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# Flatten Array Take a nested list and return a single flattened list with all values except nil/null. The challenge is to write a function that accepts an arbitrarily-deep nested list-like structure and returns a flattened structure without any nil/null values. For Example input: [1,[2,3,null,4],[null],5] output: [1,2,3,4,5] ## Resources Remember to check out the Perl 6 [documentation](https://docs.perl6.org/) and [resources](https://perl6.org/resources/) pages for information, tips, and examples if you get stuck. ## Running the tests There is a test suite and module included with the exercise. The test suite (a file with the extension `.t`) will attempt to run routines from the module (a file with the extension `.pm6`). Add/modify routines in the module so that the tests will pass! You can view the test data by executing the command `perl6 --doc *.t` (\* being the name of the test suite), and run the test suite for the exercise by executing the command `prove . --exec=perl6` in the exercise directory. You can also add the `-v` flag e.g. `prove . --exec=perl6 -v` to display all tests, including any optional tests marked as 'TODO'. ## Source Interview Question [https://reference.wolfram.com/language/ref/Flatten.html](https://reference.wolfram.com/language/ref/Flatten.html) ## Submitting Incomplete Solutions It's possible to submit an incomplete solution so you can see how others have completed the exercise.
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128 entries across 128 versions & 1 rubygems