I have an application that stores phone numbers as '+11231231234'. To make it easier for the user, I convert it to: +1(123) 123-1234 in the view. I use the number_to_phone helper in rails to do it:
我有一个将电话号码存储为“+11231231234”的应用程序。为了方便用户，我将其转换为:+1(123)123-1234。我在rails中使用number_to_phone helper:
<%= number_to_phone(call.From, :area_code => true) %>
I also want to remove the +1 from the view. What would I need to write to remove the first two characters of the phone number if the first two characters are +1?
我还想从视图中删除+1。如果前两个字符是+1，我需要写什么来删除电话号码的前两个字符?
2 个解决方案
#1
7
number_to_phone(call.From, :area_code => true).gsub(/^\+\d/, '')
#2
2
Another way:
另一种方法:
number_to_phone(call.From, :area_code => true)[2..-1]
Of course this is valid only if you always want to remove the first two characters but it's easier on the cpu :)
当然，这只有在您总是想删除前两个字符时才有效，但在cpu上更容易:)
#1
7
number_to_phone(call.From, :area_code => true).gsub(/^\+\d/, '')
#2
2
Another way:
另一种方法:
number_to_phone(call.From, :area_code => true)[2..-1]
Of course this is valid only if you always want to remove the first two characters but it's easier on the cpu :)
当然，这只有在您总是想删除前两个字符时才有效，但在cpu上更容易:)