Asked by: Lioudmila De Luz
technology and computing databases

What is a variable in ruby?

9
A variable is a name that Ruby associateswith a particular object. For example: city = "Toronto" HereRuby associates the string "Toronto" with the name(variable) city. Think of it as Ruby making twotables. One with objects and another with names forthem.


Correspondingly, what does variable mean in Ruby?

Ruby Class Variables A class variable is a variable that is sharedamongst all instances of a class. This means that if oneobject instance changes the value of the variable, that newvalue will essentially change for all other objectinstances.

Similarly, what does colon mean in Ruby? Colon variable in Ruby. Colonvariable refers to :abc type variables you might have seen inRuby. They are called Ruby symbols. In comparison toother languages, a Ruby symbol is not a variable because itcannot be assigned a value.

People also ask, what is class variable in Ruby?

Class and Instance Variables in Ruby. Useddeclare variables within a class. There are two maintypes: class variables, which have the same value across allclass instances (i.e. static variables), and instancevariables, which have different values for each objectinstance.

What is a method in Ruby?

A method in Ruby is a set of expressions thatreturns a value. With methods, one can organize their codeinto subroutines that can be easily invoked from other areas oftheir program.

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15th January, 2020

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