split array in js. Ex: [1,2,3,4,5,6,7] by 2 transform to [[1,2], [3,4], [5,6], [7]]

split.coffee

split = (array, numberOf) ->
  matrix = []
  indice = 0
  aux = -1

  while indice < array.length
    if indice % numberOf is 0
      aux++
      matrix[aux] = []
    matrix[aux].push array[indice]
    indice++
  matrix