The dirname attribute on an <input> tag submits the element‘s text direction together with the input value.
Direction values can be ltr (left-to-right) or rtl (right-to-left).
An <input> element with a dirname attribute.
Submitting this form will send the text input value and its direction.
<form action="/tutorial/action.html">
<label for="firstname">First name</label><br />
<input type="text" id="firstname"
name="firstname" dirname="firstname.dir">
<br /><br />
<input type="submit" value="Submit">
</form>
The name of this attribute must be the input field name followed by .dir.
This attribute helps in identifying the correct direction for an input value.
Here is a list of the languages that are written from right-to-left (rtl):
<input name="input-name" dirname="input-name.dir">
| Value | Description |
|---|---|
| input-name.dir |
Submits the text direction of the input value. Possible values are ltr (left-to-right) or rtl (right-to-left). |
Here is when dirname support started for each browser:
 Chrome
|
1.0 | Sep 2008 |
 Firefox
|
Not Supported | |
 IE/Edge
|
79.0 | Jan 2020 |
 Opera
|
1.0 | Jan 2006 |
 Safari
|
1.0 | Jan 2003 |
