如何将1个值从输入框除以10另一个输入框除以10而不四舍五入

Question

我正在制作一个表格来将产品输入仓库，所以，我想要的条件是：

When I type and enter a value in Quantity box (Blue circle), I want that value shown to another 10 input boxes pallet list (red circle), But it has to be 69 Pcs in each box ( 69 is only total that actually fit on the pallet in real warehouse ) and if it still have rest, put the last rest in the last box. This is the illustration that might help :

说，我生产了 630 PCS 件，当我把 630 放入数量框时，应该显示 69PCS在每个pallet list中，69直到不能再分割为止。剩下的分界线，必须放在最后一个盒子上。

示例：

Quantity : 630 PCS

Pallet 1: 69

Pallet 2: 69

Pallet 3: 69

Pallet 4: 69

Pallet 5: 69

Pallet 6: 69

Pallet 7: 69

Pallet 8: 69

Pallet 9: 69

Pallet 10: 9 (The rest have to be on the last pallet)

有人可以帮助我吗？谢谢你，Terima Kasih。

Answer 1

let input = 630
let arr = []
for(let i=0;i<9;i++){
    arr.push(0)
    if(input>=69){
        arr.push(69)
        input-=69
    }
}
arr.push(input)

不知道是不是你想要的

Answer 2

您需要模运算和整数除法。 JavaScript 中的 % 运算符可以很好地作为正数的模数。对于这个特定问题，您不需要对负数进行正确的模运算。整数除法是有底正态除法。 Math 对象提供了一个 floor 方法。

var
  byId     = document.getElementById.bind(document),
  intVal   = id => parseInt(byId(id).value),
  onChange = ev =>
  {
    let
      qty  = intVal('quantity'),
      ppb  = intVal('peaces-per-box'),
      rest = qty % ppb,
      html = ''
    ;
    if(!qty || !ppb)
      return byId('pallets').innerHTML = '';

    for (var c = Math.floor(qty / ppb), i = 0; i < c; i++)
      html += `<div></div><lable for="pallet-${i}"></lable> <input id="pallet-${i}" value="${ppb}"></div>\n`;
    if(rest)
      html += `<div></div><lable for="pallet-${i}"></lable> <input id="pallet-${i}" value="${rest}"><div></div>\n`;
    byId('pallets').innerHTML = html;
  }
;
byId('quantity'      ).addEventListener('change', onChange);
byId('peaces-per-box').addEventListener('change', onChange);
onChange();

<!DOCTYPE html>
<head>
  <meta charset="UTF-8">
  <title>Quantities</title>

<body>
  <form>
    <div>
      <lable for="quantity">quantity</lable>
      <input id="quantity" type="number" min="0" step="1" placeholder="enter quantity">
    </div>
    <div>
      <lable for="peaces-per-box">peaces per box</lable>
      <input id="peaces-per-box" type="number" min="1" step="1" placeholder="enter max. peaces per box">
      <div id="pallets">
      </div>
    </div>
  </form>

如何将1个值从输入框除以10另一个输入框除以10而不四舍五入

How to Divide 1 value from input box to 10 another input box divided by 10 without rounding

javascript

jquery

warehouse

divide