HTML | DOM ColumnGroup span Property
The ColumnGroup span Property in HTML DOM is used to set or return the value of the span attribute of a colgroup element. The span attribute is used to define the number of column that a <colgroup> element should span.
Syntax:
- It returns the ColumnGroup span property.
columngroupObject.span
- It is used to set the ColumnGroup span property.
columngroupObject.span = number
Property Values: It contains single value number which specify the number of <colgroup> should span.
Return value: It returns a numeric value which represents the number of columns.
Example 1: This example returns the span property.
<!DOCTYPE html> <html> <head> <title> HTML DOM ColumnGroup span property </title> <style> #myColGroup { background: green; } table { color: white; margin-left: 180px; background: yellow; } #Geek_p { color: green; font-size: 30px; } td { padding: 10px; } </style> </head> <body style="text-align:center;"> <h1 style="color:green;"> GeeksForGeeks </h1> <h2>HTML | DOM ColumnGroup span Property</h2> <table> <colgroup id="myColGroup" span="2"></colgroup> <tr> <th>S.No</th> <th>Title</th> <th>Geek_id</th> </tr> <tr> <td>Geek_1</td> <td>GeekForGeeks</td> <th>Geek_id_1</th> </tr> <tr> <td>Geek_2</td> <td>GeeksForGeeks</td> <th>Geek_id_2</th> </tr> </table> <br> <button onclick="myGeeks()"> Click </button> <h4> <p id="Geek_p" style="color:green"></p> </h4> <!-- Script to use ColumnGroup span Property --> <script> function myGeeks() { var x = document.getElementById("myColGroup").span; document.getElementById("Geek_p").innerHTML = x; } </script> </body> </html> |
Output:
Before Clicking the Button:
After Clicking the Button:
Example 2: This example sets the span Property.
<!DOCTYPE html> <html> <head> <title> HTML | DOM ColumnGroup span property </title> <style> #myColGroup { background: green; } table { color: white; margin-left: 180px; background: yellow; } #Geek_p { color: green; font-size: 30px; } td { padding: 10px; } </style> </head> <body style="text-align:center;"> <h1 style="color:green;"> GeeksForGeeks </h1> <h2>HTML | DOM ColumnGroup span Property</h2> <table> <colgroup id="myColGroup" span="2"> </colgroup> <tr> <th>S.No</th> <th>Title</th> <th>Geek_id</th> </tr> <tr> <td>Geek_1</td> <td>GeekForGeeks</td> <th>Geek_id_1</th> </tr> <tr> <td>Geek_2</td> <td>GeeksForGeeks</td> <th>Geek_id_2</th> </tr> </table> <br> <button onclick="myGeeks()"> Click </button> <h4> <p id="Geek_p" style="color:green"></p> </h4> <!-- Script to use DOM ColumnGroup span Property --> <script> function myGeeks() { var x = document.getElementById("myColGroup").span = "4"; document.getElementById("Geek_p").innerHTML = "The value of the span attribute was" + " changed to " + x; } </script> </body> </html> |
Output:
Before Clicking the Button:
After Clicking the Button:
Supported Browsers: The browser supported by DOM Colgroup span property are listed below:
- Google Chrome
- Internet Explorer
- Firefox
- Opera
- Safari
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