javascript - 使用 for 循环将数字插入数组。 (求给定数的GCF)

Question

我正在尝试查找我传递到函数中的任何数字的 GCF。当我向存储阵列发出警报时，我得到的只是 0。

为什么我的存储数组中唯一的值是 0？即使循环运行了 12 次，为什么我的值没有被推送到存储数组中？

let gcf = num => {
  let storage = [];
  for (let i = 0; i <= num; i++) {
    // if it divides evenly into num, it is a factor and we want to push it
    // into an array
    if (i % num == 0) {
      storage.push(i);
    } else {
      continue;
    }
  }
  // will sort the array from highest to lowest 
  storage = storage.sort((a, b) => {
    return b - a;
  })
  alert(storage[0]);
  // and return storage[0] for the gcf
}

gcf(12);

Answer 1

你的模运算符是倒退的;)

let gcf = num => {
  let storage = [];
  for (let i = 0; i <= num; i++) {
    // if it divides evenly into num, it is a factor and we want to push it
    // into an array
    if (num % i == 0) {
      storage.push(i);
    } else {
      continue;
    }
  }
  // will sort the array from highest to lowest 
  storage = storage.sort((a, b) => {
    return a - b;
  })
  alert(storage[0]);
  // and return storage[0] for the gcf
}

gcf(12);