如何从其他单词列表中随机显示一个单词？ [英] How to display a word randomly from list of other words?

问题描述

$ b

  var names = [Bob，Aaron，约翰]; 
  

我将如何获得一行或多行代码，可以随机在这三个名称之间进行选择显示它？我会用math.random（）吗？

解决方案

因为你有一个名称集合而不是键值对，所以最好使用一个数组来存储你的名字而不是散列。

使用数组，您可以使用Math.floor和Math.random生成索引以在names数组中查找。

  names [Math.floor（Math.random（）* names.length）] 
  

Ok so i have an array of names like this

var names = ["Bob", "Aaron", "John"];

How would i have a line or lines of code that would randomly pick between all 3 of these names and display it? Would i use math.random()?

解决方案

Since you have a collection of names rather than key value pairs it's better to use an array to store your names rather than a hash.

With an array, you can use Math.floor and Math.random to generate an index to look up in the names array.

names[Math.floor(Math.random() * names.length)]

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