for multi-selection criteria filtering, is it better to do the front end or the back end?
such as the following
< div class= "content" >
<ul class="navv">
<div class="trade">
<li class="title" data-choice="0"></li>
<li data-choice="1"></li>
<li data-choice="2"></li>
<li data-choice="3"></li>
<li data-choice="4"></li>
</div>
<div class="services">
<li class="title" data-choice="0"></li>
<li data-choice="5">VI</li>
<li data-choice="6">LOGO</li>
<li data-choice="7">PC</li>
<li data-choice="8">APP</li>
<li data-choice="9">OTHER</li>
</div>
</ul>
<div class="caselist">
<div class="case" data-result="1">
<img src="images/cases/case1.png" alt="sample" />
</div>
<div class="case" data-result="2, 1">
<img src="images/cases/case2.png" alt="sample" />
</div>
<div class="case" data-result="1, 3">
<img src="images/cases/case3.png" alt="sample" />
</div>
<div class="case" data-result="4">
<img src="images/cases/case4.png" alt="sample" />
</div>
<div class="case" data-result="5, 6">
<img src="images/cases/case1.png" alt="sample" />
</div>
<div class="case" data-result="6, 9">
<img src="images/cases/case2.png" alt="sample" />
</div>
<div class="case" data-result="7, 3">
<img src="images/cases/case3.png" alt="sample" />
</div>
<div class="case" data-result="9">
<img src="images/cases/case4.png" alt="sample" />
</div>
</div>
</div>