d3.csv在console.log中返回index.html内容 [英] d3.csv returns index.html content in console.log

问题描述

我正在将d3 v5与reactJS一起使用.我正在调用"List"类中​​的d3.csv，如下所示:

I am using d3 v5 with reactJS. I am calling d3.csv inside react 'List' class like following:

import React from 'react';
import * as d3 from 'd3';

class List extends React.Component{

componentDidMount(){
d3.csv("./data/data.csv").then(function(d, error){
    console.log(d);
});
}

render(){
        return(
        <div> </div>
        );
    }
} 
  export default List;

并且列表将在以下"App"类中导入

and List is being imported in following 'App' class

import React, { Component } from 'react';
import logo from './logo.svg';
import List from './components/list/List';
import './App.css';

class App extends Component {
  render() {
    return (
      <div className="App">
        <header className="App-header">
          <img src={logo} className="App-logo" alt="logo" />
          <h1 className="App-title">Welcome to React</h1>
        </header>          
        <List/> 
      </div>      
    );
  }
}
 export default App;

以下是"index.js"代码:

Following is the 'index.js' code:

import React from 'react';
import ReactDOM from 'react-dom';
import './index.css';
import App from './App';
import registerServiceWorker from './registerServiceWorker';

ReactDOM.render(<App />, document.getElementById('root'));
registerServiceWorker();

'root'是index.html中的div ID.通过在d3.csv内的列表文件中调用console.log，可以在控制台中获取index.html文件的内容.但是我想要CSV内容.

'root' is a div id in index.html. By calling console.log in List file inside d3.csv I am getting content of index.html file in the console. But I want CSV content.

推荐答案

我遇到了同样的问题，这就是解决问题的方法.检查数据是否与index.html文件位于同一目录中.就我而言，我的index.html文件位于public/文件夹中，因此我创建了public/data/data.csv.然后，您可以尝试d3.csv('./data/data', function(data){...})读取数据.

I had the same issue and here's how I solved it. Check if the data is in the same directory as the index.html file. In my case, my index.html file is in the public/ folder, so I created public/data/data.csv. You can then try d3.csv('./data/data', function(data){...}) to read in the data.

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