Layui method to modify the value of select

How to modify the select value in layui: First add the code "" in html5 to obtain Initial value; then set the values ​​of select and radio button in js.

The operating environment of this tutorial: Windows 7 system, layui version 2.4. This method is suitable for all brands of computers.

Dynamicly set the select value of layui

Recommended: "javascript basic tutorial" "layUI tutorial"

Add the following code in html5 to obtain the initial value.

<input id="ggg" style="display: none;" value="{$hopedepart}" />
<input id="ddd" style="display: none;" value="{$sex}" />

Then set the values ​​of select and radio button in js.

<script>
    function firstload() {
        var str = "#hopedepart option[value=&#39;" + $("#ggg").val() + "&#39;]";
        var sex = "input:radio[value=&#39;" + $("#ddd").val() + "&#39;]";
     //   document.write(sex);
        $("#hopedepart option[value=&#39;&#39;]").removeAttr("selected"); //2.移除默认选项的选中状态  removeAttr("selected")
        $(str).attr("selected", "selected");
        $(sex).attr(&#39;checked&#39;, &#39;true&#39;);
    }
    firstload();
 
</script>

Give a specific example

html

<script src="https://code.jquery.com/jquery-3.1.1.min.js"></script>
    <!--引入jQuery-->
 
<input type="hidden" id="position_hidden_id" th:value="${staff?.position}">
 
                    <select name=&#39;position&#39; id="position_id" lay-filter=&#39;aihao&#39;>
                        <option value=&#39;&#39;></option>
<option value=&#39;前端开发&#39;>前端开发</option>
<option value=&#39;后端开发&#39;>后端开发</option>
<option value=&#39;产品&#39;>产品</option>
<option value=&#39;测试&#39;>测试</option>
<option value=&#39;UI&#39;>UI</option>
<option value=&#39;人事&#39;>人事</option>
<option value=&#39;财务&#39;>财务</option>
<option value=&#39;市场&#39;>市场</option>
<option value=&#39;总经理&#39;>总经理</option>
</select>
 
<script>
//alert("ggg");
$(document).ready(function(){ 
        var key1=$("#position_hidden_id").val();
        //根据值让option选中 
        $("#position_id option[value=&#39;"+key1+"&#39;]").attr("selected","selected"); 
       
    });
</script>

The above is the detailed content of Layui method to modify the value of select. For more information, please follow other related articles on the PHP Chinese website!