A data-* attribute on an <object> tag attaches additional data to the object element.
To create a custom attribute, replace * with a lowercase string, such as data-id, data-status, or data-location.
A data-content attribute on an <object> element.
<object data-content="Legal file" data="/media/sample.pdf"
type="application/pdf" style="width:100%;height:500px;">
PDF cannot be displayed.
</object>
The data-* attribute adds custom information to an <object> element.
The * part is replaced with a lowercase string, such as data-id, data-cost, or data-location.
An <object> element can have any number of data-* attributes, each with their own name.
Using data-* attributes reduces the need for requests to the server.
Note: The data-* attribute is not visible and does not change the appearance of the object.
<object data-*="value">
Note: The * part can be any string, for example data-id, data-cost, data-supplier, etc.
| Value | Description |
|---|---|
| value | A string value. Can be numeric, alphanumeric, JSON, etc. |
An <object> tag with custom data-content attribute.
Clicking the button will display the content of the pdf document.
<object data-content="Legal brief" id="myobject"
data="/media/sample.pdf" type="application/pdf"
style="width:100%;height:450px;">
PDF cannot be displayed.
</object>
<br/><br/>
<button onclick="show();">Show data</button>
<script>
let show = () => {
let element = document.getElementById("myobject");
alert("Content = " + element.getAttribute('data-content'));
}
</script>
The <object> tag has a custom data-filename attribute.
The data-filename attribute stores the resource filename of the embedded object.
Clicks are handled by the onclick event.
Onclick invokes a JavaScript function that extracts and displays the <object> file name.
Note: Notice how the file name displays immediately without server call.
Here is when data-* support started for each browser:
 Chrome
|
1.0 | Sep 2008 |
 Firefox
|
1.0 | Sep 2002 |
 IE/Edge
|
1.0 | Aug 1995 |
 Opera
|
1.0 | Jan 2006 |
 Safari
|
1.0 | Jan 2003 |
Back to <object>
