Ruby数组到字符串的转换

Question

我有像红宝石一样的数组['12','34','35','231'].

我想将它转换为类似的字符串'12','34','35','231'.

我怎样才能做到这一点？

Answer 1

我将加入以下乐趣:

['12','34','35','231'].join(', ')

编辑:

"'#{['12','34','35','231'].join("', '")}'"

一些字符串插值添加第一个和最后一个单引号:P

Answer 2

> a = ['12','34','35','231']
> a.map { |i| "'" + i.to_s + "'" }.join(",")
=> "'12','34','35','231'"

Answer 3

试试这段代码 ['12','34','35','231']*","

会给你结果"12,34,35,231"

我希望这是你的结果,让我知道

Answer 4

array.map{ |i|  %Q('#{i}') }.join(',')

Answer 5

string_arr.map(&:inspect).join(',') # or other separator

Answer 6

我发现这种方式可读和rubyish:

add_quotes =- > x{"'#{x}'"}

p  ['12','34','35','231'].map(&add_quotes).join(',') => "'12','34','35','231'"

Answer 7

> puts "'"+['12','34','35','231']*"','"+"'"
'12','34','35','231'

> puts ['12','34','35','231'].inspect[1...-1].gsub('"',"'")
'12', '34', '35', '231'