Implementing Bootstrap 4 Beta's server-side validation post error resolution

I'm currently working with Bootstrap 4.0.0.beta and am facing an issue with server-side validation. When adding the .is-invalid class to inputs that were invalid upon submission, even after the user corrects the error, the class remains, potentially confusing the user. They might believe the input is still invalid when it's not.

What would be the most graceful solution to this problem? I'm considering a blend of client-side validation or setting up a listener for changes on inputs with the .is-invalid class using JavaScript. This way, whenever the input is filled, the class can be removed.

csstwitter-bootstrapvalidationtwitter-bootstrap-4

Answer №1

To make this happen, the use of JavaScript is necessary.

If you want to trigger an action on a keyup event, you can implement the following methods:

Using inline JavaScript

<input type="text" class="is-invalid" onkeyup="this.classList.remove('is-invalid')">

Using jQuery

<input type="text" class="is-invalid">

-

$('input').keyup(function () {
    $(this).removeClass('is-invalid');
});

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