HTML DOM Form enctype attribute
Form Object Definition and Usage
enctype property sets or returns the MIME type used to encode the content of the form.
If the form does not enctype attribute, then when the text submitted default is "application / x-www-form-urlencoded".
When the input type is "file", the value is "multipart / form-data".
grammar
formObject.enctype=value
enctype attribute can have the following values:
| 值 | 描述 |
|---|---|
| application/x-www-form-urlencoded | 数据在发送前所有字符都会被编码 (默认) |
| multipart/form-data | 没有字符被编码。这个值用于控制表单文件的上传 |
| text/plain | 空格转换为"+"符号，但没有特殊字符 编码 |
Browser Support
All major browsers support enctype attribute
Note: Internet Explorer and Safari browser returns "application / x-www-form -urlencoded", if no enctype attribute is defined (the default), other browsers no return value.
Examples
Examples
Return the form to launch the encoding type data server:
<html>
<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>
document.write(document.getElementById("frm1").enctype);
</script>
</body>
</html>
<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>
document.write(document.getElementById("frm1").enctype);
</script>
</body>
</html>
Examples of the above output:
text/plain
try it"
Form Object