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✏️ 正在编辑: instance_variable_get-i.yaml
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/opt/alt/ruby18/share/ri/1.8/system/Object/instance_variable_get-i.yaml
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--- !ruby/object:RI::MethodDescription aliases: [] block_params: comment: - !ruby/struct:SM::Flow::P body: Returns the value of the given instance variable, or nil if the instance variable is not set. The <tt>@</tt> part of the variable name should be included for regular instance variables. Throws a <tt>NameError</tt> exception if the supplied symbol is not valid as an instance variable name. - !ruby/struct:SM::Flow::VERB body: " class Fred\n def initialize(p1, p2)\n @a, @b = p1, p2\n end\n end\n fred = Fred.new('cat', 99)\n fred.instance_variable_get(:@a) #=> "cat"\n fred.instance_variable_get("@b") #=> 99\n" full_name: Object#instance_variable_get is_singleton: false name: instance_variable_get params: | obj.instance_variable_get(symbol) => obj visibility: public
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