ForEach Output Experiments

ForEachOutput.ps1

# foreach pipeline without format-table

$col = 1,2,3
$col | foreach {
	write-host "Doing thing $($_)..."
	
	get-childitem C:\windows\regedit.exe
}

# Output:
# Doing thing 1...
#
#
#   Directory: C:\windows
#
#
# Mode                LastWriteTime         Length Name
# ----                -------------         ------ ----
# -a----       29/09/2017     14:41         335872 regedit.exe
# Doing thing 2...
# -a----       29/09/2017     14:41         335872 regedit.exe
# Doing thing 3...
# -a----       29/09/2017     14:41         335872 regedit.exe


################################################################################

# foreach pipeline with format-table

$col = 1,2,3
$col | foreach {
	write-host "Doing thing $($_)..."
	
	get-childitem C:\windows\regedit.exe | format-table
}

# Output:
# Doing thing 1...
# 
# 
#     Directory: C:\windows
# 
# 
# Mode                LastWriteTime         Length Name
# ----                -------------         ------ ----
# -a----       29/09/2017     14:41         335872 regedit.exe
# 
# 
# Doing thing 2...
# 
# 
#     Directory: C:\windows
# 
# 
# Mode                LastWriteTime         Length Name
# ----                -------------         ------ ----
# -a----       29/09/2017     14:41         335872 regedit.exe
# 
# 
# Doing thing 3...
# 
# 
#     Directory: C:\windows
# 
# 
# Mode                LastWriteTime         Length Name
# ----                -------------         ------ ----
# -a----       29/09/2017     14:41         335872 regedit.exe

################################################################################

# foreach method of a collection without format-table

$col = 1,2,3
$col.foreach({
	write-host "Doing thing $($_)..."
	
	get-childitem C:\windows\regedit.exe
})

# Doing thing 1...
# Doing thing 2...
# Doing thing 3...
# 
# 
#     Directory: C:\windows
# 
# 
# Mode                LastWriteTime         Length Name
# ----                -------------         ------ ----
# -a----       29/09/2017     14:41         335872 regedit.exe
# -a----       29/09/2017     14:41         335872 regedit.exe
# -a----       29/09/2017     14:41         335872 regedit.exe

################################################################################

# foreach method of a collection with format-table

$col = 1,2,3
$col.foreach({
	write-host "Doing thing $($_)..."
	
	get-childitem C:\windows\regedit.exe | format-table
})

# Doing thing 1...
# Doing thing 2...
# Doing thing 3...
# 
# 
#     Directory: C:\windows
# 
# 
# Mode                LastWriteTime         Length Name
# ----                -------------         ------ ----
# -a----       29/09/2017     14:41         335872 regedit.exe
# 
# 
# 
# 
#     Directory: C:\windows
# 
# 
# Mode                LastWriteTime         Length Name
# ----                -------------         ------ ----
# -a----       29/09/2017     14:41         335872 regedit.exe
# 
# 
# 
# 
#     Directory: C:\windows
# 
# 
# Mode                LastWriteTime         Length Name
# ----                -------------         ------ ----
# -a----       29/09/2017     14:41         335872 regedit.exe