<script

  src="https://code.jquery.com/jquery-3.7.1.min.js"

  integrity="sha256-/JqT3SQfawRcv/BIHPThkBvs0OEvtFFmqPF/lYI/Cxo="

  crossorigin="anonymous"></script>

​

<select data-mdb-select-init multiple id="mySelect">

  <option selected value="1">One</option>

  <option selected value="2">Two</option>

  <option selected value="3">Three</option>

  <option value="4">Four</option>

  <option value="5">Five</option>

  <option value="6">Six</option>

  <option value="7">Seven</option>

  <option value="8">Eight</option>

</select>

<label class="form-label select-label">Example label</label>

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<button id="getValue" class="btn btn-primary">

  Get value

</button>

​

​