Modify Required Field Text For Free

We can also use JavaScript to customize the error message, in addition to using CSS, and control how it is displayed. To customize the error message using JavaScript, we can use the "setCustomValidity" method, which allows us to specify a custom error message for the input field.

To customize the error message using JavaScript, we can use the "setCustomValidity" method, which allows us to specify a custom error message for the input field.

By setting and unsetting the setCustomValidity in the right time, the validation message will work flawlessly. I used onchange instead of oninput which is more general and occurs when the value is changed in any condition even through JavaScript.

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.

Assign <input_name>. ValidationMessage to the Value of an Expression Widget to display the validation message of the <input_name> Input in a custom location.

To make a select mandatory with HTML, use the required attribute. With the required attribute, the user must select a value before submitting the form; if the user refuses to select a value, then the form won't submit.

How to customize built-in form validation error messages Grab the input element(s) with a querySelector / querySelectorAll . Add an event listener for the invalid event. When handling the event, under event. target. ... Add an event listener for the change event to reset the custom error when the input value changes.