用空格替换逗号？ Fisher-Yates 随机化

问题描述

感谢 @axtck 对 Fisher Yates 随机化的帮助，他在这里帮我将数字改为单词：

Since the shuffle functions shuffle the arrays indexes,you can just shuffle the array the same way you did but add name strings in the array.

代码现在显示一串单词，单词之间用逗号分隔，效果很好！

现在我想用空格替换逗号（例如：Histoire Chien Koala Arbre Italique Lampadaire Docteur Boulet Maison Forge Gagnant Ennui）

有人可以帮我用空格更改这些逗号吗？

谢谢

   // replace numbers with names   
const inputArray = ["Arbre","Boulet","Chien","Docteur","Ennui","Forge","Gagnant","Histoire","Italique","Koala","Lampadaire","Maison"];


//define Fisher-Yates shuffle
const fisherShuffle = function(array) {
  let currentIndex = array.length,temporaryValue,randomIndex;

  while (0 !== currentIndex) {
    randomIndex = Math.floor(Math.random() * currentIndex);
    currentIndex -= 1;

    temporaryValue = array[currentIndex];
    array[currentIndex] = array[randomIndex];
    array[randomIndex] = temporaryValue;
  }
  document.getElementById("fyresults").append(array.toString());
};

fisherShuffle(inputArray);

<p><span id="fyresults"></span></p>

解决方法

对数组调用 toString() 将返回数组的字符串表示形式，即 item1,item2,...。

如果你想以另一种方式加入数组，你可以使用数组方法join()，它需要一个分隔符字符串，在你的情况下是一个空格join(" ")。

一些例子：

const testArr = ["first","second","..."]; // example array

const arrString = testArr.toString(); // calling toString() on it
const arrJoinedX = testArr.join("X"); // joining by X
const arrJoinedSpace = testArr.join(" "); // joining by space

// logging
console.log("Array:",testArr);
console.log("Array toString():",arrString);
console.log("Array joined with X:",arrJoinedX);
console.log("Array joined with space:",arrJoinedSpace);

因此要将其应用于您的示例，您可以执行以下操作：

// replace numbers with names   
const inputArray = ["Arbre","Boulet","Chien","Docteur","Ennui","Forge","Gagnant","Histoire","Italique","Koala","Lampadaire","Maison"];


//define Fisher-Yates shuffle
const fisherShuffle = function(array) {
  let currentIndex = array.length,temporaryValue,randomIndex;

  while (0 !== currentIndex) {
    randomIndex = Math.floor(Math.random() * currentIndex);
    currentIndex -= 1;

    temporaryValue = array[currentIndex];
    array[currentIndex] = array[randomIndex];
    array[randomIndex] = temporaryValue;
  }
  
  const joinedBySpace = array.join(" "); // join by space
  document.getElementById("fyresults").append(joinedBySpace); // append to element
};

fisherShuffle(inputArray);

<p><span id="fyresults"></span></p>