split text into words

split.coffee

text = "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum."

split_text = (text, max_line_size=30) ->
  sum = (arr) ->
    total = 0
    for el in arr
      total += el
    total

  words = text.split(' ')
  lines = []
  current_line = []
  for word in words
    current_line_length = sum (w.length for w in current_line)
    if word.length + current_line_length > max_line_size
      lines.push current_line
      current_line = [word]
    else
      current_line.push word
  lines.push current_line if current_line.length?
  lines

console.log split_text(text)