从Rails的字符串中删除所有空格字符

Question

How do I remove all spaces and white-space characters from a string?

I have tried the following:

number = params[:phone][:number]
number.delete(' ').gsub(/\D/)

However, if I enter a number with a space I still get something like 0000 000 . It's supposed to return 0000000 , ie, no spaces.

Answer 1

Use the destructive delete method. #delete!

number.delete!(' ').gsub(/\D/)