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scalar EXPR

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scalar EXPR
Forces EXPR to be interpreted in a scalar context and returns the value of EXPR.

    @counts = ( scalar @a, scalar @b, scalar @c );

There is no equivalent operator to force an expression to be interpolated in a list context because it's in practice never needed. If you really wanted to do so, however, you could use the construction @{[ (some expression) ]}, but usually a simple (some expression) suffices.

Source: Perl builtin functions
Copyright: Larry Wall, et al.
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