javascript - 在下拉框中搜索选项

Question

我想查找下拉列表中是否有选项并使用其值。这不是选择时的情况。我纯粹想扫描Procedures列表并从中获取值。

<select class="FormDropDown " id="procedure-category-fld" name="procedure-category-fld">
    <option value=""></option>
    <option value="4">Cause</option>
    <option value="5">Disorder</option>
    <option value="6">Procedure</option>
</select>

Answer 1

您可以使用.filter() :

var value = $('#procedure-category-fld option').filter(function (idx, ele) {
    return ele.textContent == "Procedure";
}).val();

console.log(value);

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>


<select class="FormDropDown " id="procedure-category-fld" name="procedure-category-fld">
    <option value=""></option>
    <option value="4">Cause</option>
    <option value="5">Disorder</option>
    <option value="6">Procedure</option>
</select>