Determining type of an object in ruby - Stack Overflow
Oct 25, 2016 · @JörgWMittag - in Ruby everything is an Object, so there's no primitive types as there are in Python (int, long, boolean etc.) As a result within Ruby, classes are type definitions. This is not limited to Ruby either, the word class and type are synonymous in several other languages, and more broadly in OOP theory. –
ruby - Rails 4: List of available datatypes - Stack Overflow
Jul 29, 2013 · Also, those columns will have type nil in a non-postgres database. You can inspect the type in the console with Model.columns_hash["column_name"].type.
ruby - What's the difference between equal?, eql?, ===, and
Aug 23, 2011 · As, in Ruby, all comparators (and most operators) are actually method-calls, you can change, overwrite, and define the semantics of these comparing methods yourself. However, it is important to understand, when Ruby's internal language constructs use which comparator: == (value comparison) Ruby uses :== everywhere to compare the values of 2 ...
What are the conventions for types in Ruby? - Stack Overflow
In Ruby, types are more like network protocols: a type describes the messages an object understands and how it reacts to them. (This similarity is no accident: Smalltalk, Ruby's distant ancestor was inspired by what would later become the Internet. In Smalltalk parlance, "protocol" is the term that is informally used to describe the types of ...
Function to find object type in Ruby - Stack Overflow
Jan 10, 2016 · But 5 and 5.0 in Ruby (like many other programming languages) are not the same. One is a fixed-point value (ergo Fixnum) and the other is a floating-point value (Float). A Fixnum can represent integers only, but a Float can represent both integers and fractions (but, it behooves me to mention, not all fractions ).
Are there primitive types in Ruby? - Stack Overflow
Sep 13, 2013 · There are no primitive data types in ruby. Because ruby is a purely object-oriented language. Basically, there are data types like other languages, but these data types are classes like collections in java. If you define any string value like "Akshay" then it is an object. You can check the below image in which "Akshay" has object_id 30300.
Is it possible to declare types in Ruby? - Stack Overflow
Jan 9, 2012 · Ruby is a “dynamically typed” language aka "duck typing", which means that variable dynamically changes its own type when type of assigned data has changed. So, you can't declare variable to some strict type, it will always be dynamic.
Type Conversions in Ruby: The "Right" Way? - Stack Overflow
May 21, 2014 · I don't know about the can_convert method, but generally a class will define methods like to_s, to_i, to_hash and so on.
Size of numeric data types in Ruby - Stack Overflow
Mar 21, 2021 · The ruby/spec for Integer#size does say something about the sizes of specific machine integers in bytes. However, unfortunately, ruby/spec is kind of a mixture between specifications for the behavior of the Ruby Programming Language and the behavior of the YARV Ruby Implementation. I have the feeling that this spec is more like the latter.
List of Rails Model Types - Stack Overflow
Jul 15, 2010 · Does someone have a complete list of model types that be specified when generating a model scaffolding . e.g. foo:string bar:text baz:boolean etc... And what do these types map to in terms of default UI elements? Text field, Text area, radio button, checkbox, etc...