从列表中获取最新和最早的日期 - Ruby

I have an array of Ruby Date objects. How can I find the newest datetime and the oldest datetime?

我有一组Ruby Date对象。如何找到最新的日期时间和最早的日期时间？

3 个解决方案

#1

date_array.min # => Oldest
date_array.max # => Most recent

#2

oldest, newest =  date_array.minmax

#3

You have a comparison operator:

你有一个比较运算符：

http://www.ruby-doc.org/core/classes/Date.html#M000673

http://www.ruby-doc.org/core/classes/Date.html#M000673

Sort it.

把它分类。