divide number with decimals javascript

Question

how can I divide number (money) to x number equally the number could be with one or two decimal or without it

such as 1000 or 100.2 or

Answer 1

There is an issue on @user633183's distribute but only happen when the divider is lower than 3.

distribute(2, 2, 560.3)
// [ '280.15' , '280.14']

distribute(2, 1, 74.10)
// [ '74.09' ]

distribute(2, 1, 74.60)
// [ '74.59' ]

I rewrote the answer by Guffa into javascript

const distribute = (precision, divider, numerator) => {
const arr = [];
  while (divider > 0) {
    let amount = Math.round((numerator / divider) * Math.pow(10, precision)) / Math.pow(10, precision);
    arr.push(amount);
    numerator -= amount;
    divider--;
  }
  return arr.sort((a, b) => b-a);
};

Here are the results

distribute(0, 7, 100)
=> [ 15, 15, 14, 14, 14, 14, 14 ]

distribute(1, 7, 100)
=> [ 14.3, 14.3, 14.3, 14.3, 14.3, 14.3, 14.2 ]

distribute(2, 7, 100)
=> [ 14.29, 14.29, 14.29, 14.29, 14.28, 14.28, 14.28 ]

distribute(3, 7, 100)
=> [ 14.286, 14.286, 14.286, 14.286, 14.286, 14.285, 14.285 ]

distribute(4, 7, 100)
=> [ 14.2858, 14.2857, 14.2857, 14.2857, 14.2857, 14.2857, 14.2857 ]

// and of course

distribute(2, 2, 560.3)
=> [ 280.15, 280.15 ]

distribute(2, 1, 74.10)
=> [ 74.1 ]

distribute(2, 1, 74.60)
=> [ 74.6 ]