JS & DOM Reference
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Form enctype Property
Form Object
Definition and Usage
The enctype property sets or returns the value of the enctype attribute in a form.
The enctype attribute specifies how form-data should be encoded before sending it to the server.
The form-data is encoded to "application/x-www-form-urlencoded" by default. This means that all characters are encoded before they are sent to the server (spaces are converted to "+" symbols, and special characters are converted to ASCII HEX values).
Syntax
The enctype property can have one of the following values:
| Value | Description |
|---|---|
| application/x-www-form-urlencoded | All characters are encoded before sent (this is default) |
| multipart/form-data | No characters are encoded. This value is required when you are using forms that have a file upload control |
| text/plain | Spaces are converted to "+" symbols, but no special characters are encoded |
Browser Support
The enctype property is supported in all major browsers.
Note: Internet Explorer and Safari returns "application/x-www-form-urlencoded" even if no enctype attribute is defined (this is the default value), while the other browsers return nothing.
Example
Example
Return how form-data should be encoded before sending it to the server:
<body>
</form>
<form id="frm1" enctype="text/plain">
First name: <input type="text" name="fname" value="Donald" /><br />
Last name: <input type="text" name="lname" value="Duck" /><br />
</form>
<script type="text/javascript">
document.write(document.getElementById("frm1").enctype);
</script>
</body>
</html>
The output of the script above will be:
Try it yourself »
Form Object
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