What Is Table Data Structure?

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Larry Thompson

A table is a fundamental data structure in HTML that allows you to organize and present data in a structured manner. It consists of rows and columns, where each cell holds a specific piece of information. Tables are commonly used for displaying tabular data, such as financial records, product listings, or comparison charts.

Table Structure

A table in HTML is created using the <table> element. Inside the table, you define rows using the <tr> (table row) element. And within each row, you define cells using the <td> (table data) element.

Here’s an example of a basic table structure:

<table>
  <tr>
    <td>Cell 1</td>
    <td>Cell 2</td>
    <td>Cell 3</td>
  </tr>
  <tr>
    <td>Cell 4</td>
    <td>Cell 5</td>
    <td>Cell 6</td>
  </tr>
</table>

This code will render a table with two rows and three columns.

Table Headers

To provide context and label the columns or rows in your table, you can use the <th> (table header) element. The <th> elements are placed within the <tr> element, typically at the beginning of the table.

Here’s an example:

<table>
  <tr>
    <th>Header 1</th>
    <th>Header 2</th>
    <th>Header 3</th>
  </tr>
  <tr>
    <td>Cell 1</td>
    <td>Cell 2</td>
    <td>Cell 3</td>
  </tr>
</table>

The first row is treated as the header row and is rendered with bold text by default, thanks to the <th> element.

Table Styling

In addition to the basic structure, you can apply various CSS styles to your table to enhance its appearance. For example, you can use CSS properties like border, background-color, and padding to customize the look of your table.

To add borders to your table, you can use CSS like this:

table {
  border-collapse: collapse;
}

table, th, td {
  border: 1px solid black;
}

This code will collapse the borders between cells and give them a black color. You can modify these styles according to your design preferences.

Summary

  • A table in HTML is created using the <table>, <tr>, and <td> elements.
  • You can label the columns or rows using the <th> element.
  • Applying CSS styles allows you to customize the appearance of your table.

Tables are a powerful way to display and organize data in HTML. With proper use of table structure and styling, you can create visually engaging and informative tables for your web pages.

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