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

<t>PowerShell: How do I convert an array object to a string in PowerShell?</t>

<t>$a = 'This', 'Is', 'a', 'cat' ``` Using double quotes (and optionally use the separator$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 '-'

-join $a 
 
``` 
 
Using conversion to [string] 
 
`# This Is a cat 
[string]$a

$ofs = '-' 
[string]$a 
 
```</t>