【发布时间】:2016-01-19 14:19:54
【问题描述】:
单击列表组时,我需要选择下一个(以下)列表组并将其更改为 data-state=enabled .list-group 并从每个列表组中删除 disabled 类-项目
我的代码越来越复杂,我想知道 1)如何让计数器工作,这样它就不会因增加太多而引发错误 2)如何在不使用jquery的情况下简化它 3) 如何使用 jquery 简化此操作
<section>
<div class="list-group">
<h4>1. Select Doctor</h4>
<hr>
<a href="#" class="list-group-item active">Dr. Justice Freedom</a>
<a href="#" class="list-group-item">Dr. Martin Fabio</a>
<a href="#" class="list-group-item">Dr. Jenny Walter</a>
<a href="#" class="list-group-item">Dr. Loius Von Winkle</a>
<a href="#" class="list-group-item">Dr. Mary McDoctors</a>
<a href="#" class="list-group-item">Dr. Freethinker Liver</a>
<a href="#" class="list-group-item">Dr. Cognitive Thinker</a>
</div>
</section>
<section>
<div class="list-group" data-state="disabled">
<h4>2. Select Department</h4>
<hr>
<a href="#" class="list-group-item disabled">Cras justo odio</a>
<a href="#" class="list-group-item disabled active">Dapibus ac facilisis in</a>
<a href="#" class="list-group-item disabled">Morbi leo risus</a>
<a href="#" class="list-group-item disabled">Porta ac consectetur ac</a>
<a href="#" class="list-group-item disabled">Vestibulum at eros</a>
</div>
</section>
<section>
<div class="list-group" data-state="disabled">
<h4>3. Select Area</h4>
<hr>
<a href="#" class="list-group-item disabled active">Cras justo odio</a>
<a href="#" class="list-group-item disabled">Dapibus ac facilisis in</a>
<a href="#" class="list-group-item disabled">Morbi leo risus</a>
<a href="#" class="list-group-item disabled">Porta ac consectetur ac</a>
<a href="#" class="list-group-item disabled">Vestibulum at eros</a>
</div>
</section>
JS
var listGroup = document.querySelectorAll('#selectPatientCategories .list-group');
//console.log(listGroup);
var cats = document.querySelectorAll('a.list-group-item');
//console.log(cats);
var counter = 1;
// For each category list item
var catIndex = 0, catLength = cats.length;
for (; catIndex < catLength; catIndex++) {
var thiscat = cats[catIndex];
//console.log(listGroupIndex);
// Click function on list item
thiscat.addEventListener('click', function () {
//console.log(thisListGroup);
//Get the parent .list-group
thisListGroup = this.parentElement;
thisListGroupCats = thisListGroup.querySelectorAll('a.list-group-item');
//console.log(thisListGroupCats);
// For each category .list-group-item within this listGroup
var listGroupIndex = 0, listGroupCatsLength = thisListGroupCats.length;
for (; listGroupIndex < listGroupCatsLength; listGroupIndex++) {
// Focus on just this .list-group being iterated
rmThisCat = thisListGroupCats[listGroupIndex];
rmThisCat.classList.remove('active');
}
// Activate the clicked .list-group-item
this.classList.add('active');
// Activate the next list group
nextListGroup = listGroup[counter];
nextListGroup.setAttribute('data-state', 'enabled');
nextListGroupCats = nextListGroup.querySelectorAll('a.list-group-item');
nextCatIndex = 0;
console.log(nextListGroupCats);
for (; nextCatIndex < nextListGroupCats.length; nextCatIndex++) {
var nextCat = nextListGroupCats[nextCatIndex];
nextCat.classList.remove('disabled');
}
// increment the counter
counter++;
}); // End click function
}
【问题讨论】:
-
您的要求 2)如何在不使用 jquery 的情况下简化这个 3)如何使用 jquery 来简化这个矛盾。你愿意改编一个 jquery 版本吗?
-
当然,我问这两个问题的原因是如果有人用javascript回答,我可以找出一个jquery版本,反之亦然,这样我可以学得更好。 Jquery 版本对我来说很好。
标签: javascript jquery html loops iteration