Why would I use extension over an instance and vice versa?
1099
Prefer composition over inheritance?
12387
What is "Best Practice" For Comparing Two Instances of a Reference Type?
48703
How does instance_eval work and why does DHH hate it?
152225
Are synthesized instance variables generated as private instead of protected?
57419
Difference between new and override
5259
How to access object instance from property instance? (in `update` callback)
87902
How do I change extensions of all files in a folder to one common extension when all the files have different extensions?
60561
Possible pitfalls of using this (extension method based) shorthand
140783
Why to override clone method in Java
61128
Would it be beneficial to begin using instancetype instead of id?
39668
Is there a difference between an "instance variable" and a "property" in Objective-c?
81756
Extension methods syntax vs query syntax
16358
How do I change the extension of multiple files?
23973
Impossible to use ref and out for first ("this") parameter in Extension methods?
77954
Override a method at instance level
26731
Where does the 'override' qualifier go with trailing return types?
61861
Extension methods must be defined in a non-generic static class