formstate-x is a tool to help you manage form state, based on MobX. formstate-x provides:

• Composability: Forms are composition of inputs, complex inputs are composition of simpler inputs. With composability provided by formstate-x, you can build arbitrary complex forms or input components with maximal code reuse.
• Type safety: With Typescript, no matter how complex or dynamic the form logic is, you can get type-safe result for value, error, validator, etc.
• Reactive validation: With reactivity system of MobX, every dependency change triggers validation automatically and you can easily react to state change
• UI-independent: formstate-x only deals with state / data, you can easily use it with any UI library you like

You can find full documentation here.

1. Fork the repo and clone the forked repo

2. Install dependencies

   npm i

3. Edit the code

4. Do lint & unit test

   npm run validate

5. Commit and push, then create a pull request