Is there any neat method to convert "1,112" to integer 1112, instead of 1?
I've got one, but not neat:
"1,112".split(',').join.to_i #=> 1112
This question is related to
ruby
integer
data-conversion
The following is another method that will work, although as with some of the other methods it will strip decimal places.
a = 1,112
b = a.scan(/\d+/).join().to_i => 1112
You may also want to make sure that your code localizes correctly, or make sure the users are used to the "international" notation. For example, "1,112" actually means different numbers across different countries. In Germany it means the number a little over one, instead of one thousand and something.
Corresponding Wikipedia article is at http://en.wikipedia.org/wiki/Decimal_mark. It seems to be poorly written at this time though. For example as a Chinese I'm not sure where does these description about thousand separator in China come from.
If someone is looking to sub out more than a comma I'm a fan of:
"1,200".chars.grep(/\d/).join.to_i
dunno about performance but, it is more flexible than a gsub, ie:
"1-200".chars.grep(/\d/).join.to_i
I would do using String#tr :
"1,112".tr(',','').to_i # => 1112
Some more convenient
"1,1200.00".gsub(/[^0-9]/,'')
it makes "1 200 200" work properly aswell
String count = count.replace(",", "");
Source: Stackoverflow.com