react PropTypes校验传递的值操作示例

本文实例讲述了react proptypes校验传递的值操作。分享给大家供大家参考，具体如下：

校验传递的值：

import react, { component, fragment } from 'react';
import list from './list.js';
 
class test extends component {
  constructor(props) {
    super(props);
    this.state={
      inputvalue:'aaa',
      list:['睡觉','打游戏'],
    }
    // this.add=this.add.bind(this);
  }
 
  addlist() {
    this.setstate({
      list:[...this.state.list,this.state.inputvalue],
      inputvalue:''
    })
  }
 
  change(e) {
    this.setstate({
      inputvalue:e.target.value
    })
  }
 
  delete(i) {
    // console.log(i);
    const list = this.state.list;
    list.splice(i,1);
    this.setstate({
      list:list
    })
  }
 
  render() { 
    return (
      <fragment>
      <div>
        <input value={this.state.inputvalue} onchange={this.change.bind(this)}/>
        <button onclick={this.addlist.bind(this)}>添加</button>
      </div>
      <ul>
        {
          this.state.list.map((v,i)=>{
            return(
                <list key={i} content={v} index={i} delete={this.delete.bind(this)} />
            );
          })
        }
      </ul>
      </fragment>
    );
  }
}
export default test;

import react, { component } from 'react';
import proptypes from 'prop-types';
 
class list extends component {
  constructor(props) {
    super(props);
    this.delete = this.delete.bind(this);
  }
 
  render() { 
    return (
    <li
      onclick={this.delete}
    >{this.props.name}{this.props.content}</li>
    );
  }
 
  delete=() => {
    this.props.delete(this.props.index);
  }
}
 
//传值校验
 
list.proptypes={
  name:proptypes.string.isrequired,
  content:proptypes.string,
  index:proptypes.number,
  delete:proptypes.func
}
 
//设置默认值：
 
list.defaultprops={
  name:'张三'
}
 
export default list;

希望本文所述对大家react程序设计有所帮助。