68 lines
3.1 KiB
Plaintext
68 lines
3.1 KiB
Plaintext
Clear-Host
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## String creation (which is string assignment):
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Write-Host "`nString creation (which is string assignment):" -ForegroundColor Cyan
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Write-Host '[string]$s = "Hello cruel world"' -ForegroundColor Yellow
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[string]$s = "Hello cruel world"
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## String (or any variable) destruction:
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Write-Host "`nString (or any variable) destruction:" -ForegroundColor Cyan
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Write-Host 'Remove-Variable -Name s -Force' -ForegroundColor Yellow
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Remove-Variable -Name s -Force
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## Now reassign the variable:
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Write-Host "`nNow reassign the variable:" -ForegroundColor Cyan
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Write-Host '[string]$s = "Hello cruel world"' -ForegroundColor Yellow
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[string]$s = "Hello cruel world"
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Write-Host "`nString comparison -- default is case insensitive:" -ForegroundColor Cyan
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Write-Host '$s -eq "HELLO CRUEL WORLD"' -ForegroundColor Yellow
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$s -eq "HELLO CRUEL WORLD"
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Write-Host '$s -match "HELLO CRUEL WORLD"' -ForegroundColor Yellow
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$s -match "HELLO CRUEL WORLD"
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Write-Host '$s -cmatch "HELLO CRUEL WORLD"' -ForegroundColor Yellow
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$s -cmatch "HELLO CRUEL WORLD"
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## Copy a string:
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Write-Host "`nCopy a string:" -ForegroundColor Cyan
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Write-Host '$t = $s' -ForegroundColor Yellow
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$t = $s
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## Check if a string is empty:
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Write-Host "`nCheck if a string is empty:" -ForegroundColor Cyan
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Write-Host 'if ($s -eq "") {"String is empty."} else {"String = $s"}' -ForegroundColor Yellow
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if ($s -eq "") {"String is empty."} else {"String = $s"}
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## Append a byte to a string:
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Write-Host "`nAppend a byte to a string:" -ForegroundColor Cyan
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Write-Host "`$s += [char]46`n`$s" -ForegroundColor Yellow
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$s += [char]46
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$s
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## Extract (and display) substring from a string:
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Write-Host "`nExtract (and display) substring from a string:" -ForegroundColor Cyan
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Write-Host '"Is the world $($s.Substring($s.IndexOf("c"),5))?"' -ForegroundColor Yellow
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"Is the world $($s.Substring($s.IndexOf("c"),5))?"
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## Replace every occurrence of a byte (or a string) in a string with another string:
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Write-Host "`nReplace every occurrence of a byte (or a string) in a string with another string:" -ForegroundColor Cyan
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Write-Host "`$t = `$s -replace `"cruel`", `"beautiful`"`n`$t" -ForegroundColor Yellow
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$t = $s -replace "cruel", "beautiful"
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$t
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## Join strings:
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Write-Host "`nJoin strings [1]:" -ForegroundColor Cyan
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Write-Host '"Is the world $($s.Split()[1]) or $($t.Split()[1])?"' -ForegroundColor Yellow
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"Is the world $($s.Split()[1]) or $($t.Split()[1])?"
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Write-Host "`nJoin strings [2]:" -ForegroundColor Cyan
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Write-Host '"{0} or {1}... I don''t care." -f (Get-Culture).TextInfo.ToTitleCase($s.Split()[1]), $t.Split()[1]' -ForegroundColor Yellow
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"{0} or {1}... I don't care." -f (Get-Culture).TextInfo.ToTitleCase($s.Split()[1]), $t.Split()[1]
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Write-Host "`nJoin strings [3] (display an integer array using the -join operater):" -ForegroundColor Cyan
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Write-Host '1..12 -join ", "' -ForegroundColor Yellow
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1..12 -join ", "
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## Display an integer array in a tablular format:
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Write-Host "`nMore string madness... display an integer array in a tablular format:" -ForegroundColor Cyan
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Write-Host '1..12 | Format-Wide {$_.ToString().PadLeft(2)}-Column 3 -Force' -NoNewline -ForegroundColor Yellow
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1..12 | Format-Wide {$_.ToString().PadLeft(2)} -Column 3 -Force
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