Ok so i have an array of names like this
我有一个这样的名字数组
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()?
我怎么能有一行或几行代码在这三个名字之间随机选择并显示它呢?我会使用math . random()?
1 个解决方案
#1
6
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.
由于您有一组名称，而不是键值对，所以最好使用数组来存储名称，而不是散列。
With an array, you can use Math.floor and Math.random to generate an index to look up in the names array.
对于数组，您可以使用Math。地板和数学。随机生成要在名称数组中查找的索引。
names[Math.floor(Math.random() * names.length)]
#1
6
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.
由于您有一组名称，而不是键值对，所以最好使用数组来存储名称，而不是散列。
With an array, you can use Math.floor and Math.random to generate an index to look up in the names array.
对于数组，您可以使用Math。地板和数学。随机生成要在名称数组中查找的索引。
names[Math.floor(Math.random() * names.length)]