Dynamically add option to select in layui

This article mainly shares an example of dynamically adding options to layui select. It has a good reference value and I hope it will be helpful to everyone. Let’s follow the editor to take a look, I hope it can help everyone.

html

<form class="layui-form" action="">
 <p class="layui-form-item proSelect">
   <label class="layui-form-label">产品类别</label>
   <p class="layui-input-block editWidth">
    <select name="productList" lay-verify="required" id="zcySelect">
     <option value=""></option>
     <option value="0">轻松融</option>
     <option value="1">容易融</option>
     <option value="2">快乐融</option>
    </select>
   </p>
  </p>
  <a class="layui-btn layui-btn-small" id="" onclick="addProductClassify()">增加产品类别</a>
</form>
<!--弹窗内容-->
<p id="select_prod" class="layui-form" hidden="hidden">
 <p class="layui-input-inline">
  <input type="text" name="text" required lay-verify="required" placeholder="" autocomplete="off" class="layui-input">
 </p>
</p>

js

//重新渲染表单
function renderForm(){
 layui.use('form', function(){
 var form = layui.form();//高版本建议把括号去掉，有的低版本，需要加()
 form.render();
 });
 }
//增加产品类别按钮点击事件
function addProductClassify(){
 layer.open({
  type:1,
  btn:['确定','取消'],
  content:$("#select_prod"),
  area:['270px','160px'],
  //当前层索引参数（index）、当前层的DOM对象（layero）
  yes:function(index,layero){
   //获取input输入的值
   var ivalue=$(layero).find("input").val();
   //获取要添加的option的索引
   var sIndex=$("#zcySelect")[0].options.length-1;
   if(ivalue==null||ivalue==''){
    layer.msg("请输入产品类别")
   }
   else{
    layer.msg("输入的产品类别是："+ivalue);
    //为select添加option
    $("#zcySelect").append("<option value="+sIndex+">"+ivalue+"</option>"); 
    renderForm();//表单重新渲染，要不然添加完显示不出来新的option
    layer.close(index);
   }
   $(layero).find("input").val('');
  }
 })
}

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