ruby - 这段 Ruby 代码的含义是什么？

Question

对第二行的arr[i],arr[i+1]做了什么操作:

if arr[i] > arr[i + 1]
   arr[i], arr[i + 1] = arr[i + 1], arr[i]
   sorted = false
end

Answer 1

What operation is being done to the arr[i], arr[i+1] in the second line.

arr[i], arr[i + 1] = arr[i + 1], arr[i] 表示对数组进行值交换排序。

arr = [3,2]
i = 0
arr[i], arr[i + 1] = arr[i + 1], arr[i]
arr # => [2,3]

What's this type of ternary called?

这叫做 parallel赋值，不是三元。