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q-ractive-react

v2.0.2

Published

normal utils by qianzhixiang

Downloads

6

Readme

响应式 REACT 工具

q-reactive-react 主要赋予了 react 能响应式更新的功能。

响应式更新包括两个部分:

  1. 数据发生了改变,组件能够自动更新,而不需要手动 setState
  2. 数据发生了改变,组件不需要全部更新,只更新和数据相关的组件。

如此一来,能够带来两个直观的好处:

  1. 开发可以更加专注于逻辑层。
  2. 即使一个组件很大,你也不用担心重新渲染带来的额外消耗,所有的组件都能够知道自己什么时候能更新。性能更好。

使用实例

最简单的、类 vue 写法使用

import {QComponent} from 'q-reactive-react';
import React, {Component} from 'react';

@QComponent()
export class Test extends Component {
  count = 10;
  render() {
    return <>
      <div onClick={() => this.count++}>
        {this.count}
      </div>
    <>
  }
}

如上所示,简单、直观。你甚至还可以这样:

import {QComponent, Proxyable} from 'q-reactive-react';
import React, {Component} from 'react';

const user = Proxyable({age: 10})

@QComponent()
export class Test extends Component {
  count = 10;
  render() {
    return <>
      <div onClick={() => this.count++}>
        {this.count}
      </div>
      <div onClick={() => user.age++}>
        {user.age}
      </div>
    <>
  }
}

这里主要还是利用了 es6 的特性: Proxy,能够监听对象的变化。

你不需要过多的关心,你只要知道,proxyable 后的数据,可以随便使用。但是没有 proxyable 的肯定不可以自动更新。

Component 自动的进行了 Proxyable

你可能会好奇,为什么 Test 组件里面没有使用 Proxyable 呢,这里其实主要还是 Qcomponent 已经帮你做过了。

你可以使用 Proxyable 也可以不使用,效果一样。

依赖更新

Test2.tsx

import {QComponent, Prop, Proxyable} from 'q-reactive-react';
import React, {Component} from 'react';


@QComponent()
export class Test2 extends Component<{age: number}, any> {
  @Prop() age!: number;
  render() {
    console.log('test2 renderd');
    return <>
      <div>
        {this.age}
      </div>
    <>
  }
}

Test3.tsx

import {QComponent, Prop, Proxyable} from 'q-reactive-react';
import React, {Component} from 'react';


@QComponent()
export class Test3 extends Component<{count: number}, any> {
  @Prop() count!: number;
  render() {
    console.log('test3 renderd');
    return <>
      <div>
        {this.count}
      </div>
    <>
  }
}

Test.tsx

import {QComponent} from 'q-reactive-react';
import React, {Component} from 'react';
import {Test2} from './Test2';
import {Test3} from './Test3';

@QComponent()
export class Test extends Component {
  data = {
    age: 1,
    count: 1
  }
  render() {
    return <>
      <div onClick={() => this.data.age++}>
        <Test2 age={this.data.age}>
      </div>
       <div onClick={() => this.data.count++}>
        <Test2 age={this.data.count}>
      </div>
    <>
  }
}

如果点击 age, 你会发现只打印了"test3 renderd"

如果点击 count, 你会发现只打印了 "test2 renderd"

你不需要知道怎么去更新这些组件,QComponent 都帮你弄好了