Question

How to create an empty array named by variable and use it only by referring to it thru the variable name?

e.g. array named empty

$empty = @()

$empty -is [array]
True

versus:

$arrayname='empty'
${$arrayname}=@()

$empty -is [array]
False

AND

$empty+='hello'

versus

${$arrayname}+='hello'

Answer 1

maybe you want this:

$arrayname='empty'

$empty -is [array]
False

Invoke-Expression  "`$$arrayname = @()"

$empty -is [array]
True