layui 表单监听 radio

1、html

<div class="layui-inline">
    <label class="layui-form-label">过期时间</label>
    <div class="layui-input-block">
        <input type="text" name="date" id="date" lay-verify="date" placeholder="yyyy-MM-dd"
                autocomplete="off" class="layui-input">
    </div>
    <div class="layui-input-block">
        <input type="radio" name="expire_time" lay-filter="expire_time" num="1" value="1个月"
                title="1个月">
        <input type="radio" name="expire_time" lay-filter="expire_time" num="3" value="3个月"
                title="3个月" checked>
        <input type="radio" name="expire_time" lay-filter="expire_time" num="6" value="半年"
                title="半年" checked>
    </div>
</div>

2、js

// 监听单选框：过期时间
form.on('radio(expire_time)', function (data) {
    var now_timer = new Date();
    var num = $(data.elem).attr('num');
    now_timer.setMonth(now_timer.getMonth() + parseInt(num));
    var change_time = '' + now_timer.getFullYear() + '-' + (now_timer.getMonth() + 1) + '-' + now_timer.getDate() + '';
    $('#date').val(change_time);
});

注意：需要指定 lay-filter