React.createClass中的范围问题

Question

我有一个范围问题，我正在努力解决。

我将getTrackNotes导入到es6模块中，并且我想根据下面的内容在React类中引用它，但是这设置为Track（React类）。

我该如何参考？

import { getTrackNotes } from '../utils/immutableInstruments'; 

const Track = React.createClass({ 

    componentDidMount() { 

     const { trackId } = this.props.params; 

     function updateTimeSequencer (socket, state, getTrackNotes, TimeSequencer, instruments, trackId) 
     { 

      //I want to call getTrackNotes here, but the scope is set to the Track React class 
      **getTrackNotes();** 

     } 
     var instruments = this.props.instruments; 

     socket.on('state', updateTimeSequencer.bind(this, socket)); 
    } 

Answer 1

你getTrackNotes功能会从顶部范围被继承，但是你是一个同名函数参数覆盖它。单从函数的参数列表中删除getTrackNotes或重命名参数别的东西：

function updateTimeSequencer (socket, state, thisIsSomethingElse, TimeSequencer, instruments, trackId)