Tips for resolving the strange behavior on a webpage with multiple active buttons labeled "portfolio"

Question

Tips for resolving the strange behavior on a webpage with multiple active buttons labeled "portfolio"

I'm currently dealing with an issue regarding the behavior of a particular webpage that is quite unusual. I have provided a link to the Github page where this issue is occurring. Interestingly, the problem seems to be resolved when I remove the nav tag, however, it is essential for the functionality I require.

Upon further investigation by deleting the nav element from the developer console, I noticed that the nav tag is impacting the section below, specifically the "workshop_intro".

For reference, here is the link to the Github page:

Github repository: https://github.com/sarang13579/expt

<section class="workshop_intro">
<div class="container py-2">
  <h1 class="py-4"><strong>Gallery</strong></h1>
  <p>Cut and Engraved products range</p>

  <h2>PORTFOLIO</h2>
  <div id="myBtnContainer">
    <button class="btn active" onclick="filterSelection('all')"> Show all</button>
    <button class="btn" onclick="filterSelection('wood')"> Wood Cutting and Engraving</button>
    <button class="btn" onclick="filterSelection('stone')"> Stone Engraving</button>
    <button class="btn" onclick="filterSelection('glass')"> Glass Engraving</button>
    <button class="btn" onclick="filterSelection('others')"> Others Cutting and Engraving</button>
  </div>

My expectation is that the buttons in the portfolio section "workshop_intro" highlight one at a time without the need to remove the nav tag.

javascript html css bootstrap-4

Answer 1

Answer №1

There might be an issue with another HTML element containing the "active" class. When using the query

document.getElementsByClassName("active");

, it retrieves the li element from the nav bar

<li class="nav-item active">
    <a class="nav-link px-5" href="index.html">Home</a>
</li>

To target the button more precisely, you can utilize

document.querySelector(".btn.active");

Presented below is the functional code

filterSelection("all") // Execute the function and show all columns
function filterSelection(c) {
  var x, i;
  x = document.getElementsByClassName("column");
  if (c == "all") c = "";
  // Add the "show" class (display:block) to the filtered elements, and remove the "show" class from the elements that are not selected
  for (i = 0; i < x.length; i++) {
    w3RemoveClass(x[i], "show");
    if (x[i].className.indexOf(c) > -1) w3AddClass(x[i], "show");
  }
}

// Show filtered elements
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];
    }
  }
}

// Hide elements that are not selected
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.querySelector(".btn.active");
 current.classList.remove("active");
    this.classList.add("active");
  });
}

.main {
  max-width: 1000px;
  margin: auto;
}

h1 {
  font-size: 50px;
  word-break: break-all;
}

.row {
  margin: 8px -16px;
}

/* Add padding BETWEEN each column (if you want) */
.row,
.row > .column {
  padding: 8px;
}

/* Create three equal columns that floats next to each other */
.column {
  float: left;
  width: 33.33%;
  display: none; /* Hide columns 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;
}

/* Add a grey background color on mouse-over */
.btn:hover {
  background-color: #ddd;
}

/* Add a dark background color to the active button */
.btn.active {
  background-color: #666;
   color: white;
}



body, html {
font-family: 'Open Sans', sans-serif;
height: 100%;
overflow-x:hidden;
scroll-behavior: smooth;
}

* {
  margin: 0;
  padding: 0;
}

.row{
margin: 0;
}



/*HEADER*/

/* Header Section */
.intro {
display: table;
width: 100%;
min-height: 88vh;
padding: 0;
background: url(../images/tooplate_middle_alt2.png) top center no-repeat;
background-color: #f6f6f6;
-webkit-background-size: cover;
-moz-background-size: cover;
background-size: cover;
-o-background-size: cover;
}

.intro .fa {
font-size: 94px;
margin-bottom: 40px;
color: #fff;
}
.intro h3 {
color: #fff;
font-size: 45px;
font-weight: 700;
margin-top: 0;
margin-bottom: 10px;
text-transform: uppercase;
}
.intro p {
color: #fff;
font-size: 22px;
margin-top: 20px;
line-...

Answer 2

There might be an issue with another HTML element containing the "active" class. When using the query

document.getElementsByClassName("active");

, it retrieves the li element from the nav bar

<li class="nav-item active">
    <a class="nav-link px-5" href="index.html">Home</a>
</li>

To target the button more precisely, you can utilize

document.querySelector(".btn.active");

Presented below is the functional code

filterSelection("all") // Execute the function and show all columns
function filterSelection(c) {
  var x, i;
  x = document.getElementsByClassName("column");
  if (c == "all") c = "";
  // Add the "show" class (display:block) to the filtered elements, and remove the "show" class from the elements that are not selected
  for (i = 0; i < x.length; i++) {
    w3RemoveClass(x[i], "show");
    if (x[i].className.indexOf(c) > -1) w3AddClass(x[i], "show");
  }
}

// Show filtered elements
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];
    }
  }
}

// Hide elements that are not selected
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.querySelector(".btn.active");
 current.classList.remove("active");
    this.classList.add("active");
  });
}

.main {
  max-width: 1000px;
  margin: auto;
}

h1 {
  font-size: 50px;
  word-break: break-all;
}

.row {
  margin: 8px -16px;
}

/* Add padding BETWEEN each column (if you want) */
.row,
.row > .column {
  padding: 8px;
}

/* Create three equal columns that floats next to each other */
.column {
  float: left;
  width: 33.33%;
  display: none; /* Hide columns 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;
}

/* Add a grey background color on mouse-over */
.btn:hover {
  background-color: #ddd;
}

/* Add a dark background color to the active button */
.btn.active {
  background-color: #666;
   color: white;
}



body, html {
font-family: 'Open Sans', sans-serif;
height: 100%;
overflow-x:hidden;
scroll-behavior: smooth;
}

* {
  margin: 0;
  padding: 0;
}

.row{
margin: 0;
}



/*HEADER*/

/* Header Section */
.intro {
display: table;
width: 100%;
min-height: 88vh;
padding: 0;
background: url(../images/tooplate_middle_alt2.png) top center no-repeat;
background-color: #f6f6f6;
-webkit-background-size: cover;
-moz-background-size: cover;
background-size: cover;
-o-background-size: cover;
}

.intro .fa {
font-size: 94px;
margin-bottom: 40px;
color: #fff;
}
.intro h3 {
color: #fff;
font-size: 45px;
font-weight: 700;
margin-top: 0;
margin-bottom: 10px;
text-transform: uppercase;
}
.intro p {
color: #fff;
font-size: 22px;
margin-top: 20px;
line-...

Tips for resolving the strange behavior on a webpage with multiple active buttons labeled "portfolio"

Answer №1

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