React Split Components (RiC)

A new way of Function Components without Hooks.

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Introduction

Introducing React Split Components →

React Function Components in closure style.

Write React like Svelte, just natural and fluent code.

Features

Remove the dependence on Hooks, but not purely Functional Components
Only at the writing level, no need for ESLint support
Like High-Order Components, it's a "design pattern", not API, no lib needed

Simple Example

function demo({ atom }) {
  const state = atom({
    count: 0,
  });

  const onClick = () => {
    state.count += 1;
  };

  return () => {
    const { count } = state;
    return (
      <>
        <h1>{count}</h1>
        <button onClick={onClick}>Click me</button>
      </>
    );
  };
}

const Demo = create(demo);

Full Example

function demo({ props, atom, onMount, onEffect }) {
  const state = atom({
    // for useState
    loading: true,
    data: null,
    count: 0,

    // for useMemo
    power: () => state.count * state.count,
    text: () => `${props.theme} ~ ${state.count}`,
  });

  // for useRef
  const countRef = { current: null };

  // for useCallback
  const onClick = () => {
    const { setTheme } = props;
    setTheme();
    state.count += 1;
  };

  const getData = () => {
    request().then((res) => {
      state.data = res.data;
      state.loading = false;
    });
  };

  // for useEffect
  onMount(() => {
    getData();
    console.log('mount!');

    return () => {
      console.log('unmount!');
    };
  });

  onEffect(state.power, (val, prevVal) => {
    console.log('enter state.power', val, prevVal);

    return () => {
      console.log('clear state.power', val, prevVal);
    };
  });

  const onReload = () => {
    state.loading = true;
    getData();
  };

  return () => {
    const { theme } = props;
    const { loading, data, count, power, text } = state;

    return (
      <>
        <h1>{loading ? 'loading...' : JSON.stringify(data)}</h1>
        <button onClick={onReload}>Reload data</button>
        <h1>{theme}</h1>
        <h1 ref={countRef}>{count}</h1>
        <h1>{power}</h1>
        <h1>{text}</h1>
        <button onClick={onClick}>Click me</button>
      </>
    );
  };
}

const Demo = create(demo);

lokshunhung/react-split-components

React Split Components (RiC)

Introduction

Features

Simple Example

Full Example

Online Demo

License

FUTAKE