How to Expand and Collapse Table Rows with jQuery?

Expand and Collapse Table Rows with jQuery

Problem:

Expand and collapse table rows when a specific header column is clicked, limiting the expansion/collapse to rows beneath the clicked header.

Proposed Solution:

1. Identify the Header Rows: Add a class, such as "header," to the header rows.
2. Toggle Expansion/Collapse: Use jQuery's .nextUntil() method to select all rows beneath the clicked header until the next header is encountered. Then, use .slideToggle() to toggle the visibility of these rows.

Code Snippet:

<code class="javascript">$('.header').click(function() {
    $(this).nextUntil('tr.header').slideToggle(1000);
});</code>

HTML Structure:

<code class="html"><table border="0">
  <tr class="header">
    <td colspan="2">Header</td>
  </tr>
  <tr>
    <td>data</td>
    <td>data</td>
  </tr>
  <tr>
    <td>data</td>
    <td>data</td>
  </tr>
</table></code>

Additional Features:

• Expand/Collapse Icon: Use a span element within the header cells to display an expand or collapse icon. Update the icon based on the current state.
• Promise Usage: Use jQuery's .promise() method to handle asynchronous operations, such as animation.
• CSS Pseudo-Element: Utilize a CSS pseudo-element to represent the expansion/collapse indicator and toggle a class on the header to control visibility.

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