What is the best way to align table headers with their respective content?

Question

What is the best way to align table headers with their respective content?

Ensuring proper alignment of table columns with their respective headers is crucial. Consider an array of headers:

const titles = ['name', 'lastname', 'age']

When displaying the table, the content may be like this:

const content = ['lastnameText', 15, 'nameText']

The challenge lies in the fact that the order of items in the content array doesn't always match the order of headers.

<table>
  <thead>
    {titles.map(item => (
      <tr>{item}</tr>
    ))}
  </thead>
  <tbody>
    {content.map(item => (
      <tr>{item}</tr>
    ))}
  </tbody>
</table>

Upon rendering, the current result may show the following layout:

   name       lastname     age
lastnametext     15      nametext

As you can see, the header columns are not correctly aligned. The desired output should resemble this:

   name      lastname     age
 nameText  lastnametext   15

javascript html css reactjs html-table

Answer 1

Answer №1

After revising this response, I have come up with a solution to address your needs. Take a look at this code.

*Note: If the fields of all rows in your content are in the correct order, and only the headers' arrangement is causing issues - this code should suffice.

In order to make it function as a reusable table, capable of handling situations where the content order is jumbled up, I implement a sorting mechanism for the content data before rendering:

  const allSortedContent = []; 

  for (const row in props.content) {
    const sortedRowValues = []; 
    // Sorting the values of each row according to the header order.
    props.headers.forEach((header) => {
      const value = props.content[row][header];
      sortedRowValues.push(<td>{value}</td>);
    });
    allSortedContent.push(<tr>{sortedRowValues}</tr>);
  }

This code snippet processes the array content consisting of row objects. For every row, I rearrange the fields to align with the header sequence. At each step, I utilize the sortedRowValues array to store the <td> elements of the current row (matching the headers' order).

Upon completing each row, I add the mapped row (sortedRowValues) to the allSortedContent array which holds all the sorted rows.

Lastly, within the table body section, I simply display the allSortedContent.

return (
    <div>
      <table>
        <thead>
          <tr>
            {props.headers.map((item) => (
              <td>{item}</td>
            ))}
          </tr>
        </thead>
        <tbody>{allSortedContent}</tbody>
      </table>
    </div>
  );

The data structure passed through props must adhere to this format, but disorder is acceptable:

const headers = ['age', 'lastName', 'name'];

const content = [
    { name: 'Jule', lastName: 'Abc', age: '24' },
    { lastName: 'Park', age: '32', name: 'Josh' },
  ];

Answer 2

After revising this response, I have come up with a solution to address your needs. Take a look at this code.

*Note: If the fields of all rows in your content are in the correct order, and only the headers' arrangement is causing issues - this code should suffice.

In order to make it function as a reusable table, capable of handling situations where the content order is jumbled up, I implement a sorting mechanism for the content data before rendering:

  const allSortedContent = []; 

  for (const row in props.content) {
    const sortedRowValues = []; 
    // Sorting the values of each row according to the header order.
    props.headers.forEach((header) => {
      const value = props.content[row][header];
      sortedRowValues.push(<td>{value}</td>);
    });
    allSortedContent.push(<tr>{sortedRowValues}</tr>);
  }

This code snippet processes the array content consisting of row objects. For every row, I rearrange the fields to align with the header sequence. At each step, I utilize the sortedRowValues array to store the <td> elements of the current row (matching the headers' order).

Upon completing each row, I add the mapped row (sortedRowValues) to the allSortedContent array which holds all the sorted rows.

Lastly, within the table body section, I simply display the allSortedContent.

return (
    <div>
      <table>
        <thead>
          <tr>
            {props.headers.map((item) => (
              <td>{item}</td>
            ))}
          </tr>
        </thead>
        <tbody>{allSortedContent}</tbody>
      </table>
    </div>
  );

The data structure passed through props must adhere to this format, but disorder is acceptable:

const headers = ['age', 'lastName', 'name'];

const content = [
    { name: 'Jule', lastName: 'Abc', age: '24' },
    { lastName: 'Park', age: '32', name: 'Josh' },
  ];

Answer 3

Answer №2

This solution should resolve your issue as you have an array and want to display keys in the header and items in the body. The assumption made is outlined below.

<table>
  <thead>
    {Object.keys(contents).map((key) => {
        <tr>{key}</tr>
    })}
  </thead>
  <tbody>
    {contents.map(item => (
      <tr>{item}</tr>
    ))}
  </tbody>
</table>

Answer 4

This solution should resolve your issue as you have an array and want to display keys in the header and items in the body. The assumption made is outlined below.

<table>
  <thead>
    {Object.keys(contents).map((key) => {
        <tr>{key}</tr>
    })}
  </thead>
  <tbody>
    {contents.map(item => (
      <tr>{item}</tr>
    ))}
  </tbody>
</table>

What is the best way to align table headers with their respective content?

Answer №1

Answer №2

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