Using nested foreach in powershell

Question

I am trying to running this by using foreach in powershell.

$var1 = @("aaa","bbb","ccc"..........)
$var2 = @("111","222","333"..........)
 foreach ($val1 in $var1) {
   echo $val1
    foreach ($val2 in $var2) {
       echo $val2
  }
}

Output of the above script is:
aaa
111
222
333
bbb
111
222
333........

But i want to print like this: 
aaa
111
bbb
222
ccc
333........

Is it possible by foreach? I already solve this problem by using for loop.

I already solved this problem by using for loop. Can you help by using foreach with condition? — Akash paul
– Akash paul, Commented Jul 30, 2021 at 16:03

Santiago Squarzon · Accepted Answer · 2021-07-30 16:04:55Z

1

$var1 = @("aaa","bbb","ccc")
$var2 = @("111","222","333")

$maxCount = [math]::Max($var1.Count,$var2.Count)

Using ForEach

foreach($z in 0..($maxCount-1))
{
    $var1[$z]
    $var2[$z]
}

Using For

for($i=0;$i -lt $maxCount;$i++)
{
    $var1[$i]
    $var2[$i]
}

answered Jul 30, 2021 at 16:04

Santiago Squarzon

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2 Comments

mklement0 Over a year ago

Nice; as an aside: I proposed enhancing PowerShell to support the following syntax (which would support an open-ended number of collections to iterate over in tandem), but it was declined: foreach ($val1, $val2 in $var1, $var2) { ... } - see GitHub issue#14732).

Santiago Squarzon Over a year ago

@mklement0 would have been a great addition actually. feels bad.

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