Final answer:
To hide and show table rows in HTML, you use CSS to change the display property of the <tr> elements, often in conjunction with JavaScript to toggle between 'none' and 'table-row'. You can set this directly in the style attribute or change it dynamically with a JavaScript function.
Step-by-step explanation:
To hide and show table rows in HTML, you can use CSS to change the display property of the table row elements (<tr>). Initially, you might have a table where all rows are visible. To hide a specific row, you can set the display property of that row to 'none'. This can be done directly in the style attribute of the <tr> element or through CSS classes using JavaScript to toggle the visibility.
Here is an example of how you can hide a row using inline CSS:
<tr>
<td>This row is hidden.</td>
</tr>
To show the row, you simply change the display property back to 'table-row', which is the default for table row elements:
<tr>
<td>This row is visible.</td>
</tr>
To toggle between hidden and visible states, JavaScript is commonly used. Here is a simple function that changes the display property:
function toggleRow(rowId) {
var row = document.getElementById(rowId);
row.style.display = row.style.display === 'none' ? 'table-row' : 'none';
}
When calling this function, you pass the ID of the row you want to toggle. It's important to ensure that your table rows have unique IDs if you are using this method.