将整数分成两个（几乎）相等的部分 [英] Separate an integer into two (nearly) equal parts

问题描述

我需要将一个整数分成两个数字。有点像除以2但我只想要整数组件，例如：

I need to separate an integer into two numbers. Something like dividing by two but I only want integer components as a result, such as:

6 = 3 and 3
7 = 4 and 3

我尝试了以下内容，但我不确定它是最佳解决方案。

I tried the following, but I'm not sure its the best solution.

var number = 7;
var part1 = 0;
var part2 = 0;

if((number % 2) == 0) {
    part1 = number / 2;
    part2 = number / 2;
}
else {
    part1 = parseInt((number / 2) + 1);
    part2 = parseInt(number / 2);
}

这就是我想要的，但我认为这段代码不干净。

This does what I want, but I don't think this code is clean.

有更好的方法吗？

推荐答案

找到第一部分并从原始数字中减去它。

Just find the first part and subtract it from the original number.

var x = 7;

var p1 = Math.floor(x / 2);
var p2 = x - p1;

console.log(p1, p2);

如果 x 为奇数， p1 将收到两个加数中较小的一个。您可以通过调用 Math.ceil 来切换它。

In the case of x being odd, p1 will receive the smaller of the two addends. You can switch this around by calling Math.ceil instead.

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