# Prepare the data conn.exec("DELETE FROM test_define"); conn.exec("INSERT INTO test_define VALUES(1,'Scott Tiger', SYSDATE, SYSTIMESTAMP)") # Define to fetch Date and Time cursor = conn.parse("SELECT name,birthdate,lastvisit FROM test_define WHERE id = :id") cursor.bind_param(1,...
array((VALUE)obj->asnode.u1.value, obj->as.node.u3.cnt; obj = RANY(obj->as.node.u2.node) goto Top; endif default if (lookspointerp(obj->asnode.u1.node)){ rb_gc_markobj->.node.u1node); } if (looks_point(obj->as.node..node)) { rb_...
bug("%p can't remove from str_id (%s)", (void *)sym, RSTRINGPTR(str)); } } static ID register_static_sym(ID id, const char *name, long len, rb_encoding *enc) { VALUE str = rb_encstrnewname, len,
--no-prune: Don't remove stale gems from the cache. --path: Specify a different path than the system default ($BUNDLE_PATH or $GEM_HOME). Bundler will remember this value for future installs on this machine --quiet: Only output warnings and errors. ...
definstall# 安装检查pre_install_checks# 运行执行前脚本hookrun_pre_install_hooks# Set loaded_from to ensure extension_dir is correctif@options[:install_as_default]spec.loaded_from=default_spec_fileelsespec.loaded_from=spec_fileend# Completely remove any previous gem filesFileUtils.rm_rf gem_dir...
valueendputsTest.instan___methods-Test.superclass.public_methods执行结果为valuevalue=上面代码中,我们使用Test.instan___methods得到Test类所有的实例方法,使用Test.superclass.public_methods得到Test父类所有的实例方法,然后相减就得到Test类不包含父类的所有的实例方法由于instan___methods方法返回值为一个Array,...
#has_value? (Hash) #hash (Array) #hash (Float) #hash (Hash) #hash (MatchData) #hash (Method) #hash (Proc) #hash (Range) #hash (Regexp) #hash (String) #hash (Struct) #hash (Time) #hash (UnboundMethod) #hex (String) #hour (Time) #i (Numeric) #id2name (Symbol) #identica...
valuepropertyattributeevaluateselected : Array<Node>selectscroll_into_viewin_viewport?(of: Node | nil) : Booleanremoveexists?(chainable) Selects options by passed attribute.page.at_xpath("//*[select]").select(["1"]) # => Node (select) page.at_xpath("//*[select]").select(["text"],...
Remove value from the end of the array.num_array = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10] num_array.pop #=> 10 num_array #=> [1, 2, 3, 4, 5, 6, 7, 8, 9]Add values at the start of the array.numbers = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10] numbers.unshift(...
下文中有{:type => 'MIT'},首先这是Ruby字典类型(key => value),其中:key是一个symbol类型。symbol是不变的,在JS中也引入了symbol概念。 2、class中的"attr_accessor :name"方法包含了attr_reader和attr_reader方法,实现了对实例变量@name的writter和reader。可以发现这里后面的name使用了symbol类型。