use A from commandline in if

[_pi]

why does value == "destroy" not work ?

Code:

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function [$arg1] [$value]
str v = value

act win(mouse)
if (value == "destroy"); ja
if (v == "destroy"); ja    

;clo+
out _s.format("%s = %s" arg1 value)

and what exactly is _s ?

thanks