marcinlerka

# http://play.codesthq.com/game#1
# Write a method called format_number which converts given integer number to string like this:

# format_number(49)         #=> '49'
# format_number(12345)      #=> '12_345'
# format_number(-134567)    #=> '-134_567'
# format_number(1234567890) #=> '1_234_567_890'

# The idea is to create groups of 3 digits separated by '_' character.

marcinlerka

'AT': (/^(AT)(U\d{8}$)/i),                                   // Austria
'BE': (/^(BE)(\d{10}$)/i),                                   // Belgium
'BG': (/^(BG)(\d{9,10}$)/i),                                 // Bulgaria 
'CY': (/^(CY)([0-5|9]\d{7}[A-Z]$)/i),                        // Cyprus
'CZ': (/^(CZ)(\d{8,10})?$/i),                                // Czech Republic
'DE': (/^(DE)([1-9]\d{8}$)/i),                               // Germany 
'DK': (/^(DK)(\d{8}$)/i),                                    // Denmark 
'EE': (/^(EE)(10\d{7}$)/i),                                  // Estonia 
'EL': (/^(EL)(\d{9}$)/i),                                    // Greece 
'ES': (/^(ES)([0-9A-Z][0-9]{7}[0-9A-Z]$)/i),                 // Spain

marcinlerka

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