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我在是新阵营的js传数据从小孩到在母体阵营节目类型错误
我试图通过从子到父值和同时示出通过地图部件那里示出了在所述发送/触发一个错误功能
render(){
var choices =['krass', 'Einfach', 'Dazu', 'Dafur'];
const listitem = choices.map(function(name, index){
<Choice onIncreaseCount={this.increaseCount} key={index} option={name} /> ;
});
return (
<div className="col-md-12 row">
{listitem}
</div>
);
}
下面错误信息显示
react-dom.development.js:10289 The above error occurred in the <Choices> component:
in Choices (created by App)
in div (created by App)
in div (created by App)
in App
Consider adding an error boundary to your tree to customize error handling behavior.
boundaries.
logCapturedError @ react-dom.development.js:10289
captureError @ react-dom.development.js:11082
renderRoot @ react-dom.development.js:10933
performWorkOnRoot @ react-dom.development.js:11556
performWork @ react-dom.development.js:11509
requestWork @ react-dom.development.js:11420
scheduleWorkImpl @ react-dom.development.js:11274
scheduleWork @ react-dom.development.js:11231
scheduleTopLevelUpdate @ react-dom.development.js:11735
updateContainer @ react-dom.development.js:11773
(anonymous) @ react-dom.development.js:15900
unbatchedUpdates @ react-dom.development.js:11644
renderSubtreeIntoContainer @ react-dom.development.js:15899
render @ react-dom.development.js:15964
(anonymous) @ Inline Babel script:141
n @ babel.min.js:12
r @ babel.min.js:12
o @ babel.min.js:12
u @ babel.min.js:12
E @ babel.min.js:1
codepen链路是https://codepen.io/jahid93/pen/VypwjO
错误是说这个。 increaseCount未捕获类型错误 我认为它不涉及返回 看看codepen –
@ Md.JahidulIslam我已经添加了一个运行的示例与您的代码的答案。请注意,我使用箭头函数来处理'this'的上下文 –