问题描述
我在路由器组件中使用了“历史”对象,它是 AddMovie 组件。但是在三行之后,我再次使用它并给出了这个错误: 类型错误:无法解构 'undefined' 的属性 'history',因为它是未定义的。
77 | <Route path="/add" render = { ({history}) => (
78 | <AddMovie onAddMovieprop={(newMovie) => { this.addMovie(newMovie); history.push("/"); }} />
79 | )}>
80 | </Route>
> 81 | <Route path="/edit/:id" render = { ( props,{history} ) => (
| ^ 82 | <EditMovie {...props} onEditMovieProp = {(id,updatedMovie) => { this.editMovie(id,updatedMovie); this.props.history.push("/"); }}/>
83 | )}>
84 | </Route>
这是我的 App.js 代码渲染的一部分:
render(){
let filteredMovies = this.state.movies.filter(
movie => { return (movie.name.indexOf(this.state.searchQuery.toLowerCase()) !== -1) }
).sort((a,b) => {
return a.name > b.name ? 1 : b.name> a.name ? -1 : 0;
})
return (
<Router>
<div className="App">
<Switch>
<Route path="/" exact render = {() => (
<div className="container" >
<Searcher searchMovieProp = {this.searchMovie} addHistoryProp = {this.addHistory} />
<MovieList movies= {filteredMovies} removeMovieProp = {this.removeMovie} />
</div>
)}>
</Route>
<Route path="/add" render = { ({history}) => (
<AddMovie onAddMovieprop={(newMovie) => { this.addMovie(newMovie); history.push("/"); }} />
)}>
</Route>
<Route path="/edit/:id" render = { ( props,{history} ) => (
<EditMovie {...props} onEditMovieProp = {(id,updatedMovie); history.push("/"); }}/>
)}>
</Route>
</Switch>
</div>
</Router>
);
}
解决方法
这是你需要做的:
<Route
path="/edit/:id"
render={({history,...props}) => (
<EditMovie
{...props}
onEditMovieProp={(id,updatedMovie) => {
this.editMovie(id,updatedMovie);
history.push("/");
}}
/>
)}
></Route>;
,
它给你错误,因为 this.props
在该行未定义
改变
this.props.history.push("/");
到
history.push("/")