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createEagerElement #180
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createEagerElement #180
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istarkov
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Oct 31, 2016
* Fix mapPropsStream's example It seems like in the docs, `Observable` refers to `Rx.Observable`. In Rx4 and Rx5, `Rx.Observable.interval` emits numbers, not objects. * Advertise `withProps` * Clean-up some comments * Fix links to the React documentation * Improve renderComponent's doc Since faaafb0 (#227), branch's third argument defaults to the identity function. This is a nice addition and we probably want to advertise it in renderComponent's doc. * Remove dead code Since 390697a (#180, 2016-05-21), branch()'s `{Left,Right}Component` internal instance variables are not used anymore.
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Internally, we've been using a special version of
React.createElementthat checks if a functional component is "referentially transparent" and returns its output, rather than creating a React element. Let's call thiscreateEagerElementand expose it as a public API.We were also using a function called
internalCreateElementthat acts like a curried form of (what is now called)createEagerElement. This has a slight optimization, which is to avoid checking for referential transparency each time its used. I couldn't think of a good name at the time, but it's actually just a factory in React parlance. We'll call thiscreateEagerFactory.