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v4.0
    v4.0

    Not

    Expression, Operand

    This expression is used to get an opposite result of <exp>, as in:

    <exp> Result
    0 1
    1 0

    Syntax:

    • Expression: !<exp>
    • Operand: expression (true, false)

    Example: find 10 cards whose balances are not 0

    find().nodes({@card && !balance}) as n
    limit 10
    return n{*}
    

    Analysis: the filter can not be put into {!@card.balance}, as the result would be returned as {!@card || !balance}'s otherwise.

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