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Preview Ruby 4.1 is a preview. It can change before the final release. Switch to Ruby 4.0 →

class method

Encoding.default_internal

() -> ::Encoding?
Encoding.default_internal → enc

Returns default internal encoding. Strings will be transcoded to the default internal encoding in the following places if the default internal encoding is not nil:

Additionally String#encode and String#encode! use the default internal encoding if no encoding is given.

The script encoding (__ENCODING__), not default_internal, is used as the encoding of created strings.

Encoding::default_internal is initialized with -E option or nil otherwise.