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Zero-cost functional reactive Signals for Rust
Rust
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src Revert "Make `serde` optional" Aug 28, 2019
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README.md Moving more docs Apr 23, 2018

README.md

This is a Rust crate that provides zero-cost Signals which are built on top of the futures crate.

Hold on, zero-cost? Yup, that's right: if you don't use a feature you don't pay any performance cost, and the features that you do use are as fast as possible. Signals are very efficient.

What is a Signal? It is a value that changes over time, and you can be efficiently notified whenever its value changes.

This is useful in many situations:

  • You can automatically serialize your program's state to a database whenever it changes.

  • You can automatically send a message to the server whenever the client's state changes, or vice versa. This can be used to automatically, efficiently, and conveniently keep the client and server's state in sync.

  • A game engine can use Signals to automatically update the game's state whenever something changes.

  • You can easily represent continuous input (such as the current temperature, or the current time) as a Signal.

  • If you create a GUI, you can use Signals to automatically update the GUI whenever your state changes, ensuring that your state and the GUI are always in sync.

  • You can use dominator to create web apps and automatically keep them in sync with your program's state.

  • And many more situations!

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