問題：
I want to know if there is a much cleaner way of doing this. 我想知道是否有更乾淨的方法可以做到這一點。 Basically, I want to pick a random element from an array of variable length. 基本上，我想從可變長度的數組中選擇一個隨機元素。 Normally, I would do it like this: 通常，我會這樣：
myArray = ["stuff", "widget", "ruby", "goodies", "java", "emerald", "etc" ]
item = myArray[rand(myarray.length)]
Is there something that is more readable / simpler to replace the second line? 有什麼更可讀/更容易替換第二行的東西嗎？ Or is that the best way to do it. 還是那是最好的方式。 I suppose you could do myArray.shuffle.first , but I only saw #shuffle a few minutes ago on SO, I haven't actually used it yet. 我想你可以做myArray.shuffle.first ，但是幾分鐘前我只在#shuffle上看到#shuffle ，我還沒有真正使用它。
解決方案：
參考一： https://en.stackoom.com/question/Ebrh參考二： https://stackoom.com/question/Ebrh