Question

我陷入了React的基本原则：/ 有代码生成包含json数据的表：

import React from 'react'    
import { DataTable } from 'react-data-components';

function buildTable(data) {
    const tableColumns = [
        { title: 'Author', prop: 'author' },
        { title: 'Country', prop: 'country' },
        { title: 'Title', prop: 'title' },
     ];

    return (
        <DataTable
            className="container"
            keys="id"
            columns={tableColumns}
            initialData={data}
            initialPageLength={5}
         />
    );
}


let url = 'https://api.myjson.com/bins/1sbz3lp';

fetch(url)
    .then(res => res.json())
    .then((rows) => {
        ReactDOM.render(buildTable(rows), document.getElementById('root'));
    });

它可以在index.js中完成工作但是可以在React组件中呈现表吗？

const Home = () => (
     //renders buildTable(rows)
)

export default Home

非常感谢所有可能的帮助，期待。

Answer 1

您可以将这些行作为主页组件的道具传递，然后执行任何操作。

fetch(url)
.then(res => res.json())
.then((rows) => {
    ReactDOM.render(<Home data={rows} />, document.getElementById('root'));
});

现在您可以使用this.props.data获取行信息，并在组件中的buildTable中执行您正在执行的操作。

 import React from 'react'

 const Home = () => (
     //this.props.data will give you the rows data and do whatever you want here.
     //renders buildTable(rows)
 )

 export default Home

Answer 2

将buildTable()移至Home.js，然后在index.js中呈现主页组件，将rows作为道具传递：

<强> Home.js

import React from 'react'    
import { DataTable } from 'react-data-components'

function buildTable(data) {
  const tableColumns = [
    { title: 'Author', prop: 'author' },
    { title: 'Country', prop: 'country' },
    { title: 'Title', prop: 'title' },
  ]

  return (
    <DataTable
      className="container"
      keys="id"
      columns={tableColumns}
      initialData={data}
      initialPageLength={5}
    />
  )
}

const Home = props => buildTable(props.data)

export default Home

<强> index.js

import ReactDOM from 'react-dom'
import Home from './Home'

let url = 'https://api.myjson.com/bins/1sbz3lp'

fetch(url)
  .then(res => res.json())
  .then(rows => {
    ReactDOM.render(<Home data={rows} />, document.getElementById('root'));
  })

编辑有状态主页组件

<强> Home.js

import React, { Component } from 'react'
import { DataTable } from 'react-data-components'

const url = 'https://api.myjson.com/bins/1sbz3lp'

class Home extends Component {
  state = {
    data: []
  }

  buildTable = (data) => {
    const tableColumns = [
      { title: 'Author', prop: 'author' },
      { title: 'Country', prop: 'country' },
      { title: 'Title', prop: 'title' },
    ]

    return (
      <DataTable
        className="container"
        keys="id"
        columns={tableColumns}
        initialData={data}
        initialPageLength={5}
      />
    )
  }

  componentDidMount() {
    fetch(url)
      .then(res => res.json())
      .then((rows) => {
        this.setState({ data: rows })
      })
  }

  render() {
    return <div>{this.buildTable(this.state.data)}</div>
  }
} 

export default Home

获取Rel组件的URL

2 个答案: