module ZipCode
Constants
- MAPPING
- VERSION
Public Class Methods
find(province, city, district = '')
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# File lib/zip_code.rb, line 4 def self.find province, city, district = '' return '' if ZipCode::MAPPING[province].nil? return '' if ZipCode::MAPPING[province][city].nil? return ZipCode::MAPPING[province][city].first[1] if district.empty? return ZipCode::MAPPING[province][city][district] || '' end