What is the difference between classical inheritance and prototypal inheritance?
In JavaScript, prototypal inheritance is simpler & more flexible than class inheritance.
- Good to hear: Classes: create tight coupling or hierarchies/taxonomies; Prototypes: mentions of concatenative inheritance, prototype delegation, functional inheritance, object composition.
- Red Flags: No preference for prototypal inheritance & composition over class inheritance.
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What does “favor object composition over class inheritance” mean?
Good to hear:
- Avoid class hierarchies.
- Avoid brittle base class problem.
- Avoid tight coupling.
- Avoid rigid taxonomy.
- Avoid the gorilla banana problem.
- Make code more flexible.
What is functional programming?
It produces programs by composing mathematical functions and avoids shared state & mutable data.
- Good to hear: Pure functions/function purity; Avoid side-effects; Simple function composition; Examples of functional languages: Lisp, ML, Haskell, Erlang,...
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