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The language has changed in that respect - arrays and hashes only interpolate into double-quoted strings if they end in a postcircumfix, that is any bracketing characters coming after an expression.
say "array: @array"; # interpolates nothing say "array: @array[]"; # interpolate all elements say "array: @array[1]"; # interpolate one element say "array: @array.sort"; # no interpolation, does not # end with something brackety say "array: @array.sort()"; # interpolates sorted array

Rakudo implements those cases according to the specification.

See also: strings, arrays, hashes, S02: Literals (scroll down)

Perl 6 - links to (nearly) everything that is Perl 6.

In reply to Re: Array interpolation in Rakudo by moritz
in thread Array interpolation in Rakudo by Anonymous Monk

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