我找到了一个需要jquery过滤的脚本。 在该脚本中，某些项目的值为绿色，一些为绿色和黄色。如果您选择绿色和黄色的颜色，您将获得所有绿色和黄色项目，以及绿色和黄色项目。 我需要改变它，这样如果我选择绿色和黄色，我只会得到绿色和黄色的项目。
我不是很擅长js，所以我非常感谢你的帮助。
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;
}
链接到jsfiddle：http://jsfiddle.net/3gf1j1ec/
答案 0 :(得分：0)
这是获取数组交集的方法。它使用Array.prototype.every方法生成匹配。
var byProperty = [], byColor = [], byLocation = [];
var intersectionOfColours = function(){
// get an array of the selected colours
var selectedColours = $('form input[name="fl-colour"]:checked').map(function(){
return this.value;
}).get();
// iterate through the flowers and show/hide
$('.flowers .flower').each(function(){
var flowerColours = $(this).data("category").split(' ');
// if all selected colours can be found in flowerColours, we have a match
var match = selectedColours.every(function(thisColour){
return (flowerColours.indexOf(thisColour) !== -1);
});
if (match) {
$(this).show();
} else {
$(this).hide();
}
});
// debug
$('#result').html( JSON.stringify(selectedColours) );
};
$("input[name=fl-colour]").on( "change", intersectionOfColours);label {
float: left;
clear: left;
}
.flowers-wrap {
width: 100%;
}
.flowers-wrap form {
width: 49%;
float: left;
}
.flower {
background-color: #DEE;
padding: .5em;
margin: 3px;
border: 1px solid gray;
}
.flowers {
width: 49%;
float: left;
}<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<pre id=result></pre>
<div class="flowers-wrap">
<h3>Available Flowers</h3>
<p><strong>Filter flowers by colour:</strong></p>
<form>
<label><input type="checkbox" name="fl-colour" value="red" id="red" />Red</label>
<label><input type="checkbox" name="fl-colour" value="yellow" id="yellow" />Yellow</label>
<label><input type="checkbox" name="fl-colour" value="pink" id="pink" />Pink</label>
<label><input type="checkbox" name="fl-colour" value="purple" id="purple" />Purple</label>
<label><input type="checkbox" name="fl-colour" value="green" id="green" />Green</label>
<label><input type="checkbox" name="fl-colour" value="other" id="other" />Other</label>
</form>
<div class="flowers">
<div class="flower" data-id="aloe" data-category="green small medium africa">Aloe</div>
<div class="flower" data-id="lavendar" data-category="purple green medium africa europe">Lavender</div>
<div class="flower" data-id="stinging-nettle" data-category="green large africa europe asia">Stinging Nettle</div>
<div class="flower" data-id="gorse" data-category="green yellow large europe">Gorse</div>
<div class="flower" data-id="hemp" data-category="green large asia">Hemp</div>
<div class="flower" data-id="titan-arum" data-category="purple other giant asia">Titan Arum</div>
<div class="flower" data-id="golden-wattle" data-category="green yellow large australasia">Golden Wattle</div>
<div class="flower" data-id="purple-prairie-clover" data-category="purple green other medium north-america">Purple Prairie Clover</div>
<div class="flower" data-id="camellia" data-category="pink other large north-america">Camellia</div>
<div class="flower" data-id="scarlet-carnation" data-category="red medium north-america">Scarlet Carnation</div>
<div class="flower" data-id="indian-paintbrush" data-category="red medium north-america">Indian Paintbrush</div>
<div class="flower" data-id="moss-verbena" data-category="purple other small south-america">Moss Verbena</div>
<div class="flower" data-id="climbing-dayflower" data-category="blue tiny south-america">Climbing Dayflower</div>
<div class="flower" data-id="antarctic-pearlwort" data-category="green yellow large antarctica">Antarctic Pearlwort</div>
</div>
</div>