ConnectedComponent about react-redux

[gaearon]

Inheritance is discouraged in React code and should always be avoided for components. Composition solves the same problem in a way that is much easier to maintain.

Consider this:

1. You'd have to remember to call super from lifecycle hooks, or component would break in a weird way.

2. If React Redux starts to use a new lifecycle hook in its internal implementation, your existing code might break even if it worked before, because you might have been forgetting to call super.

3. Name clashes. What if you name your method handleChange? You're going to overwrite my method. Oops!

4. What if every utility component behaved this way? We can't have more than one base class.

In short, inheritance brings a bunch of problems, and doesn't have any advantages to composition in case of React components. Don't use it.

[dmitry-zaets]

Thanks for a good explanation! Will avoid using it in such way!
Just wanted to make using of connectors more transparent than 'connector(select)(Component)' calls. But I think that's wrong way:)

[gaearon]

If you want a neater syntax you can use ES7 decorators proposal implemented by Babel.
Note that it's experimental and may change.

@connect(select)
export default class MyComponent { }

[dmitry-zaets]

Thanks, I've already noticed that in examples, but still want to avoid using experimental ES7 parts.

[gaearon]

A few more comments on React, inheritance and composition:

facebook/react#613 (comment)
facebook/react#613 (comment)
facebook/react#613 (comment)