check.rb:24: warning: class variable access from toplevel @@class: class variable --- 1.3 --- isArray: true class: Array --- 1.4 --- Test false false true ---
RUBY_DEBUG_BB: Define Kernel#bb method which is alias of Kernel#debugger. Initial scripts If there is ~/.rdbgrc, the file is loaded as an initial script (which contains debug commands) when the debug session is started. RUBY_DEBUG_INIT_SCRIPT environment variable can specify the initial scr...
each { |elem| puts elem } # elem is not accessible outside each block elem # => NameError: undefined local variable or method `elem' then in Multi-line Expression Do not use then for multi-line if/unless/when/in. # bad if some_condition then # body omitted end # bad case foo ...
%{ruby_libdir}/did_you_mean/spell_checkers/name_error_checkers/variable_name_checker.rb %{ruby_libdir}/did_you_mean/spell_checkers/null_checker.rb %{ruby_libdir}/did_you_mean/spell_checkers/require_path_checker.rb %{ruby_libdir}/did_you_mean/tree_spell_checker.rb %{ruby_libdir...
To generate the reader methods ourselves, we loop over theattrsarray and define a method for each attribute that returns the current value of the matching instance variable if no new value is provided and writes the new value if it is specified: ...
size); if (!) rb_fatal("failedto allocate "); } return mem; } void * xcallocn, size) size_t n, size; { void*; mem = xmalloc * size; memset(mem, , n * size); return; } void
* `Array#to_sentence` no longer returns a frozen string. Before: ['one', 'two'].to_sentence.frozen? # => true After: ['one', 'two'].to_sentence.frozen? # => false *Nicolas Dular* * When an instance of `ActiveSupport::Duration` is converted to an `iso8601` duration string, i...
ruby is dynamically typed. its runtime determines a variable's type based on its initialisation and how it is used(duck typing) duck typing: if it walks like a duck, it is a duck!. # respond? static versus dynamic typing static: like java, better runtime optimisation, but slower develop...
* Freeze `Gem::Version@segments` instance variable. Pull request #1487 by Ben Dean. * Gem cleanup is trying to uninstall gems outside GEM_HOME and reporting an error after it tries. Pull request #1353 by Luis Sagastume. * Avoid duplicated sources. Pull request #1489 by Luis Sagastume....
Class Instance Variable When you learn about objects, you usually learn that they can capture two kinds of data: instance and class. Instance variables are the most common case, the data varies with each instance of the object. Class variables, often referred to as static variables, are shared...