通过反应路由器中的道具传递功能 [英] Pass function by props in react router
问题描述
例如,我知道如何在反应路由器中传递道具,例如string
类型.但是当我尝试传递功能道具时,我遇到了一个问题.在我的孩子部分,这个道具是"undefined"
.
I know how to pass props in the react router like string
type for example. But I have a problem when I try to pass props of function. On my children component, this props is "undefined"
.
我的链接示例:
<Link to={'/Content/' + this.props.index + '/' + this.props.decreaseIndexProject}>Page n°1</Link>
索引props是一个数字,所以我可以在子组件上获取它,但不能在decreaseIndexProject
props上获取.
The index props is a number, so I can get it on my children component, but not the decreaseIndexProject
props.
我使用PropType:
I use PropType :
NavBar.propTypes = {
indexProject: PropTypes.number,
decreaseIndexProject: PropTypes.func
};
我的路由器组件:
<Router>
<Switch>
<Route path="/Content/:index/:decrease" exact name="content" component={Content} />
</Switch>
</Router>
Maby还有另一种传递函数的方式吗?谢谢您的帮助.
Maby there is an other way to pass a function ? Thank you for your help.
推荐答案
您可以使用Link like这样将功能作为位置状态传递
You can pass the function as location state with Link like
<Link to={{
pathname: '/Content/' + this.props.index
state: {decrease: this.props.decreaseIndexProject}
}}>Page n°1</Link>
和
<Router>
<Switch>
<Route path="/Content/:index" exact name="content" component={Content} />
</Switch>
</Router>
现在in Content
,您可以像this.props.location.state.decrease
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