Token Separators
Use tokenSeparators option via JavaScript or data-token-separators via attribute to set allowed keys that should be used when tokenizing.
        Possible options to search for are: Banana, Apple, Orange, Lemon, Pepper, Mushrooms, Cabbages, Celery, Brocoli, Garlic
<div class="container">
    <select multiple="multiple" data-toggle="better-nice-select" data-tags="true" data-token-separators='[","," ","Enter"]'>
        <option value="Banana">Banana</option>
        <option value="Apple">Apple</option>
        <option value="Orange">Orange</option>
        <option value="Lemon" selected="selected">Lemon</option>
        <option value="Pepper">Pepper</option>
        <option value="Mushrooms">Mushrooms</option>
        <option value="Cabbages">Cabbages</option>
        <option value="Celery">Celery</option>
        <option value="Garlic">Garlic</option>
        <option value="Brocoli">Brocoli</option>
    </select>
</div>let elements = document.querySelectorAll('[data-toggle="better-nice-select"]');
elements.forEach(element => new betterNiceSelect.BetterNiceSelect(element));