import "./styles.css";
import React from "react";
import ReactDOM from "react-dom";
import { createMachine, assign } from "xstate";
import { useMachine } from "@xstate/react";
import { inspect } from "@xstate/inspect";
inspect();
const toggleMachine = createMachine({
id: "toggle",
initial: "inactive",
context: {
count: 0
},
states: {
inactive: {
on: { TOGGLE: "active" }
},
active: {
entry: assign({ count: (ctx) => ctx.count + 1 }),
on: { TOGGLE: "inactive" }
}
}
});
function App() {
const [state, send] = useMachine(toggleMachine, { devTools: true });
const active = state.matches("active");
const { count } = state.context;
return (
<div className="App">
<h1>XState React Viz Template</h1>
<h2>Fork this template!</h2>
<button onClick={() => send("TOGGLE")}>
Click me ({active ? "✅" : "❌"})
</button>{" "}
<code>
Toggled <strong>{count}</strong> times
</code>
</div>
);
}
const rootElement = document.getElementById("root");
ReactDOM.render(<App />, rootElement);
<iframe sandbox="allow-forms allow-modals allow-popups allow-presentation allow-same-origin allow-scripts" src="https://codesandbox.io/embed/compassionate-morning-y3dkmf?fontsize=14&hidenavigation=1&theme=dark" style="width: 100%; height: 500px; border: 0; border-radius: 4px; overflow: hidden" title="compassionate-morning-y3dkmf"></iframe>
标签:count,char,const,inspect,machine,state,using,active,import From: https://www.cnblogs.com/Answer1215/p/16917074.html