React-代码规范

  constructor(props){
    ...
    this.handleInputChange=this.handleInputChange.bind(this);
  }
  render() {
    return (
          ...
          <input onChange={this.handleInputChange}/>
          ...
    );
  }

handleDelete(){
      const {handleDeleteItem,index}=this.props;
      handleDeleteItem(index)
  }

this.setState(()=>({
      inputValue:value
    }));

this.setState((prevState)=>{
      const list=[...prevState.list];
      list.splice(index,1);
      return {list};
    });