map() normally returns a list. However, if the result is being assigned to a scalar, it returns a count. See perldoc -f map

In reply to Re: Unexpected results when removing a HERE-DOC "ending" newline, with map and/or s/// depending on context. by fglock
in thread Unexpected results when removing a HERE-DOC "ending" newline, with map and/or s/// depending on context. by olivierp

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