RosettaCodeData/Task/Loops-Nested/Jq/loops-nested-2.jq

10 lines
299 B
Plaintext

# Create an array of arrays by using the items in the stream, s,
# to create successive rows, each row having at most n items.
def reshape(s; n):
reduce s as $s ({i:0, j:0, matrix: []};
.matrix[.i][.j] = $s
| if .j + 1 == n then .i += 1 | .j = 0
else .j += 1
end)
| .matrix;