我有一个DIV列表,如下所示:
<div id="list">
<div class="cat1-4.2"><div>4</div></div>
<div class="cat3-3.3"><div>3</div></div>
<div class="cat2-5.1"><div>5</div></div>
<div class="cat3-1.5"><div>1</div></div>
<div class="cat3-2.4"><div>2</div></div>
</div>
我希望使用jQuery
对它们进行排序服务器端,我可以定义所需的订单,并在类名中包含此订单:
catX-的 4.2
我希望能够调用第一个订单(在我的例子中,这个DIV将在第4个位置),或者第二个订单(它将在第2个位置):这解释了“4.2”
所以如果我打电话给OrderDIV(1)
,我会有这个:
1
2
3
4
5
如果我打电话给OrderDIV(2)
,我会有:
5
4
3
2
1
(我需要添加更多订单,例如:catX-4.2.5.6.2)
非常感谢你的帮助!
答案 0 :(得分:5)
jQuery抽象Array.prototype.sort()
方法,因此您可以在包装集上使用它:
var OrderDIV = function(asc) {
$('div#list').children().detach().sort(function(a,b) {
return asc ? (+a.textContent) - (+b.textContent) : (+b.textContent) - (+a.textContent);
}).appendTo(document.body);
}
OrderDIV(0);
演示:http://jsfiddle.et/Ls2kd/9/
为简单起见,我按其内容订购了<div>
个节点。如果您需要使用ID
,它应该不是问题。只需访问a.id
并删除比较所需的部分(例如regex)。
另外需要提及的是,InternetExplorer不知道.textContent
,因此它应该是a.textContent || a.text
。
答案 1 :(得分:5)
你在中途改变了要求......就像真正的客户一样。更新版本附带一些注释。只是为了确认,前面有两个“可配置”变量。
classPrefix:用于确定排序顺序的类的“前缀”(在这种情况下为“cat”) listElementSelector:用于获取要排序的列表的jQuery选择器。
function OrderDIV(position)
{
var classPrefix = 'cat';
var listElementSelector = '#list';
// -- Decrement the position to make it 0 based
position--;
// -- Parses the "position" section from the given classes, and
// then the position at the specific index requested.
var parsePosition = function(classes, pos) {
// -- Split the "classes" into an array.
var classList = classes.split(' ');
// -- Determine which of the "classes" starts with the prefix we want.
for( var i in classList )
{
if( classList[i].substr(0, classPrefix.length) == classPrefix )
{
// -- Strip out the positions section, and split it.
var positions = classList[i].split('-')[1].split('.');
// -- return the one position we want
return positions[pos];
}
}
// -- In the event that we don't find the class we're looking for ...
return -1;
}
// -- Compares div A to div B, and returns an indicator of the order
var funcSort = function(a, b) {
// -- Use "parsePosition" to determine the sortable criteria from the classes.
var compA = parsePosition($(a).attr('class'), position);
var compB = parsePosition($(b).attr('class'), position);
return (compA < compB) ? -1 : (compA > compB) ? 1 : 0;
};
// -- Select the list element.
var list = $(listElementSelector);
// -- Select the list items, and return them as an array.
var listitems = list.children('div').get();
// -- Sort the array using the "funcSort".
listitems.sort(funcSort);
// -- Go through each of the array entries, and "append" them to the list container
// (this moves them to the 'back' of the list)
$.each(listitems, function(idx, itm) { list.append(itm); });
}
答案 2 :(得分:1)
jQuery.fn.sortElements = (function(){
var sort = [].sort;
return function(comparator, getSortable) {
getSortable = getSortable || function(){return this;};
var placements = this.map(function(){
var sortElement = getSortable.call(this),
parentNode = sortElement.parentNode,
// Since the element itself will change position, we have
// to have some way of storing its original position in
// the DOM. The easiest way is to have a 'flag' node:
nextSibling = parentNode.insertBefore(
document.createTextNode(''),
sortElement.nextSibling
);
return function() {
if (parentNode === this) {
throw new Error(
"You can't sort elements if any one is a descendant of another."
);
}
// Insert before flag:
parentNode.insertBefore(this, nextSibling);
// Remove flag:
parentNode.removeChild(nextSibling);
};
});
return sort.call(this, comparator).each(function(i){
placements[i].call(getSortable.call(this));
});
};
})();
根据您的需要使用此排序条件:
function sortCriteria(k) {
var regex = /\b\d+/g;
return function(a, b){
return parseInt(a.id.match(regex)[k]) > parseInt(b.id.match(regex)[k]) ? 1 : -1;
}
}
$("#list >").sortElements(sortCriteria(0));