Multiplication tables: Difference between revisions

=={{header|CoffeeScript}}==

<lang coffeescript>

pad = (s, n=4, c=' ') ->

s = s.toString()

result = ''

padding = n - s.length

while result.length < padding

result += c

result + s

print_multiplication_tables = (n) ->

width = 4

s = pad('') + '|'

for i in [1..n]

s += pad i

console.log s

s = pad('', width, '-') + '+'

for i in [1..n]

s += pad '', width, '-'

console.log s

for i in [1..n]

s = pad i

s += '|'

s += pad '', width*(i - 1)

for j in [i..n]

s += pad i*j

console.log s

print_multiplication_tables 12

</lang>

output

<lang>

> coffee multiply.coffee

| 1 2 3 4 5 6 7 8 9 10 11 12

----+------------------------------------------------

1| 1 2 3 4 5 6 7 8 9 10 11 12

2| 4 6 8 10 12 14 16 18 20 22 24

3| 9 12 15 18 21 24 27 30 33 36

4| 16 20 24 28 32 36 40 44 48

5| 25 30 35 40 45 50 55 60

6| 36 42 48 54 60 66 72

7| 49 56 63 70 77 84

8| 64 72 80 88 96

9| 81 90 99 108

10| 100 110 120

11| 121 132

12| 144

</lang>