Javascript 如何将常量变量作为React中的道具传递给组件?
我试图将wantedAirline变量传递到AirlineSection组件中,但我不断收到错误Javascript 如何将常量变量作为React中的道具传递给组件?,javascript,reactjs,state,Javascript,Reactjs,State,我试图将wantedAirline变量传递到AirlineSection组件中,但我不断收到错误TypeError:无法从AirlineSection组件内部读取未定义的属性“wantedAirline” render() { const wantedAirline = this.state.wantedAirline.filter(p => p.name.includes(this.state.searchTerm) ) return (
TypeError:无法从AirlineSection组件内部读取未定义的属性“wantedAirline”
render() {
const wantedAirline = this.state.wantedAirline.filter(p =>
p.name.includes(this.state.searchTerm)
)
return (
<div>
<header>Pokemon Searcher</header>
<AirlineSection
wantedAirline = {wantedAirline}
airlines = {this.state.airlines}
handleDelete={this.handleDelete}/>
</div>
)
}
render(){
const wantedAirline=this.state.wantedAirline.filter(p=>
p、 name.includes(this.state.searchTerm)
)
返回(
口袋妖怪搜索者
)
}
AirlineSection组件如下所示:
function AirlineSection(props){
console.log(props, 'airline section props');
return(
<div>
<h2>Airlines</h2>
{props.airlines.map(airline => <AirlineCard key={airline.id} wantedAirline={this.wantedAirline} airline={airline} handleDelete={props.handleDelete}/>)}
</div>
)
}
功能航线部分(道具){
控制台日志(道具,“航空公司部分道具”);
返回(
航班
{props.airlines.map(airline=>)}
)
}
将wantedAirline={this.wantedAirline}
替换为wantedAirline={props.wantedAirline}
,就像AirlineSection
是您的功能组件一样
render() {
const wantedAirline = this.state.wantedAirline.filter(p =>
p.name.includes(this.state.searchTerm)
)
return (
<div>
<header>Pokemon Searcher</header>
<AirlineSection
wantedAirline = {wantedAirline}
airlines = {this.state.airlines}
handleDelete={this.handleDelete}/>
</div>
)
}
您正在将wantedAirline
作为道具传递,因此您还必须使用道具访问它