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How to create customized dynamic table in React (with dynamic header)

3 points
Created by:
Jacob
342

Hello again! 👋 😊

In the comment section under my previous post there was quite a discussion about creating a more dynamic solution for dynamic tables in React, so here we are! 🚀

Today I wanna show you a more dynamic solution than the previous one. 🔥

Effect of this short post:

React - customized dynamic table
React - customized dynamic table

In below example I used the following concept:

  • table is described by columns and data properties,
  • table is composed of header and some data records,
  • the columns array allows us to decide which column names we want to display in the data rows, 
  • using map() function we are able to reduce the amount of code – columns and data arrays are mapped into React components.

Note:

Remember that each element should have a unique key - it helps React optimally manage changes in the DOM. Such a key may be for example the path assigned to each element of the table.

Practical example:

// ONLINE-RUNNER:browser;

// Note: Uncomment import lines during working with JSX Compiler.
// import React from 'react';
// import ReactDOM from 'react-dom';

const tableStyle = {
    border: '1px solid black',
    borderCollapse: 'collapse',
    textAlign: 'center',
    width: '100%'
}

const tdStyle = {
  	border: '1px solid #85C1E9',
    background: 'white',
    padding: '5px'
};

const thStyle = {
  	border: '1px solid #3498DB',
    background: '#3498DB',
  	color: 'white',
    padding: '5px'
};

const Table = ({ id, columns, data }) => (
  <table style={tableStyle}>
    <tbody>
      <tr>
        {columns.map(({ path, name }) => (
          <th style={thStyle} key={path}>{name}</th>
        ))}
      </tr>
      {data.map((rowData) => (
        <tr key={rowData[id]}>
          {columns.map(({ path }) => (
            <td style={tdStyle} key={path}>
              {rowData[path]}
            </td>
          ))}
        </tr>
      ))}
    </tbody>
  </table>
);

// Example use --------------------

const App = () => {
  const columns = [
    { path: "id",   name: "ID" },
    { path: "name", name: "Name" },
    { path: "age",  name: "Age" },
    { path: "favFruit",  name: "Favourite Fruit" },
  ];
  const data = [
    { id: 1, name: 'Kate',  age: 25, favFruit: '🍏' },
    { id: 2, name: 'Tom',   age: 23, favFruit: '🍌' },
    { id: 3, name: 'Ann',   age: 26, favFruit: '🍊' },
    { id: 4, name: 'Jack',  age: 21, favFruit: '🍒' }
  ];
  return (
    <div>
      <Table id="id" columns={columns} data={data} />
    </div>
  );
};

const root = document.querySelector('#root');
ReactDOM.render(<App />, root );

References

ReactJS - Blog posts

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