https://perldoc.perl.org/perlclass
perlclass - Perl class syntax reference - Perldoc Browser
class syntaxperlreferencebrowser
https://www.naukri.com/code360/library/python-counter
Python Counter Class: Syntax, Examples, and Applications Explained - Naukri Code 360
Learn Python Counter with examples. Understand its core concepts, usage in counting elements, and how to apply it effectively in real-world scenarios.
class syntaxpythoncounterexamples
https://www.mathworks.com/help/matlab/class-definition-and-organization.html
Class Syntax and File Organization - MATLAB & Simulink
Class block syntax, attributes, and organization in files and folders
class syntaxfile organizationmatlabsimulink
https://www.w3.org/Style/CSS/Test/CSS3/Selectors/20060307/xhtml/tests/css3-modsel-183.xml
Syntax and parsing of class selectors
syntaxparsingclassselectors