Array of arrays with headers to array of hashes(and then JSON)

Question

How can I convert array of arrays (CSV-liks with headers) to an array of hashes ?

headers = [['foo', 'bar', 'baz']]
data = [[1,2,3], [4,5,6], [7,8,9]...]
arr_of_arrs = headers + data

arr_of_arrs_to_structured_hash

expected output be like

[
 {foo: 1, bar: 2, baz: 3}
 {foo: 4, bar: 5, baz: 6}
 {foo: 7, bar: 8, baz: 9}
]

EDIT : sorry I just realized my output wasn't clear. Basically the data ara array of rows just like in CSV (except my data isn't coming from a CSV)

Answer 1

headers = [['foo', 'bar', 'baz']]
data = [[1,2,3], [2,3,4]]

data.map(&headers.first.method(:zip)).map(&:to_h)
#⇒ [
#  [0] {
#    "foo" => 1
#    "bar" => 2,
#    "baz" => 3,
#  },
#  [1] {
#    "foo" => 2
#    "bar" => 3,
#    "baz" => 4,
#  }
# ]