我是Ruby的新手,想要了解下面这段代码。
当我有一个包含字符串的数组时,使用max函数进行操作:
names = ["aa", "bb", "cc"]
names.max = "cc"
如果我在这里有哈希,
calendar["January", :cold, "February", :colder]
calendar.max = ["January", :cold]
我无法理解它是最长的字大小还是显示最大索引大小的成员。谁能解释一下这种行为?我错过了一些非常基本的东西吗?
答案 0 :(得分:4)
通过比较相应位置的元素来对数组进行排序。字符串按字典顺序排序。 "J"
比"F"
“更大”,因此,["January", :cold]
大于["February", :colder]
,无论字符串长度和剩余数组元素如何。
months = %w[january february march april may june july august september october november december]
months.sort.join(', ') # => "april, august, december, february, january, july, june, march, may, november, october, september"