Javascript 语法错误/jshint与in-line&;ReactJS中的映射
这是我的代码,它产生了一个“预期的赋值或函数调用,而不是看到一个表达式”错误。我个人没有看到任何错误,我的修饰工作照常进行。我相信是JSHINT在这里召唤我:Javascript 语法错误/jshint与in-line&;ReactJS中的映射,javascript,reactjs,syntax,jshint,Javascript,Reactjs,Syntax,Jshint,这是我的代码,它产生了一个“预期的赋值或函数调用,而不是看到一个表达式”错误。我个人没有看到任何错误,我的修饰工作照常进行。我相信是JSHINT在这里召唤我: render() { return ( <div id="animalGallery"> {this.props.displayData.map(eachProfilePic => { this.state.selected === eachProfilePic.iconID ? (
render() {
return (
<div id="animalGallery">
{this.props.displayData.map(eachProfilePic => {
this.state.selected === eachProfilePic.iconID ? (
<a
class="animal selected"
onClick={() => this.profilePicClick(eachProfilePic.iconID)}
>
<img src={eachProfilePic.iconID} />
</a>
) : (
<a
class="animal"
onClick={() => this.profilePicClick(eachProfilePic.iconID)}
>
<img src={eachProfilePic.iconID} />
</a>
);
})}
</div>
);}
render(){
返回(
{this.props.displayData.map(eachProfilePic=>{
this.state.selected==eachProfilePic.iconID(
this.profilePicClick(eachProfilePic.iconID)}
>
) : (
this.profilePicClick(eachProfilePic.iconID)}
>
);
})}
);}
它在我的代码的第四行调用该错误,它似乎有任何错误吗?如果没有,是否有其他方法可以编写此代码而不触发JSHINT?您需要添加
返回
或删除{}
(或将其替换为()
)。当您在lambda周围使用{}
时,它需要返回完整的函数体,而不仅仅是表达式。以下是采用Joseph的答案后的正确代码:
拆下支架后:
render() {
return (
<div id="animalGallery">
{this.props.displayData.map(eachProfilePic =>
this.state.selected === eachProfilePic.iconID ? (
<a
class="animal selected"
onClick={() => this.profilePicClick(eachProfilePic.iconID)}
>
<img src={eachProfilePic.iconID} />
</a>
) : (
<a
class="animal"
onClick={() => this.profilePicClick(eachProfilePic.iconID)}
>
<img src={eachProfilePic.iconID} />
</a>
)
)}
</div>
);
}
render(){
返回(
{this.props.displayData.map(eachProfilePic=>
this.state.selected==eachProfilePic.iconID(
this.profilePicClick(eachProfilePic.iconID)}
>
) : (
this.profilePicClick(eachProfilePic.iconID)}
>
)
)}
);
}
否则,我们可以选择添加退货:
render() {
return (
<div id="animalGallery">
{this.props.displayData.map(eachProfilePic => {
return this.state.selected === eachProfilePic.iconID ? (
<a
class="animal selected"
onClick={() => this.profilePicClick(eachProfilePic.iconID)}
>
<img src={eachProfilePic.iconID} />
</a>
) : (
<a
class="animal"
onClick={() => this.profilePicClick(eachProfilePic.iconID)}
>
<img src={eachProfilePic.iconID} />
</a>
);
})}
</div>
);
}
render(){
返回(
{this.props.displayData.map(eachProfilePic=>{
返回this.state.selected==eachProfilePic.iconID(
this.profilePicClick(eachProfilePic.iconID)}
>
) : (
this.profilePicClick(eachProfilePic.iconID)}
>
);
})}
);
}