layui的select获取自定义属性和默认选中

1.获取自定义属性

<span class="color-green">加班选择</span>
<select name="" class="layui-input" id="my-select" lay-filter="test">
    <option data-id="996" value="1">996</option>
    <option data-id="007" value="2">007</option>
</select>

layui.use(['form'], function () {
     let form = layui.form;
     form.on('select(test)', function(data){
         let value = $(data.elem).find("option:selected").attr("data-id");
         console.log(value);
     })
 });

2.默认选中

let value = 1;
$('#my-select').find("option[value=" + value + "]").attr("selected",true);

提醒：
layui的select操作记得加上 form.render(‘select’);