Facts about State Machines

• Facts-about-State-Machines

  9 725 3.5

  I hold the opinion that state machines are underrated

• xstate

  60 26,119 9.6 TypeScript

  Actor-based state management & orchestration for complex app logic.

  

• InfluxDB

  www.influxdata.com sponsored

  Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

  

• bgjs

  4 67 5.2 TypeScript
  

State machines are cool but they don't compose well out of the box. Behavior Graph let's you build a composable network of them so they become a practical software architecture. (Disclaimer, I am a coauthor) https://github.com/yahoo/bgjs

• sml

  23 1,072 6.8 C++

  C++14 State Machine library

  

At our company, we rely a lot on https://github.com/boost-ext/sml

• svelte-fsm

  3 265 0.0 JavaScript

  Tiny, expressive finite state machines for svelte

https://github.com/kenkunz/svelte-fsm

Svelte + FSM turned one of the most convoluted UXes I've every dealt with into something manageable and almost pleasant.

This is a complex sales kiosk that must operate work limited or flapping network connectivity entire handling huge spikes in usage.

Svelte itself jusy gets out of the way, you don't fight it. The FSM makes your mental model explicit.

Something like "ok, we're halfway through the complex terminal registration process, the last network request timed out and there user pressed the back button, now what?"

With boolean flags its a mess.

• Groot

  1 576 6.7 C++

  Discontinued Graphical Editor to create BehaviorTrees. Compliant with BehaviorTree.CPP (by BehaviorTree)

  

Unrelated to javascript, but in the robotics industry there is a trend towards Behaviour Trees. https://www.behaviortree.dev/ is a C++ library that was originally designed for controlling robots via ROS, but it appears to be decoupled from the ROS ecosystem so it could be used for other projects.

There is a basic UI available for editing the tree https://github.com/BehaviorTree/Groot

• BehaviorTree.CPP

  4 2,690 9.3 C++

  Behavior Trees Library in C++. Batteries included.

  

Unrelated to javascript, but in the robotics industry there is a trend towards Behaviour Trees. https://www.behaviortree.dev/ is a C++ library that was originally designed for controlling robots via ROS, but it appears to be decoupled from the ROS ecosystem so it could be used for other projects.

There is a basic UI available for editing the tree https://github.com/BehaviorTree/Groot

• WorkOS

  workos.com sponsored

  The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.

  

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