@joshdcuneo/tsm-react
v0.1.1
Published
A simple React hook to make it easier to work with TSM in React.
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TSM-React
A simple React hook to make it easier to work with TSM in React.
Example
import {components} from "@joshdcuneo/tsm";
import * as React from "react";
import {useMachine} from "../src";
export type CounterProps = {initialCount?: number}
type State = 'idle' | 'counting' | 'maxedOut';
type Event = { type: 'inc' } | { type: 'dec' } | { type: 'reset' };
type Context = number;
const {
machine,
state,
transition,
reducer,
guard,
immediate,
} = components<State, Event, Context>();
const inc = transition(
'inc',
'counting',
reducer(ctx => ctx + 1)
);
const maxedOut = transition(
'inc',
'maxedOut',
guard(ctx => ctx === 5)
);
const dec = transition(
'dec',
'counting',
reducer(ctx => ctx - 1),
guard(ctx => ctx > 0)
);
const reset = transition(
'reset',
'idle',
reducer(() => 0)
);
const restart = immediate(
'idle',
reducer(() => 0),
);
const counterMachineConfig = machine(
state('idle', inc),
state('counting', maxedOut, inc, dec, reset),
state('maxedOut', restart),
);
export const Counter = (props: CounterProps) => {
const {initialCount = 0} = props
const [service] = useMachine<State, Event, Context>(counterMachineConfig, initialCount)
return (
<div>
<div>The count is: <span data-testid="count">{service.context()}</span></div>
<div>The machine state is: <span data-testid="state">{service.machine.state.name}</span></div>
<button onClick={()=>service.send({type: 'inc'})}>+</button>
<button onClick={()=>service.send({type: 'dec'})}>-</button>
<button onClick={()=>service.send({type: 'reset'})}>Reset</button>
</div>
)
}
Storybook
git clone https://github.com/joshdcuneo/tsm-react.git
cd tsm-react
npm install
npm run storybook
This loads the stories from ./stories
.
Examples
Then run the example inside another:
git clone https://github.com/joshdcuneo/tsm-react.git
cd tsm-react
npm install
npm run build
cd example
npm run start
The default example imports and live reloads whatever is in /dist
, so if you are seeing an out of date component, make sure TSDX is running in watch mode like we recommend above. No symlinking required, we use Parcel's aliasing.
To do a one-off build, use npm run build
or yarn build
.
To run tests, use npm test
or yarn test
.