January 2024
Intermediate to advanced
718 pages
20h 15m
English
Module#prepend is introduced.
Default source encoding changes to UTF-8.
Refinements are added.
Keyword arguments are added, but a default value is always required, and the internal implementation still overlaps with positional arguments.
%i is added as a delimiter for a list of symbols.
Lazy enumerators are added.
to_h and Kernel#Hash are added as the convention to convert to Hash objects.
TracePoint is added.
Numeric values are frozen.
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