Question

我正在使用react-redux连接函数和withRouter函数，我也在尝试使用compose()。这是代码：

export default compose (
    withRouter,
    connect(mapStateToProps)
)(Dashboard);

但是我收到了下一个错误：

Uncaught TypeError: Converting circular structure to JSON
    at Object.stringify (<anonymous>)
    at wrapWithConnect (connectAdvanced.js:84)
    at applyFunctor (index.js:124)
    at index.js:144
    at Array.reduce (<anonymous>)
    at ComposedComponent (index.js:143)
    at ReactCompositeComponent.js:305
    at measureLifeCyclePerf (ReactCompositeComponent.js:75)
    at ReactCompositeComponentWrapper._constructComponentWithoutOwner (ReactCompositeComponent.js:304)
    at ReactCompositeComponentWrapper._constructComponent (ReactCompositeComponent.js:279)
    at ReactCompositeComponentWrapper.mountComponent (ReactCompositeComponent.js:187)
    at Object.mountComponent (ReactReconciler.js:45)
    at ReactCompositeComponentWrapper.performInitialMount (ReactCompositeComponent.js:370)
    at ReactCompositeComponentWrapper.mountComponent (ReactCompositeComponent.js:257)
    at Object.mountComponent (ReactReconciler.js:45)
    at ReactDOMComponent.mountChildren (ReactMultiChild.js:236)
    at ReactDOMComponent._createInitialChildren (ReactDOMComponent.js:703)
    at ReactDOMComponent.mountComponent (ReactDOMComponent.js:522)
    at Object.mountComponent (ReactReconciler.js:45)
    at ReactCompositeComponentWrapper.performInitialMount (ReactCompositeComponent.js:370)
    at ReactCompositeComponentWrapper.mountComponent (ReactCompositeComponent.js:257)
    at Object.mountComponent (ReactReconciler.js:45)
    at ReactCompositeComponentWrapper.performInitialMount (ReactCompositeComponent.js:370)
    at ReactCompositeComponentWrapper.mountComponent (ReactCompositeComponent.js:257)
    at Object.mountComponent (ReactReconciler.js:45)
    at ReactDOMComponent.mountChildren (ReactMultiChild.js:236)
    at ReactDOMComponent._createInitialChildren (ReactDOMComponent.js:703)
    at ReactDOMComponent.mountComponent (ReactDOMComponent.js:522)
    at Object.mountComponent (ReactReconciler.js:45)
    at ReactCompositeComponentWrapper.performInitialMount (ReactCompositeComponent.js:370)
    at ReactCompositeComponentWrapper.mountComponent (ReactCompositeComponent.js:257)
    at Object.mountComponent (ReactReconciler.js:45)
    at ReactCompositeComponentWrapper.performInitialMount (ReactCompositeComponent.js:370)
    at ReactCompositeComponentWrapper.mountComponent (ReactCompositeComponent.js:257)
    at Object.mountComponent (ReactReconciler.js:45)
    at ReactCompositeComponentWrapper.performInitialMount (ReactCompositeComponent.js:370)
    at ReactCompositeComponentWrapper.mountComponent (ReactCompositeComponent.js:257)
    at Object.mountComponent (ReactReconciler.js:45)
    at ReactCompositeComponentWrapper.performInitialMount (ReactCompositeComponent.js:370)
    at ReactCompositeComponentWrapper.mountComponent (ReactCompositeComponent.js:257)
    at Object.mountComponent (ReactReconciler.js:45)
    at mountComponentIntoNode (ReactMount.js:104)
    at ReactReconcileTransaction.perform (Transaction.js:143)
    at batchedMountComponentIntoNode (ReactMount.js:126)
    at ReactDefaultBatchingStrategyTransaction.perform (Transaction.js:143)
    at Object.batchedUpdates (ReactDefaultBatchingStrategy.js:62)
    at Object.batchedUpdates (ReactUpdates.js:97)
    at Object._renderNewRootComponent (ReactMount.js:319)
    at Object._renderSubtreeIntoContainer (ReactMount.js:401)
    at Object.render (ReactMount.js:422)

这里有什么问题？

Answer 1

connect返回一个接受组件的函数。所以，我认为如果你略微改变你的parens它会起作用：

export default compose(
    withRouter,
    connect(mapStateToProps)(Dashboard)
);

或者：

export default connect(mapStateToProps)(compose(
    withRouter,
    Dashboard
));

Answer 2

您可以按照Parnab Sanya

的说明使用它

export default withRouter(connect(mapStateToProps)(HomeComponent))

或者如果您有withStyles()，请使用此

export default withRouter(
compose(
   withStyles(HomeComponentStyle),

   connect(mapStateToProps)
)(HomeComponent));

Answer 3

export default withRouter(connect(mapStateToProps)(Dashboard))

效果很好，很短。

withRouter，connect（）和react-compose

3 个答案: