JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-select/1.11.2/js/bootstrap-select.min.js"></script>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-select/1.11.2/css/bootstrap-select.min.css">
<div class="btn-group bootstrap-select show-tick span12 reg-form-control validate[required]">
<button id="control-qid13228" type="button" class="btn dropdown-toggle btn-bootstrap" data-toggle="dropdown" data-id="qid13228">
    <div class="filter-option pull-left">3 of 4 selected</div>&nbsp;<div class="caret"></div>
</button>
<div class="dropdown-menu open" style="max-height: 249px; overflow: hidden; min-height: 92px;">
    <ul class="dropdown-menu inner" role="menu" style="max-height: 237px; overflow-y: auto; min-height: 80px;">
        <li rel="0" class="selected"><a tabindex="0" onclick="update_reg_multi_click('qid13228','basketball');" style=""><span class="text">basketball</span><i class="glyphicon glyphicon-ok icon-ok check-mark"></i></a></li>
        <li rel="1"><a tabindex="0" onclick="update_reg_multi_click('qid13228','baseball');" style=""><span class="text">baseball</span><i class="glyphicon glyphicon-ok icon-ok check-mark"></i></a></li>
        <li rel="2" class="selected"><a tabindex="0" onclick="update_reg_multi_click('qid13228','football');" style=""><span class="text">football</span><i class="glyphicon glyphicon-ok icon-ok check-mark"></i></a></li>
        <li rel="3" class="selected"><a tabindex="0" onclick="update_reg_multi_click('qid13228','hockey');" style=""><span class="text">hockey</span><i class="glyphicon glyphicon-ok icon-ok check-mark"></i></a></li>
    </ul>
</div>

<select name="qid13228" id="qid13228" class="selectpicker span12 reg-form-control validate[required]" data-style="btn-bootstrap" multiple=""...

JavaScript

setTimeout(function(){

  $("#control-qid13228").click();

},1);