Description could be interpretted as one line of code or one line in the answer. Please adjust description to specify one line of code.
Although it's been raised before, but the Ruby restriction of using flat_map is neither necessary, nor is it properly checked: see this solution
flat_map
JS : expected/actual are swapped at some places in the test suite (I don't know where exactly, see message just below)
Description could be interpretted as one line of code or one line in the answer. Please adjust description to specify one line of code.
Although it's been raised before, but the Ruby restriction of using
flat_mapis neither necessary, nor is it properly checked: see this solutionJS : expected/actual are swapped at some places in the test suite (I don't know where exactly, see message just below)