Created
July 20, 2016 19:37
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| gem 'json', '= 2.0.1' | |
| require 'json' | |
| JSON::VERSION # => "2.0.1" | |
| json_string = '{}' | |
| utf8_string = json_string.dup.force_encoding('UTF-8') | |
| utf8_string_frozen = utf8_string.dup.freeze | |
| ascii8_string = json_string.dup.force_encoding('ASCII-8BIT') | |
| ascii8_string_frozen = ascii8_string.dup.freeze | |
| utf8_string.encoding # => #<Encoding:UTF-8> | |
| utf8_string_frozen.encoding # => #<Encoding:UTF-8> | |
| ascii8_string.encoding # => #<Encoding:ASCII-8BIT> | |
| ascii8_string_frozen.encoding # => #<Encoding:ASCII-8BIT> | |
| utf8_string.frozen? # => false | |
| utf8_string_frozen.frozen? # => true | |
| ascii8_string.frozen? # => false | |
| ascii8_string_frozen.frozen? # => true | |
| JSON.parse(utf8_string) # => {} | |
| JSON.parse(utf8_string_frozen) # => {} | |
| JSON.parse(ascii8_string) # => {} | |
| JSON.parse(ascii8_string_frozen) # can't modify frozen String (RuntimeError) |
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