我想在JS中接收来自html的选定值。在HTML中,我使用selected2库的多选框。我能够通过<select class="form-control" id="companies" >
之类的常规单选来做到这一点。
有人可以告诉我如何使用select2进行多次选择吗?
html
<link href="https://cdn.jsdelivr.net/npm/[email protected]/dist/css/select2.min.css" rel="stylesheet" />
<script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/js/select2.min.js"></script>
<form>
<div class="form-group">
<label>Airline companies</label>
<p>
<select class="js-example-basic-multiple" id="companies" name="states[]" multiple="multiple" style="width: 120%">
<!-- select class="form-control" id="companies" --> // if I don't use multiple select with select2, it worked
<option selected>Select companies</option>
<option value="one">First</option>
<option value="two">Second</option>
...
</select>
</p>
</div>
<button class="btn btn-primary" type='button' id="button">Refresh</button>
</form>
JS
company = getSelectedOption('companies')
function getSelectedOption(id){
/* function to get the selected value from the dropdowns */
let select = document.getElementById(id);
let value = select.options[select.selectedIndex].value;
return value
}
您可以通过使用jQuery方法.val()
获得选定的值: