able-baker/example/app.tsx

54 lines
1.4 KiB
TypeScript

import "http://localhost:1234/boot.tsx";
import React from "react";
const CTXString = React.createContext("lol");
type StateBinding<T> = [get:T, set:React.StateUpdater<T>];
const CTXState = React.createContext(null) as React.Context<StateBinding<number>|null>;
const Outer =(props:{children:React.JSX.Element})=>
{
const binding = React.useState(11);
return <CTXState.Provider value={binding}>
{props.children}
</CTXState.Provider>
};
const Inner =()=>
{
const [stateGet, stateSet] = React.useContext(CTXState) || ["default", ()=>{}];
return <button onClick={e=>stateSet((old)=>old+1)}>count: {stateGet} :)</button>
};
type Store = {name:string, age:number}
const reducer =(inState:Store, inAction:number)=>
{
return {...inState, age:inState.age+inAction};
}
const builder =(inState:Store):Store=>
{
inState.age = 100;
return inState;
}
export default ()=>
{
const [Store, Dispatch] = React.useReducer(reducer, {name:"seth", age:24} as Store, builder)
return <CTXString.Provider value="intradestink">
<div class="my-4 font-sans">
<h1 class="font-black text-xl text-red-500">Title????</h1>
<h2>subtitle</h2>
<p>
<button onClick={e=>Dispatch(1)}>{Store.name}|{Store.age}?</button>
</p>
</div>
<Outer>
<Inner/>
</Outer>
<Outer>
<Inner/>
</Outer>
</CTXString.Provider>;
}