Easily index a list with `for` command

In addition to the other requests to more easily iterate through the index of an object list:

• #14724 implement indexer in loop
• #13772 Automatic variable for the pipeline index

There are currently common ways to iterate through the index of an object list:

$List = @(
    [pscustomobject]@{Name = 'One';   Value = 1}
    [pscustomobject]@{Name = 'Two';   Value = 2}
    [pscustomobject]@{Name = 'Three'; Value = 3}
)

For ($i = 0; $i -lt $List.Count; $i++) {
    Write-Host $List[$i].Name '=' $List[$i].Value
}

0..($List.Count - 1) |ForEach-Object {
    Write-Host $List[$_].Name '=' $List[$_].Value
}

Knowing that the For command generates an error when no parenthesis are used:

PS C:\> For $Test
ParserError:
Line |
   1 |  For $Test
     |     ~
     | Missing opening '(' after keyword 'for'.

It might might just generate a (new) index if a object (list) is supplied.

Wishful thinking:

For $List {
    Write-Host $List[$_].Name '=' $List[$_].Value
}

Or using the pipeline:

$List |For {
    Write-Host $List[$_].Name '=' $List[$_].Value
}

Caveat: As with the ForEach-Object, it might be required to force the input to an array: @($List) |For { ...

[mklement0]

@iRon7, it seem to me that your expanded example - processing the corresponding elements from two (or more) collections - is more elegantly handled by the proposal in #14732; e.g.:

# Wishful thinking.
foreach ($en, $nl in $List, $Dutch) {
    [PSCustomObject] @{
        Number  = $en.Value
        English = $en.Name
        Dutch   = $nl.Name
    }
}

And since #14732 can be combined with #14724, you could easily add an index with foreach ($en, $nl in $List, $Dutch; $i) ...

[daxian-dbw]

@iRon7 when it comes to a new command proposal, the guidance we have is that the proposed command could be shipped as a module by the community member. Once the use of that command is proven to be popular, we can start the conversation about whether it should be included in powershell by default.