Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.
A method's cognitive complexity is based on a few simple rules:
Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
Code is considered more complex for each "break in the linear flow of the code"
Code is considered more complex when "flow breaking structures are nested"
A class with too many dependencies has negative impacts on several quality
aspects of a class. This includes quality criteria like stability,
maintainability and understandability
A class with too many dependencies has negative impacts on several quality
aspects of a class. This includes quality criteria like stability,
maintainability and understandability
A boolean flag argument is a reliable indicator for a violation of
the Single Responsibility Principle (SRP). You can fix this problem
by extracting the logic in the boolean flag into its own class
or method.
A boolean flag argument is a reliable indicator for a violation of
the Single Responsibility Principle (SRP). You can fix this problem
by extracting the logic in the boolean flag into its own class
or method.