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How to create customized dynamic table in React

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Created by:

jarlh

635

Hi everyone! 👋 😊

Last week I had a problem with creating a dynamic table in React, so I thought that maybe someone will find this solution helpful.

Effect of this short post:

I took several steps in the solution below:

I created a dynamic table based on array,
Each table consists of a header and some data records,
The header is fixed and keeps the same amount of columns,
While creating records I used map() function to convert array items into React elements.

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

Runnable example:

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// 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 App = () => {
    const students = [
        { id: 1, name: 'Tom',  age: 25, favFruit: '🍏' },
        { id: 2, name: 'Adam', age: 43, favFruit: '🍌' },
        { id: 3, name: 'Mark', age: 16, favFruit: '🍊' },
        { id: 4, name: 'John', age: 29, favFruit: '🍒' }
    ];
    return (
      <div>
        <table style={tableStyle}>
          <tbody>
            <tr>
              <th style={thStyle}>Id</th>
              <th style={thStyle}>Name</th>
              <th style={thStyle}>Age</th>
              <th style={thStyle}>Favourite Fruit</th>
            </tr>
            {students.map(({ id, name, age, favFruit }) => (
              <tr key={id}>
                <td style={tdStyle}>{id}</td>
                <td style={tdStyle}>{name}</td>
                <td style={tdStyle}>{age}</td>
                <td style={tdStyle}>{favFruit}</td>
              </tr>
            ))}
          </tbody>
        </table>
      </div>
    );
};
​
const root = document.querySelector('#root');
ReactDOM.render(<App />, root );