Joining every two lines in Powershell output - powershell

Question

I'm attempting to combine every two lines of the output of this Powershell command:
(((Invoke-WebRequest -Uri "https://www.timeanddate.com/holidays/us/$(Get-Date -Format yyyy)").Content | sls 'id=holidays') -split '<th class="nw" >' | Out-String -Stream) -replace '<|>',',' | ForEach-Object {$_.Split(',')[10,0];}
As you can see if you run it it outputs holidays and their date for the current year like so:
New Year's Day
Jan 1
World Braille Day
Jan 4
Epiphany
Jan 6
Orthodox Christmas Day
Jan 7
International Programmers' Day
Jan 7
etc.
My goal is for the output to be:
New Year's Day Jan 1
World Braille Day Jan 4
Epiphany Jan 6
Orthodox Christmas Day Jan 7
International Programmers' Day Jan 7
etc.
Any suggestions are welcome (I would like to do this without writing output to a file during the process). Or if there is a more efficient way of doing this I'm open to that as well.

Answer 1

Use a simple for loop with a counter that increments by 2 every time:
$splitLines = (((Invoke-WebRequest -Uri "https://www.timeanddate.com/holidays/us/$(Get-Date -Format yyyy)").Content | sls 'id=holidays') -split '<th class="nw" >' | Out-String -Stream) -replace '<|>',',' | ForEach-Object {$_.Split(',')[10,0];}
for($i = 0; $i -lt $splitLines.Count; $i += 2){
$splitLines[$i,($i+1)] -join ' '
}

Answer 2

You can do something along those lines. For some reason I have to use modulus 4 here and not 2 because when I split like that it makes every second line empty.
$inputData = #"
New Year's Day
Jan 1
World Braille Day
Jan 4
Epiphany
Jan 6
Orthodox Christmas Day
Jan 7
International Programmers' Day
Jan 7
"#
$splitData = $inputData.Split([Environment]::NewLine)
# use a dot here to make the output availabe after the iteration is completed
$splitData | . {
begin {
$output = ""
$i = 0
}
process {
if(0 -eq $i % 4) {
$output += $_ + [Environment]::NewLine
}
$i = $i + 1
}
}
Write-Output $output
# New Year's Day
# World Braille Day
# Epiphany
# Orthodox Christmas Day
# International Programmers' Day
It's not perfect but it works for the given problem I would suggest tinkering with it and make it little more nice. Haven't used PowerShell in a while.