How Can You Make `` Fields Required in HTML?

Using the Required Attribute with Fields in HTML

While the

element does not natively support the required attribute, there is a clever workaround that enables its use. This approach involves employing an empty value for the first option in the field.

Prerequisites:

• Correct HTML5 DOCTYPE
• Named input field

Code Example:

<code class="html"><select name="somename" required>
<option value="">Please select</option>
<option value="one">One</option>
</select></code>

Explanation:

Per the HTML5 specification, if a

element meets the following criteria:

• Required attribute is specified
• Multiple attribute is not specified
• Display size is 1 (SIZE=2 or more is not present)
• First option has an empty value (e.g., value="")
• First option is a direct child of the element (not within an )

  Then, the first option becomes the placeholder label option. By leaving the initial value blank, the

  element is forced to have a default value to submit, thus enforcing the required attribute.

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