variable types in ruby

fabgrel10 answered on October 20, 2022 Popularity 9/10 Helpfulness 2/10

answer variable types in ruby

variable types in ruby

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There are four types of variables in Ruby:

1. Local variables: starts with a lowercase letter or underscore _). 
   It is only accessible or have its scope within the block of its 
   initialization. Once the code block completes, variable has no scope.

2. Class variables: starts with @@ sign. They need to be initialized 
   before use. A class variable belongs to the whole class and can be 
   accessible from anywhere inside the class.
   
3. Instance variable: starts with a @ sign. It belongs to one instance
   of the class and can be accessed from any instance of the class within
   a method. It has limited access to a particular instance of a class. 
   Doesn't need to be initialized.
   
4. Global variables: starts with a $ sign. Its scope is globally, means
   it can be accessed from anywhere in the program.

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Tags: ruby variable-types whatever

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