Javascript react.js foreach变量错误_Javascript_Reactjs

Javascript react.js foreach变量错误

javascript reactjs

Javascript react.js foreach变量错误,javascript,reactjs,Javascript,Reactjs,为什么控制台中没有定义我获取的记录？它也不会打印任何值 this.props.records.forEach(function(record){ numbers.push( <tr key={record.id} > <td>{record.title}</td> </tr>) }) 数组可能包含一些未定义的值（例如，[{id:1}，未定义，{id:2}

为什么控制台中没有定义我获取的记录？它也不会打印任何值

this.props.records.forEach(function(record){ 
      numbers.push(        
        <tr key={record.id} >
          <td>{record.title}</td>
        </tr>)
      })

数组可能包含一些未定义的值（例如，

[{id:1}，未定义，{id:2}]

）

您能复制/粘贴原始错误吗？在哪一行出现了错误？在控制台中用错误更新了问题。在前面添加

console.log（records）

，查看是否有未定义的错误

Uncaught ReferenceError: record is not definedReact.createClass.onChange @ Inline JSX script:137React.createClass.changeHandler @ Inline JSX script:82ReactClass.createClass._handleChange @ react-with-addons.js:9067executeDispatch @ react-with-addons.js:3307forEachEventDispatch @ react-with-addons.js:3295executeDispatchesInOrder @ react-with-addons.js:3316executeDispatchesAndRelease @ react-with-addons.js:2689forEachAccumulated @ react-with-addons.js:19368EventPluginHub.processEventQueue @ react-with-addons.js:2896runEventQueueInBatch @ react-with-addons.js:11161ReactEventEmitterMixin.handleTopLevel @ react-with-addons.js:11187handleTopLevelImpl @ react-with-addons.js:11273Mixin.perform @ react-with-addons.js:18340ReactDefaultBatchingStrategy.batchedUpdates @ react-with-addons.js:9613batchedUpdates @ react-with-addons.js:16573ReactEventListener.dispatchEvent @ react-with-addons.js:11367

console.log(this.props.records);
// or set a debugger statement to inspect the state