Question

How can I convert an array object to string?

I tried:

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

with no luck. What are different possibilities in PowerShell?

Answer 1

$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