Question

在下面的代码中，函数randomBetween生成一个随机数，函数randomBetweenAndExcluding生成另一个与第一个不同的随机数：

$(document).ready(function () {

function randomBetween (min, max) {
  var ceiling = max + 1;
  return Math.floor(Math.random() * (ceiling - min)) + min;
}

function randomBetweenAndExcluding (min, max, excluding) {
  var random;
  do {
    random = randomBetween(min, max);
  } while(random === excluding);
  return random;
}

问题：我正在尝试对其进行扩展，以便randomBetweenAndExcluding排除数组中存在的任何数字。基本上编码以下内容的部分（需要更改的部分放在星号中）：

$(document).ready(function () {

function randomBetween (min, max) {
  var ceiling = max + 1;
  return Math.floor(Math.random() * (ceiling - min)) + min;
}

function randomBetweenAndExcluding (min, max, ***[ARRAY WITH X # of ELEMENTS]******) {
  var random;
  do {
    random = randomBetween(min, max);
  } while(random === ***ANY ELEMENT WITHIN THE ARRAY****);
  return random;
}

我尝试使用indexOf和includes，但没有运气。

谢谢！

Answer 1

以下适用于我：

function randomBetween (min, max) {
  var ceiling = max + 1;
  return Math.floor(Math.random() * (ceiling - min)) + min;
}

function randomBetweenAndExcluding (min, max, array) {
  var random;
  do {
     random = randomBetween(min, max);
  } while(array.includes(random));
  return random;
}

 array = [1,2,5];
 alert(randomBetweenAndExcluding(1,5,array))

你可以在这个JSFiddle上查看：SQL Fiddle

需要修改代码，以便排除数组中存在的所有值

1 个答案: