Question

我有三组复选框，允许我根据数据属性过滤多个div。这很好但不是我需要的。

如果你访问下面的jsfiddle，你会看到一个有效的测试。

我需要做的是：

如果在同一类别中选择了多个选项，例如'小'和'中'，它应该增加结果，即显示所有'小'和'中'结果，（这就是它目前所做的）。
在不同类别中选择多个选项时，例如'中等'和'北美'它应该减少结果，即在'北美'显示所有'中等'花朵

我如何修复/修改我的代码以使其正常工作？（我希望这是有道理的。）

以下是我正在使用的jquery：

            $('.flowers-wrap, .continents-wrap').delegate('input[type=checkbox]', 'change', function() {
                var $lis = $('.flowers > div'),
                    $checked = $('input:checked');  
                if ($checked.length) {                          
                    var selector = '';
                    $($checked).each(function(index, element){
                        if(selector === '') {
                            selector += "[data-category~='" + element.id + "']";                  
                        } else {
                            selector += ",[data-category~='" + element.id + "']";
                        }
                    });                        
                    $lis.hide(); 
                    console.log(selector);
                    $('.flowers > div').filter(selector).show();               
                } else {
                    $lis.show();
                }
            });

请参阅我设置的jsfiddle，以证明我遇到的问题 - http://jsfiddle.net/n3EmN/

Answer 1

非常感谢Pho3nixHun的帮助：）

这是我自己的答案：（jsfiddle here）。

$(document).ready(function() {

    var byProperty = [], byColor = [], byLocation = [];

    $("input[name=fl-colour]").on( "change", function() {
        if (this.checked) byProperty.push("[data-category~='" + $(this).attr("value") + "']");
        else removeA(byProperty, "[data-category~='" + $(this).attr("value") + "']");
    });

    $("input[name=fl-size]").on( "change", function() {
        if (this.checked) byColor.push("[data-category~='" + $(this).attr("value") + "']");
        else removeA(byColor, "[data-category~='" + $(this).attr("value") + "']");
    });

    $("input[name=fl-cont]").on( "change", function() {
        if (this.checked) byLocation.push("[data-category~='" + $(this).attr("value") + "']");
        else removeA(byLocation, "[data-category~='" + $(this).attr("value") + "']");
    });

    $("input").on( "change", function() {
        var str = "Include items \n";
        var selector = '', cselector = '', nselector = '';

        var $lis = $('.flowers > div'),
            $checked = $('input:checked');  

        if ($checked.length) {  

            if (byProperty.length) {        
                if (str == "Include items \n") {
                    str += "    " + "with (" +  byProperty.join(',') + ")\n";               
                    $($('input[name=fl-colour]:checked')).each(function(index, byProperty){
                        if(selector === '') {
                            selector += "[data-category~='" + byProperty.id + "']";                     
                        } else {
                            selector += ",[data-category~='" + byProperty.id + "']";    
                        }                
                    });                 
                } else {
                    str += "    AND " + "with (" +  byProperty.join(' OR ') + ")\n";                
                    $($('input[name=fl-size]:checked')).each(function(index, byProperty){
                        selector += "[data-category~='" + byProperty.id + "']";
                    });
                }                           
            }

            if (byColor.length) {                       
                if (str == "Include items \n") {
                    str += "    " + "with (" +  byColor.join(' OR ') + ")\n";                   
                    $($('input[name=fl-size]:checked')).each(function(index, byColor){
                        if(selector === '') {
                            selector += "[data-category~='" + byColor.id + "']";                    
                        } else {
                            selector += ",[data-category~='" + byColor.id + "']";   
                        }                
                    });                 
                } else {
                    str += "    AND " + "with (" +  byColor.join(' OR ') + ")\n";               
                    $($('input[name=fl-size]:checked')).each(function(index, byColor){
                        if(cselector === '') {
                            cselector += "[data-category~='" + byColor.id + "']";                   
                        } else {
                            cselector += ",[data-category~='" + byColor.id + "']";  
                        }                   
                    });
                }           
            }

            if (byLocation.length) {            
                if (str == "Include items \n") {
                    str += "    " + "with (" +  byLocation.join(' OR ') + ")\n";                
                    $($('input[name=fl-cont]:checked')).each(function(index, byLocation){
                        if(selector === '') {
                            selector += "[data-category~='" + byLocation.id + "']";                     
                        } else {
                            selector += ",[data-category~='" + byLocation.id + "']";    
                        }                
                    });             
                } else {
                    str += "    AND " + "with (" +  byLocation.join(' OR ') + ")\n";                
                    $($('input[name=fl-cont]:checked')).each(function(index, byLocation){
                        if(nselector === '') {
                            nselector += "[data-category~='" + byLocation.id + "']";                    
                        } else {
                            nselector += ",[data-category~='" + byLocation.id + "']";   
                        }   
                    });
                }            
            }

            $lis.hide(); 
            console.log(selector);
            console.log(cselector);
            console.log(nselector);

            if (cselector === '' && nselector === '') {         
                $('.flowers > div').filter(selector).show();
            } else if (cselector === '') {
                $('.flowers > div').filter(selector).filter(nselector).show();
            } else if (nselector === '') {
                $('.flowers > div').filter(selector).filter(cselector).show();
            } else {
                $('.flowers > div').filter(selector).filter(cselector).filter(nselector).show();
            }

        } else {
            $lis.show();
        }   

        $("#result").html(str); 

    });

    function removeA(arr) {
        var what, a = arguments, L = a.length, ax;
        while (L > 1 && arr.length) {
            what = a[--L];
            while ((ax= arr.indexOf(what)) !== -1) {
                arr.splice(ax, 1);
            }
        }
        return arr;
    }

});

Answer 2

您应该在过滤元素之前隐藏元素并在之后显示它们，在.hide()之前添加.filter(selector)。像这样：

$('.flowers > div').hide().filter(selector).show();

这应隐藏所有元素，然后显示所选元素。

<强> DEMO

Jquery多个复选框过滤

2 个答案: