JSFiddle - React, Tailwind, and code Playground

HTML

<form id="forma">
    <p><input type="text" name="tekst1" value="Tekst 1" disabled="disabled" /></p>
    <p><input type="text" name="tekst5" value="Tekst 2" disabled="disabled" /></p>
    <p><input type="text" name="tekst3" value="Tekst 3" disabled="disabled" /></p>
    <p><input type="text" name="tekst4" value="Tekst 4" disabled="disabled" /></p>
    <div style="margin-top: 20px;"><input type="submit" value="Submit" /></div>
</form>

JavaScript

$('#forma').submit(function() {
    $('input[type="text"]', $(this)).filter(':disabled').val('').removeAttr('disabled');
    return false;
});