Is there anything shorter than join'',?

It depends. This: 

    $"="";"@_"

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is one character more than 
    join"",@_

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but if you have to do two joins, 
    $"="";"@a";"@b"

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is shorter than 
    join"","@a";join"","@b"

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In reply to Re^2: Golf Do-s and Don't-s by Anonymous Monk
in thread Golf Do-s and Don't-s by japhy

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