Layui 获取表单提交数据

HTML
<div class="layui-card-header layuiadmin-card-header-auto">
            <form class="layui-form">
                <div class="layui-form-item">

                    <div class="layui-inline">
                        <label class="layui-form-label">公司名：</label>
                        <div class="layui-input-inline">
                            <input  name="keyword" id="keyword" class="layui-input">
                        </div>
                    </div>

                    <div class="layui-form-item layui-inline">
                        <button class="layui-btn" lay-submit lay-filter="formDemo">搜索</button>
                    </div>

                </div>
            </form>
        </div>

JS

form.on('submit(formDemo)', function (data) {
     console.log(data.field);
     return false;
});