Ruby映射在末尾附加点

Question

我有下面一行

new_records = records.map{|record| record.name.to_s.}.sort

哪个输出

# Current Output:

new_records = ["ab-12.cd.net", "de-34.fg.net"]

我怎样才能让它以.（点）结尾？

# Desired Output:

new_records = ["ab-12.cd.net.", "de-34.fg.net."]

例如，我可以使用另一张地图来做到这一点

new_records = records.map{|record| record.name.to_s.}.sort
new_records2 = new_records.map { |record| "#{record}." }

但正在寻找一种使用第一张地图本身实现它的有效方法。

Answer 1

这可行：

new_records = records.map{|record| "#{record.name.to_s}." }.sort

你也可以像这样使用+：

new_records = records.map{|record| record.name.to_s + "." }.sort