I want to add recursive filters using simple HTML buttons/javascript. Till now, i have only been able to add one level of filter. What i want to do is - allow the user to select the filter in 2 stages. For example, user should be able to filter on experience range "10+" and then further filter on next stage such as "Operations". So this way only profiles that fit 10+ experience and Operations are shown.
I have been able to add filter and logic for one stage. That is, the code works and filters on experience range (5-8, 8-10, 10+), but unable to implement the second stage of filter (IT, Operations etc.)
filterSelection("all")
function filterSelection(c) {
var x, i;
x = document.getElementsByClassName("column");
if (c == "all") c = "";
for (i = 0; i < x.length; i++) {
w3RemoveClass(x[i], "show");
if (x[i].className.indexOf(c) > -1) w3AddClass(x[i], "show");
}
}
function w3AddClass(element, name) {
var i, arr1, arr2;
arr1 = element.className.split(" ");
arr2 = name.split(" ");
for (i = 0; i < arr2.length; i++) {
if (arr1.indexOf(arr2[i]) == -1) {
element.className += " " + arr2[i];
}
}
}
function w3RemoveClass(element, name) {
var i, arr1, arr2;
arr1 = element.className.split(" ");
arr2 = name.split(" ");
for (i = 0; i < arr2.length; i++) {
while (arr1.indexOf(arr2[i]) > -1) {
arr1.splice(arr1.indexOf(arr2[i]), 1);
}
}
element.className = arr1.join(" ");
}
// Add active class to the current button (highlight it)
var btnContainer = document.getElementById("myBtnContainer");
var btns = btnContainer.getElementsByClassName("btn");
for (var i = 0; i < btns.length; i++) {
btns[i].addEventListener("click", function() {
var current = document.getElementsByClassName("active");
current[0].className = current[0].className.replace(" active", "");
this.className += " active";
});
}* {
box-sizing: border-box;
}
body {
background-color: #f1f1f1;
padding: 20px;
font-family: Arial;
}
/* Center website */
.main {
max-width: 1000px;
margin: auto;
}
h1 {
font-size: 50px;
word-break: break-all;
}
.row {
margin: 8px -16px;
}
/* Add padding BETWEEN each column */
.row,
.row>.column {
padding: 8px;
}
/* Create four equal columns that floats next to each other */
.column {
float: left;
width: 25%;
display: none;
/* Hide all elements by default */
}
/* Clear floats after rows */
.row:after {
content: "";
display: table;
clear: both;
}
/* Content */
.content {
background-color: white;
padding: 10px;
}
/* The "show" class is added to the filtered elements */
.show {
display: block;
}
/* Style the buttons */
.btn {
border: none;
outline: none;
padding: 12px 16px;
background-color: white;
cursor: pointer;
}
.btn:hover {
background-color: #ddd;
}
.btn.active {
background-color: #666;
color: white;
}
/* Responsive layout - makes a two column-layout instead of four columns */
@media screen and (max-width: 900px) {
.column {
width: 50%;
}
}
/* Responsive layout - makes the two columns stack on top of each other instead of next to each other */
@media screen and (max-width: 600px) {
.column {
width: 100%;
}
}<!-- MAIN (Center website) -->
<div class="main">
<div id="myBtnContainer">
<button class="btn active" onclick="filterSelection('all')"> Show all</button>
<button class="btn" onclick="filterSelection('5-8')"> 5-8</button>
<button class="btn" onclick="filterSelection('8-10')"> 8-10</button>
<button class="btn" onclick="filterSelection('10+')"> 10+</button>
</div>
<div id="myBtnContainer">
<button class="btn" onclick="filterSelection('Operations')"> Operations</button>
<button class="btn" onclick="filterSelection('Manufacturing')"> Manufacturing</button>
</div>
<!-- Portfolio Gallery Grid -->
<div class="row">
<div class="column 8-10">
<div class="content">
<a href="https://xxx" target="_blank">
<img src="https:xxx" alt="Bagish" style="width:100%" ;height:auto;>
<h4>abc</h4>
<p>8+ Experience in Oil&Gas, Manufacturing</p>
</div>
</div>
<div class="column 10+">
<div class="content">
<a href="https://xxx">
<img src="xxx" alt="def" style="width:100%" ;height:auto;>
<h4>def</h4>
<p>10+ Experience in Oil&Gas, Manufacturing</p>
</div>
</div>
<div class="column 10+">
<div class="content">
<a href="https://abc">
<img src="abc" ;height:auto;>
<h4>ghi</h4>
<p>13+ Experience in IT Program Management</p>
</div>
</div>
<!-- END GRID -->
</div>
<!-- END MAIN -->
</div>Please help me add another level of filter for IT/Operations etc.
