layui如何获取复选框的值

摘要： //HTML代码<form class="layui-form">    <div&...

//HTML代码
<form class="layui-form">
    <div class="layui-form-item">
        <label class="layui-form-label">复选框</label>
        <div class="layui-input-block">
            <input type="checkbox" name="like" value="1" title="写作">
            <input type="checkbox" name="like" value="2" title="阅读" >
            <input type="checkbox" name="like" value="3" title="发呆">
        </div>
    </div>
    <div class="layui-form-item">
        <div class="layui-input-block">
            <button class="layui-btn" lay-submit lay-filter="formDemo">立即提交</button>
            <button type="reset" class="layui-btn layui-btn-primary">重置</button>
        </div>
    </div>
</form>

//JS代码
<script>
    layui.use('form', function(){
        var form = layui.form;
        form.on('submit(formDemo)', function(data){
            //获取checkbox[name='like']的值
            var arr = new Array();
            $("input:checkbox[name='like']:checked").each(function(i){
                arr[i] = $(this).val();
            });
            data.field.like = arr.join(",");//将数组合并成字符串
            $.post("admin.php", {data:data.field}, function (res) {
                if (res.code == 1) {
                    layer.msg(res.msg, {time: 1800, icon: 1}, function () {
                        location.href = res.url;
                    });
                } else {
                    layer.msg(res.msg, {time: 1800, icon: 2});
                }
            }, 'json');
            return false;
        });
    });
</script>