What’s the Difference Between Class & Prototypal Inheritance? - Deepstash

What’s the Difference Between Class & Prototypal Inheritance?

  • Class Inheritance: A class is like a blueprint — a description of the object to be created. Classes inherit from classes and create subclass relationships: hierarchical class taxonomies.
  • Prototypal Inheritance: A prototype is a working object instance. Objects inherit directly from other objects.

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MORE IDEAS FROM Master the JavaScript Interview: What’s the Difference Between Class & Prototypal Inheritance?

  • Concatenative inheritance: The process of inheriting features directly from one object to another by copying the source objects properties. 
  • Prototype delegation: If a property is not found on the object, the lookup is delegated to the delegate prototype, which may have a link to its own delegate prototype, and so on up the chain until you arrive at `Object.prototype`, which is the root delegate. 
  • Functional inheritance: In JavaScript, any function can create an object. When that function is not a constructor (or `class`), it’s called a factory function

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  • The tight coupling problem (class inheritance is the tightest coupling available in oo design), which leads to the next one…
  • The fragile base class problem
  • Inflexible hierarchy problem (eventually, all evolving hierarchies are wrong for new uses)
  • The duplication by necessity problem (due to inflexible hierarchies, new use cases are often shoe-horned in by duplicating, rather than adapting existing code)
  • The Gorilla/banana problem (What you wanted was a banana, but what you got was a gorilla holding the banana, and the entire jungle).

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Anyone can be an inventor

These days, practically anyone can be an inventor.

You don't have to be an expert in a field to contribute. You can become an inventor simply by having an idea and refining it.

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