React.js 实战之深入理解组件sublime 插件安装组件间通信

import React, { Component } from 'react';
import { render } from 'react-dom';

class GroceryList extends Component {
  handleClick(i) {
    console.log('You clicked: ' + this.props.items[i]);
  }

  render() {
    return (
      <div>
        {this.props.items.map((item, i) => {
          return (
            <div onClick={this.handleClick.bind(this, i)} key={i}>{item}</div>
          );
        })}
      </div>
    );
  }
}

render(
  <GroceryList items={['Apple', 'Banana', 'Cranberry']} />, mountNode
);

import React from 'react';
import ReactDOM from 'react-dom';

// 基础组件写法
function Component(){
    return <h1>I am sss</h1>
}

class ES6Component extends React.Component{
    render(){
        return <h1>I am sss in es6</h1>
    }
}

ReactDOM.render(
    <div>
        <Component/>
        <ES6Component/>
    </div>,
    document.getElementById('app')
);

// status && props
class Component extends React.Component{
    constructor(props){
        super(props);
    }
    render(){
        setTimeout(()=>{
            this.setState({
                name: 'sss Test'
            })
        },2000)
        return <h1>I am {this.state.name}</h1>
    }
}

ReactDOM.render(
    <div>
        <Component name="sss"/>
    </div>,
    document.getElementById('app')
);


// 事件处理方式1
class Component extends React.Component{
    constructor(props){
        super(props);
        this.state={
            name : 'sss',
            age : 18
        }
        this.handleClick = this.handleClick.bind(this)
    }
    handleClick(){
        this.setState({
            age : this.state.age + 1
        });
    }
    render(){
        return (
        <div>
            <h1>I am {this.state.name}</h1>
            <p>I am {this.state.age} years old!</p>
            <button onClick={this.handleClick}>加一岁</button>
        </div>
        );
    }
}



// 事件处理方式2
class Component extends React.Component{
    constructor(props){
        super(props);
        this.state={
            name : 'sss',
            age : 18
        }
    }
    handleClick(){
        this.setState({
            age : this.state.age + 1
        });
    }
    onValueChange(e){
        this.setState({
            age : e.target.value
        });
    }
    render(){
        return (
        <div>
            <h1>I am {this.state.name}</h1>
            <p>I am {this.state.age} years old!</p>
            <button onClick={(e) => {this.handleClick(e)}}>加一岁</button>
            <input type="text" onChange={(e) => {this.onValueChange(e)}}/>
        </div>
        );
    }
}



// 组件的组合方式
class Component extends React.Component{
    constructor(props){
        super(props);
        this.state={
            name : 'sss',
            age : 18
        }
    }
    handleClick(){
        this.setState({
            age : this.state.age + 1
        });
    }
    onValueChange(e){
        this.setState({
            age : e.target.value
        });
    }
    render(){
        return (
        <div>
            <h1>I am {this.state.name}</h1>
            <p>I am {this.state.age} years old!</p>
            <button onClick={(e) => {this.handleClick(e)}}>加一岁</button>
            <input type="text" onChange={(e) => {this.onValueChange(e)}}/>
        </div>
        );
    }
}

class Title extends React.Component{
    constructor(props){
        super(props);
    }
    render(props){
        return <h1>{this.props.children}</h1>
    }

}
class App extends React.Component{
    render(){
        return (
            <div className="">
                {/* 容器式组件 */}
                <Title>
                    <span>App Span</span>
                    <a href="">link</a>
                </Title>
                <hr/>
                {/* 单纯组件 */}
                <Component/>
            </div>
        );
    }
}


// 数据传递和状态提升
class Child1 extends React.Component{
    constructor(props){
        super(props);
    }
    handleClick(){
        this.props.changeChild2Color('red');
    }
    render(){
        return (
        <div>
            <h1>Child1： {this.props.bgColor}</h1>
            <button onClick={(e) => {this.handleClick(e)}}>改变child2 颜色</button>
        </div>
        );
    }
}
class Child2 extends React.Component{
    constructor(props){
        super(props);
    }
    render(){
        return (
        <div style={{background:this.props.bgColor}}>
            <h1>Child2背景颜色： {this.props.bgColor}</h1>
        </div>
        );
    }
}

class Father extends React.Component{
    constructor(props){
        super(props);
        this.state = {
            child2BgColor: '#999'
        }
    }
    onChild2BgColorChange(color){
        this.setState({
            child2BgColor : color
        })
    }
    render(props){
        return (
        <div>
            <Child1 changeChild2Color={(color) => {this.onChild2BgColorChange(color)}}/>
            <Child2 bgColor={this.state.child2BgColor}/>
        </div>
        );
    }

}