HTML <object> id Attribute

The id attribute on an <object> tag assigns an identifier to the object element. The identifier must be unique across the page.

Example

#

An id attribute on an <object> element.

PDF cannot be displayed.
<object id="pdf-object" data="/media/sample.pdf"
        type="application/pdf" style="width:100%;height:350px;">
   PDF cannot be displayed.
</object>

Using id

The id attribute assigns an identifier to the <object> element.

The identifier must be unique across the page.

The id allows programmatic access to the <object> element.

Tip:  id is a global attribute that can be applied to any HTML element.


Syntax

<object id="identifier" />

Values

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Value Description
identifier A unique alphanumeric string. The id value must begin with a letter ([A-Za-z]) and may be followed by any number of letters, digits ([0-9]), hyphens (-), underscores (_), colons (:), and periods (.).

More Examples

An <object> element with a unique id.
Clicking the button displays the filename of the embedded object.

PDF cannot be displayed.

<object id="myobject" data="/media/sample.pdf"
        type="application/pdf" style="width:100%;height:350px;">
   PDF cannot be displayed.
</object>
  
<br /><br />
<button onclick="show();">Show pdf filename</button>

<script>
  let show = () => {
    let element = document.getElementById("myobject");
    alert("Filename = " + element.data);
  }
</script>

Code explanation

The id attribute assigns a unique identifier for the <object>.

Clicking the button calls JavaScript which locates the <object> using the id.

Finally, the data value of the <object> is displayed in an alert box.


Browser support

Here is when id 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

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