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Duck typing is really helpful for cases where you want to expose a Rust trait to JS: as long as your Rust-exported type implements the interface, you can accept your Rust-exported type a JS-imported type, while retaining the ability to replace it with JS-imported types. A concrete example is if you’re exporting a storage interface, you likely have a default Rust implementation, but want extensibility if downstream devs want to give it an IndexedDB or S3 backend.
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Кайли Дженнер снялась без трусов для Vanity Fair в преддверии «Оскара»20:52
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We can change the problem a bit. React, for example, uses a pull-based reactivity system, but can isolate certain components in the rendered tree and say “only this component and all its children should update”. This means that instead of having to re-render the entire world, it only needs to re-render a given component and its children. The mechanism by which this works is interesting, but I’ll explore that in a follow-up post because this one is already getting too long!