本文实例为大家分享了原生JS实现多条件筛选的具体代码，供大家参考，具体内容如下
我在学JS初始看到的教程基本都是JS二级联动查询、三级联动查询；如下图：
但有时并不需要级联查询，如购买商品时：
今天我以慕课网前端样式作为参考做了下面的Demo，基于原生JS
<div id="direction"> <strong>方向：</strong> <span class="active">全部</span> <span>前端</span> <span>后台</span> <span>数据库</span> <span>UI设计</span> </div> <div id="category"> <strong>分类：</strong> <span class="active">全部</span> <span>HTML/CSS</span> <span>JavaScript</span> <span>jQuery</span> <span>Python</span> <span>Java</span> <span>AngularJS</span> </div> <div id="type"> <strong>类型：</strong> <span class="active">全部</span> <span>基础</span> <span>案例</span> <span>框架</span> <span>工具</span> </div> <strong>返回值：</strong> <p id="Res"></p>
<style>
span{display: inline-block;
cursor: pointer; padding: 8px; border: 1px solid #999;}
span.active{
background-color: #c14d00;
}
</style>
<script>
var dSpan = document.getElementById('direction').getElementsByTagName('span');
var cSpan = document.getElementById('category').getElementsByTagName('span');
var tSpan = document.getElementById('type').getElementsByTagName('span');
var aSpan = document.getElementsByTagName('span');
var oDirection = document.getElementById('direction');
var oCategory = document.getElementById('category');
var oType = document.getElementById('type');
var oRes = document.getElementById('Res');
dSpan[0].className = 'active';
cSpan[0].className = 'active';
tSpan[0].className = 'active';
for(var i=0; i<aSpan.length; i++){
aSpan[i].onclick = function(){
var siblings = this.parentNode.children;
for(var j=0; j<siblings.length; j++){
siblings[j].className = '';
}
this.className = 'active';
if(this.parentNode == oDirection || this.parentNode == oCategory || this.parentNode == oType){
returnRes();
}
}
}
function returnRes(){
var o1 = 0, o2 = 0, o3 = 0;
for(var i=0; i<dSpan.length; i++){
if(dSpan[i].className == 'active'){
o1 = i;
}
}
for(var i=0; i<cSpan.length; i++){
if(cSpan[i].className == 'active'){
o2 = i;
}
}
for(var i=0; i<tSpan.length; i++){
if(tSpan[i].className == 'active'){
o3 = i;
}
}
oRes.innerHTML = (dSpan[o1].innerHTML + "," + cSpan[o2].innerHTML + "," + tSpan[o3].innerHTML);
}
</script>
最后附上效果图：
注：本篇博文是 【无条件】的分类筛选
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持脚本之家。
