when the individual items already exist in order to access / change them.

HTH!


PS > $arr=@()
PS > for ( $i = 0 ; $i -lt 3; $i++ ) { $arr += $i }

PS > $arr.length
3

PS > $arr.gettype().fullname
System.Object[]

PS > $arr
0
1
2

PS > for ( $i = 0 ; $i -lt 3; $i++ ) { $arr[$i] }
0
1
2

PS > $j = 10; for ( $i = 0 ; $i -lt $arr.length; $i++ ) { $arr[$i] = $j*$i }
PS > $arr
0
10
20

--
............... All new, all fresh ..............
http://www.leedesmond.com/weblog/



"Did" wrote:

> On Aug 20, 4:43 pm, "Brandon Shell" <tshell.m...@gmail.com> wrote:
> > If I understand you correctly then this should work.
> > $array = @()
> >
> > "Did" <didi10...@walla.co.il> wrote in message
> >
> > news:1187620498.691958.85170@19g2000hsx.googlegroups.com...
> >
> > > Hi all,
> > > How can I initialize array before use him, before insert values to
> > > cells ?
> > > Thanks,
> > > Didi
>
> Hi,
> I want to insert the value of $i to each cell in the array, I got the
> error:
> "Array assignment failed because index '0' was out of range"
>
> If I want trying to understand the message, while I want to insert the
> value of $i to cell 0, the shell doesn't found the index 0, maybe
> doesn't know I using array !
>
> $arr=@()
>
> for ( $i = 0 ; $i -lt 3; $i++ )
> {
> $arr[$i] = $i
> }
> write-host $arr
>
>
> This script with no error because probably I initialized the array:
>
> $arr= "dd","dd","dd"
>
> for ( $i = 0 ; $i -lt 3; $i++ )
> {
> $arr[$i] = $i
> }
>
> write-host $arr
>
> Any help ?
> Thanks...
>
>