PowerShell: How do I convert an array object to a string in PowerShell?

powershell powershell-2.0

$a = 'This', 'Is', 'a', 'cat'

Using double quotes (and optionally use the separator $ofs)

# This Is a cat"$a"# This-Is-a-cat$ofs = '-' # after this all casts work this way until $ofs changes!"$a"

Using operator join

# This-Is-a-cat$a -join '-'# ThisIsacat-join $a

Using conversion to [string]

# This Is a cat[string]$a# This-Is-a-cat$ofs = '-'[string]$a

powershell powershell-2.0

I found that piping the array to the Out-String cmdlet works well too.

For example:

PS C:\> $a  | out-stringThisIsacat

It depends on your end goal as to which method is the best to use.

powershell powershell-2.0

1> $a = "This", "Is", "a", "cat"2> [system.String]::Join(" ", $a)

Line two performs the operation and outputs to host, but does not modify $a:

3> $a = [system.String]::Join(" ", $a)4> $aThis Is a cat5> $a.Count1

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