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To remove the required attribute, select the element and call the removeAttribute() method on it, passing it required as a parameter. The removeAttribute method will remove the required attribute from the element. Here is the HTML for the examples.

After inserting a form field, click the Properties button to get its properties dialog, which is different from the one for content controls. Put the field's name in the "Bookmark" box -- that name is what the macro will use to identify the field. In the Exit dropdown, select the name of the macro (MustFillIn).

To remove the required attribute, select the element and call the removeAttribute() method on it, passing it required as a parameter. The removeAttribute method will remove the required attribute from the element. Here is the HTML for the examples. And here is the related JavaScript code.

Basic Validation − First of all, the form must be checked to make sure all the mandatory fields are filled in. It would require just a loop through each field in the form and check for data. Data Format Validation − Secondly, the data that is entered must be checked for correct form and value.

The required attribute is a boolean attribute. When present, it specifies that an input field must be filled out before submitting the form. Note: The required attribute works with the following input types: text, search, url, tel, email, password, date pickers, number, checkbox, radio, and file.

Validating Required Fields with PHP To validate required fields with PHP, we will use the isset function. The isset function checks if a variable is set and is not NULL . If the variable is not set, an error message will be displayed.

Use ::after to create a pseudo-element containing an asterisk * to mark one or more input fields as required with an asterisk in HTML and CSS. ::after can be used to add an asterisk * after the label text of each input to indicate that the field is required.