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What is an easy way to find out what methods/properties that a ruby object exposes?
As an example to get member information for a string, in PowerShell, you can do
"" | get-member In Python,
dir("") Is there such an easy way to discover member information of a Ruby object?
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The proper way to determine the "type" of an object, which is a wobbly term in the Ruby world, is to call object. class . Since classes can inherit from other classes, if you want to determine if an object is "of a particular type" you might call object.
In `ruby`, the body of an object is expressed by a struct and always handled via a pointer. A different struct type is used for each class, but the pointer type will always be `VALUE` (figure 1). In practice, when using a `VALUE`, we cast it to the pointer to each object struct.
Practically everything in Ruby is an Object, with the exception of control structures. Whether or not under the covers a method, code block or operator is or isn't an Object, they are represented as Objects and can be thought of as such.
"foo".methods See:
http://ruby-doc.org/core/classes/Object.html
http://ruby-doc.org/core/classes/Class.html
http://ruby-doc.org/core/classes/Module.html
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Ruby doesn't have properties. Every time you want to access an instance variable within another object, you have to use a method to access it.
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