我有三个无序列表,里面有列表项,每个列表的分数从1到10。我有分页,所以页面中有三个相同的ul项。
我需要一个按钮,单击该按钮时,将列表项按降序排列(因此从10到1)。
的HTML是:
<ul class="pagination">
<li class="first active">1</li>
<li class="second">2</li>
<li class="third">3</li>
</ul>
<ul class="sort">
<li class="sortEm">sort by score</li>
</ul>
<div class="block" style="display:block">
<ul class="reviews_list">
<li class="one_review">score:
<div class="score">10</div>
</li>
<li class="one_review">score:
<div class="score">7</div>
</li>
<li class="one_review">score:
<div class="score">9</div>
</li>
<li class="one_review">score:
<div class="score">2</div>
</li>
<li class="one_review">score:
<div class="score">2</div>
</li>
</ul>
</div>
<div class="block">
<ul class="reviews_list">
<li class="one_review">score:
<div class="score">1</div>
</li>
<li class="one_review">score:
<div class="score">2</div>
</li>
<li class="one_review">score:
<div class="score">3</div>
</li>
<li class="one_review">score:
<div class="score">7</div>
</li>
<li class="one_review">score:
<div class="score">9</div>
</li>
</ul>
</div>
<div class="block">
<ul class="reviews_list">
<li class="one_review">score:
<div class="score">10</div>
</li>
<li class="one_review">score:
<div class="score">2</div>
</li>
<li class="one_review">score:
<div class="score">2</div>
</li>
<li class="one_review">score:
<div class="score">1</div>
</li>
<li class="one_review">score:
<div class="score">5</div>
</li>
</ul>
</div>
而js是
$(".pagination li").click(function () {
$(this).toggleClass("active").siblings().removeClass("active");
$(".block").hide();
$(".block").eq($(this).index()).show()
});
$(".sortEm").click(function () {
function sortEm(a, b) {
return parseInt($(".score", a).text()) < parseInt($(".score", b).text()) ? 1 : -1;
}
$("li.one_review").sort(sortEm).prependTo($(".reviews_list"));
});
问题是使用此功能时,当我单击按钮时,我失去了分页功能。这是一个小提琴:http : //jsfiddle.net/3ed03xy9/2/
如何编写JavaScript,以便将li项目从一个块移到另一个块,保持分页并将它们从10显示为1?我不是js专家,所以我不知道该怎么做。我到目前为止已经走了..有人可以帮忙吗?多谢 :)
您可以将插入排序列表的代码更改为
//store sorted list in variable so we can iterate over it and divide it
//this list combine all '.one_review' (li)s in the 3 reviews_list (ul)s
var sortedList = $("li.one_review").sort(sortEm);
// i iteration variable to let us know where we are in sortedList iteration
// we will increase it every iteration throgh sortedList elements
var i = 0;
// j iteration variable to point to Nth of ul.reviews_list (we have 3 ul.reviews_list)
// we will increase it when i=0, i=5 and i=10
var j = -1;
// the number of items per page (here the sortedList length is 15 and we wanna dived it to 3 pages )
// 15/3 = 5 then round it
var itemsPerPage = Math.round(sortedList.length / 3);
// iterate over each item in sortedList array
// https://api.jquery.com/each/
sortedList.each(function(){
//if reminder of Nth of element / itemsPerPage equal zero that mean
//we need to move to next ul.reviews_list empty it.
if( i % itemsPerPage == 0 ){
//move to next ul.reviews_list
// we will enter here 3 times:
// in first iteration when i=0 then 0%5 = 0 then j will be 0
// in 6th iteration when i=5 then 5%5 = 0 then j will be 1
// in 11th iteration when i=10 then 10%5 = 0 then j will be 2
++j;
// empty current ul.reviews_list
// see : https://api.jquery.com/eq-selector/
// see : http://api.jquery.com/html/
$('.reviews_list:eq('+j+')').html("");
}
// append current li.one_review(this) to current ul.reviews_list (:eq(j))
$('.reviews_list:eq('+j+')').append(this);
++i;
});
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