Quiz-localization

Test your knowledge of Ruby localization including character encoding, Unicode handling, internationalization concepts, and date/time & number formatting.

Question 1: Character Encoding

What is the default character encoding for strings in Ruby 2.0 and later?

ASCII UTF-8 ISO-8859-1 Windows-1252

Question 2: Unicode Normalization

Which Unicode normalization form combines decomposed characters into their precomposed equivalents?

NFD (Canonical Decomposition) NFC (Canonical Decomposition + Composition) NFKD (Compatibility Decomposition) NFKC (Compatibility Decomposition + Composition)

Question 3: String Methods

What's the difference between String#length and String#bytesize in Ruby?

They return the same value for all strings length returns character count, bytesize returns byte count length returns byte count, bytesize returns character count There is no difference, they are aliases

Question 4: Encoding Conversion

Which method safely converts a string to UTF-8, replacing invalid characters?

string.force_encoding('UTF-8') string.encode('UTF-8', invalid: :replace, undef: :replace) string.to_utf8 string.convert_encoding('UTF-8')

Question 5: Date Formatting

Which strftime format code represents a 4-digit year?

%y %Y %yyyy %YYYY

Question 6: Number Formatting

In German locale, how would you typically format the number 1234.56?

1,234.56 1.234,56 1 234,56 1234,56

Question 7: Locale-Aware Sorting

Why might standard string sorting be inappropriate for international text?

It's always case-sensitive It doesn't consider locale-specific collation rules It's too slow for large datasets It only works with ASCII characters

Question 8: Text Direction

Which languages typically use right-to-left (RTL) text direction?

Chinese and Japanese Arabic and Hebrew Russian and Greek Korean and Thai

Question 9: File I/O Encoding

How do you read a file with a specific encoding in Ruby?

File.read('file.txt', encoding: 'UTF-8') File.read('file.txt', 'UTF-8') File.read_with_encoding('file.txt', 'UTF-8') File.open('file.txt', encoding: 'UTF-8').read

Question 10: Pluralization

Which approach is best for implementing pluralization in an international application?

Always add 's' for plural forms Use locale-specific pluralization rules Avoid plural forms altogether Use only numbers without text

Question 11: Time Zone Handling

When displaying times to users in different time zones, what should you do?

Always display UTC time Convert to the user's local time zone Use the server's time zone Display only relative times

Question 12: I18n Best Practices

What is the most important principle when designing an internationalized application?

Use the shortest possible text Separate content from code from the beginning Focus only on English initially Use Google Translate for all text