Function cascadeRounding

packages/react-stately/src/table/TableUtils.ts:260–278

(flexItems: FlexItem[])

}

function cascadeRounding(flexItems: FlexItem[]): number[] {
  /*
  Given an array of floats that sum to an integer, this rounds the floats
  and returns an array of integers with the same sum.
  */

  let fpTotal = 0;
  let intTotal = 0;
  let roundedArray: number[] = [];
  flexItems.forEach(function (item) {
    let float = item.targetMainSize;
    let integer = Math.round(float + fpTotal) - intTotal;
    fpTotal += float;
    intTotal += integer;
    roundedArray.push(integer);
  });

  return roundedArray;
}