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Ruby Reserved Words - Ruby Keywords

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Also called: Ruby Language Keywords, Ruby Reserved Keywords, Ruby Keywords, Ruby Reserved Identifiers, Ruby Reserved words

Provide a list of Reserved Words in Ruby. Answer in MediaWiki syntax with the URL of the official documentation for each language reference.

Here's a list of Reserved Words in Ruby along with links to the official Ruby documentation for each language reference:

Reserved Words in Ruby

BEGIN - Marks code to be run unconditionally before the program's body.
END - Marks code to be run unconditionally after the program's body.
alias - Creates an alias for a method or global variable.
and - Logical operator, same as '&&'.
begin - Starts an exception-handling block.
break - Terminates a loop or a method.
case - Starts a case expression.
class - Defines a new class.
def - Defines a new method.
defined? - Returns a description of the item passed to it.
do - Starts a block of code (and executes it).
else - Executes code if the conditional statement(s) are false.
elsif - Executes code if the conditional statement(s) are false and the elsif condition is true.
end - Marks the end of a block, method, class, or module.
ensure - Ensures that the final block of code is always executed.
false - Boolean false value.
for - Loops over a collection of elements.
if - Executes code if a condition is true.
in - Used in for loops to iterate over elements.
module - Defines a new module.
next - Skips the current iteration of a loop.
nil - Represents “nothing” or “no value”.
not - Logical operator, negates the expression that follows it.
or - Logical operator, same as '||'.
redo - Restarts a loop without checking the loop condition.
rescue - Handles exceptions in Ruby.
retry - Retries the block that caused the exception.
return - Exits a method and returns a value.
self - Refers to the current object.
super - Calls the superclass implementation of the current method.
then - Separates the conditional expression from the code to be executed.
true - Boolean true value.
undef - Prevents a class or module from responding to a method call.
unless - Executes code if the condition is false.
until - Executes code while the condition is false.
when - Part of a case expression, specifies a condition to be met.
while - Executes code while the condition is true.
yield - Passes control from a method to a block.

You can find more details about each reserved word in the Ruby documentation: https://ruby-doc.org

Snippet from Wikipedia: Ruby (programming language): Ruby is an interpreted, high-level, general-purpose programming language. It was designed with an emphasis on programming productivity and simplicity. In Ruby, everything is an object, including primitive data types. It was developed in the mid-1990s by Yukihiro "Matz" Matsumoto in Japan.
Ruby is dynamically typed and uses garbage collection and just-in-time compilation. It supports multiple programming paradigms, including procedural, object-oriented, and functional programming. According to the creator, Ruby was influenced by Perl, Smalltalk, Eiffel, Ada, BASIC, Java, and Lisp.

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