css - Bootstrap 4 beta server side validation after fixing error -


i'm using bootstrap 4.0.0.beta, , can add server-side validation adding .is-invalid classes inputs invalid upon submission. however, when user fixes error in input (for example filling input required , left unfilled), input still has .is-invalid class, think can confusing user, because can think input still invalid (even if not).

what elegant way address be? i'm thinking either combine client-side validation or listen changes on inputs .is-invalid class via javascript, , whenever filled, remove class.

this should achieved using javascript.

if keyup event suffice, can :

inline javascript

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

jquery

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

-

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

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