我有一个像['12'，'34'，'35'，'231']这样的红宝石数组。
我想把它转换成字符串，比如'12' '34' '35' '231'
我该怎么做呢?
当前回答
> a = ['12','34','35','231']
> a.map { |i| "'" + i.to_s + "'" }.join(",")
=> "'12','34','35','231'"
其他回答
irb(main):027:0> puts ['12','34','35','231'].inspect.to_s[1..-2].gsub('"', "'")
'12', '34', '35', '231'
=> nil
> puts "'"+['12','34','35','231']*"','"+"'"
'12','34','35','231'
> puts ['12','34','35','231'].inspect[1...-1].gsub('"',"'")
'12', '34', '35', '231'
string_arr.map(&:inspect).join(',') # or other separator
> a = ['12','34','35','231']
> a.map { |i| "'" + i.to_s + "'" }.join(",")
=> "'12','34','35','231'"
我将加入其中:
['12','34','35','231'].join(', ')
# => 12, 34, 35, 231
编辑:
"'#{['12','34','35','231'].join("', '")}'"
# => '12','34','35','231'
一些字符串插值，添加第一个和最后一个单引号:P
