Develop Reference

Changing admin menu class not working on click

I want to make admin navigation. When I click a menu it will be active until I click another menu. When I click another menu that should then be active. In my admin nav, I used the below code but it is not working. All my CSS is working properly, but I can't set the clicked menu as active. How I can fix this problem?
$(function() {
$('li').click(function() {
$('li.active').removeClass('active');
$(this).addClass('active');
});
});
.admin-menu ul {
padding: 0;
margin: 0;
}
.admin-menu ul li {
list-style: none;
transition: .4s;
}
.admin-menu ul li a {
color: #333;
display: block;
padding: 10px 15px;
font-size: 16px;
text-transform: capitalize;
}
.admin-menu ul li:hover, li.active {
background-color: #F8694A !important;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div class="admin-nav">
<div class="admin-menu">
<ul>
<li class="active"><i class="fas fa-home"></i> Dashboard</li>
<li><i class="far fa-list-alt"></i> Category</li>
<li><i class="fas fa-book"></i> Books</li>
<li><i class="fas fa-users"></i> Users</li>
<li><i class="fas fa-chalkboard-teacher"></i> E-books</li>
<li><i class="fas fa-cart-arrow-down"></i> Orders</li>
<li><i class="fas fa-layer-group"></i> Others</li>
<li><i class="fas fa-cog"></i> Settings</li>
<li><i class="fas fa-power-off"></i> Logout</li>
</ul>
</div>
</div>

Javascript toggle working but shows unstyled menu

On my ruby on rails 5 app I have a menu button that uses javascript to toggle the menu, the toggle function is showing and hiding the menu but the menu is not styled with css anymore
onclick the menu toggles like it should but all the elements are not styled, I dont know if its related to rails or I am missing something here
//Toggle between adding and removing the "show_for_mobile" class to admin_side_bar when the user clicks on the icon
function toggleNav() {
var x = document.getElementById("admin_side_bar");
console.log(x.className)
if (x.className === "admin_side_bar") {
x.className += "show_for_mobile";
} else {
x.className = "admin_side_bar";
}
}
.admin_side_bar {
width: 70%;
height: 50vh;
background-color: #e2e6e8;
position: absolute;
left: 0;
top: 60px;
padding: 20px 10px;
display: none;
}
//show side bar on click
.show_for_mobile {
display: block;
}
.admin_side_bar>ul {
list-style-type: none;
padding: 0;
margin: 0;
}
.admin_side_bar>ul>a {
color: #3d3d3d;
font-size: 19px;
text-decoration: none;
}
.admin_side_bar>ul>a:hover {
color: #06bed3;
}
.admin_side_bar .fas {
margin-right: 20px;
color: #afaeae;
}
.admin_side_bar .fas:hover {
color: #7a7a7a;
}
.admin_side_bar>ul>a>li {
margin-bottom: 20px;
}
<!--Admin side bar-->
<div class="admin_side_bar" id="admin_side_bar">
<ul>
<a href="#">
<li><i class="fas fa-home fa-fw fa-lg"></i>Home</li>
</a>
<a href="#">
<li><i class="fas fa-tshirt fa-fw fa-lg"></i>Items</li>
</a>
<a href="#">
<li><i class="fas fa-gift fa-fw fa-lg"></i>Orders</li>
</a>
<a href="#">
<li><i class="fas fa-chart-line fa-fw fa-lg"></i>Stats</li>
</a>
<a href="#">
<li><i class="fas fa-newspaper fa-fw fa-lg"></i>Blog</li>
</a>
</ul>
</div>

When you add the .show_for_mobile class the original display:none from .admin_side_bar still takes precedence. If all you really want to do is show the nav then you can use x.style.display = "block"; to overwrite display:none from the admin_side_bar class
x.style.display="block" works because it adds inline style which is the highest CSS specificity (it overwrites all other css rules).
From CSS specificity
Inline styles added to an element (e.g., style="font-weight:bold") always overwrite any styles in external stylesheets, and thus can be thought of as having the highest specificity.
document.getElementById("toggleButton").addEventListener("click", toggleNav);
//Toggle between adding and removing the "responsive" class to topnav when the user clicks on the icon
function toggleNav() {
var x = document.getElementById("admin_side_bar");
if (x.className === "admin_side_bar") {
x.className += " show_for_mobile";
x.style.display = "block";
} else {
x.className = "admin_side_bar";
x.style.display = "none";
}
}
.admin_side_bar {
width: 70%;
height: 50vh;
background-color: #e2e6e8;
position: absolute;
left: 0;
top: 60px;
padding: 20px 10px;
display: none;
}
//show side bar on click
.show_for_mobile {
display: block !important;
}
.admin_side_bar>ul {
list-style-type: none;
padding: 0;
margin: 0;
}
.admin_side_bar>ul>a {
color: #3d3d3d;
font-size: 19px;
text-decoration: none;
}
.admin_side_bar>ul>a:hover {
color: #06bed3;
}
.admin_side_bar .fas {
margin-right: 20px;
color: #afaeae;
}
.admin_side_bar .fas:hover {
color: #7a7a7a;
}
.admin_side_bar>ul>a>li {
margin-bottom: 20px;
}
<button id="toggleButton">Toggle Nav</button>
<!--Admin side bar-->
<div class="admin_side_bar" id="admin_side_bar">
<ul>
<a href="#">
<li><i class="fas fa-home fa-fw fa-lg"></i>Home</li>
</a>
<a href="#">
<li><i class="fas fa-tshirt fa-fw fa-lg"></i>Items</li>
</a>
<a href="#">
<li><i class="fas fa-gift fa-fw fa-lg"></i>Orders</li>
</a>
<a href="#">
<li><i class="fas fa-chart-line fa-fw fa-lg"></i>Stats</li>
</a>
<a href="#">
<li><i class="fas fa-newspaper fa-fw fa-lg"></i>Blog</li>
</a>
</ul>
</div>

How do I loop through a list of li tags having same class and change their corresponding styles

I have a list of li tags having same class and and i want to change
their styles and their children elements styles when ever a user hover
over each the li which is the container, below is the code I have
tried. I used getElementsByClassName to get the node list of all li
tags, now, what I want to do is add event listener to each one of them
and manipulate the style of each when ever a user triggers a mouseover
event
function doFirst(){
var playList = document.getElementsByClassName("list");
var play = document.getElementsByClassName("play");
var plus = document.getElementsByClassName("plus");
var title = document.getElementsByClassName("title");
function songHover (e){
playList[0].style.backgroundColor = "#ccc";
play[0].style.display = "block";
plus[0].style.display = "block";
title[0].style.width = "50%";
}
function songHoverOut (e){
playList[0].style.backgroundColor = "#fff";
play[0].style.display = "none";
plus[0].style.display = "none";
title[0].style.width = "auto";
}
playList[0].addEventListener("mouseover", songHover, false);
playList[0].addEventListener("mouseleave", songHoverOut, false);
}
window.addEventListener("load", doFirst, false);
content .song-list{
width: 100%;
height: auto;
}
content .song-list ul{
margin-bottom:4%;
display: flex;
flex-direction: column;
}
content .song-list ul > p{
width: 100%;
padding: 6% 0 1% 0;
font-size: 140%;
color: #2b32b2;
}
content .song-list ul li{
width: 100%;
display: flex;
align-items: center;
justify-content: flex-start;
height: 10%;
margin-bottom: 6%;
padding: 2%;
}
.title{
border: 0px solid red;
flex:1;
max-width: 80%;
display: flex;
flex-wrap: wrap;
justify-content: flex-start;
}
.title h4{
font-weight: normal!important;
font-size: 98%;
white-space: nowrap;
overflow: hidden;
margin-bottom: 4px;
width: 100%;
}
.title p{
font-size: 85%;
white-space: nowrap;
overflow: hidden;
margin-right: 8px;
}
.title p:first-child{
flex:1;
}
.title p:last-child{
max-width: 50%;
}
content .song-list ul li i{
display: none;
border: 0px solid red;
width: 15%;
text-align: center;
padding: 3.8% 0;
}
.play{
}
.plus{
}
.duration{
display: block;
border: 0px solid red;
margin-left: auto;
width: 20%;
text-align: right;
padding: 3.8% 0;
}
<div class="song-list">
<ul>
<p>A</p>
<li class="list">
<span class="title">
<h4>A Sky Full Of Stars</h4>
<p>Coldplay</p>
<p>Ghost Stories</p>
</span>
<i class="play">></i>
<i class="plus">+</i>
<span class="duration">4:28</span>
</li>
<li class="list">
<span class="title">
<h4>The A Team (george.ortha#ferialaw.com)</h4>
<p>Ed Sheeran</p>
<p>+</p>
</span>
<i class="play">></i>
<i class="plus">+</i>
<span class="duration">4:18</span>
</li>
<li class="list">
<span class="title">
<h4>Adore You</h4>
<p>miley Cyrus</p>
<p>bangerz</p>
</span>
<i class="play">></i>
<i class="plus">+</i>
<span class="duration">4:38</span>
</li>
<li class="list">
<span class="title">
<h4>Adorn (george.ortha#ferialaw.com)</h4>
<p>Miguel</p>
<p>Kaleidoscope Dream</p>
</span>
<i class="play">></i>
<i class="plus">+</i>
<span class="duration">3:13</span>
</li>
<li class="list">
<span class="title">
<h4>Again</h4>
<p>Fetty Wrap</p>
<p>Billboard Hot 100 Singles Chart</p>
</span>
<i class="play">></i>
<i class="plus">+</i>
<span class="duration">5:12</span>
</li>
</ul>
<ul>
<p>B</p>
<li class="list">
<span class="title">
<h4>
Back to December (george.ortha#ferialaw.com)
</h4>
<p>Tailor Swift</p>
<p>2011 Billboard Chart</p>
</span>
<i class="play">></i>
<i class="plus">+</i>
<span class="duration">4:43</span>
</li>
<li class="list">
<span class="title">
<h4>Bad (george.ortha#ferialaw.com)</h4>
<p>Wale</p>
<p>The Gifted</p>
</span>
<i class="play">></i>
<i class="plus">+</i>
<span class="duration">4:14</span>
</li>
<li class="list">
<span class="title">
<h4>Bad Blood</h4>
<p>Tailor Swift</p>
<p>2011 Billboard Chart</p>
</span>
<i class="play">></i>
<i class="plus">+</i>
<span class="duration">5:12</span>
</li>
<li class="list">
<span class="title">
<h4>Bartender</h4>
<p>Lady Antebellum</p>
<p>747</p>
</span>
<i class="play">></i>
<i class="plus">+</i>
<span class="duration">5:12</span>
</li>
<li class="list">
<span class="title">
<h4>Believe Me</h4>
<p>Lil Wayne</p>
<p>Believe Me</p>
</span>
<i class="play">></i>
<i class="plus">+</i>
<span class="duration">5:12</span>
</li>
</ul>
</div>

I think that simpler solution is css :hover pseudo class (change styles when user hovers element with cursor).
Example: .parent:hover .some-child {hover styles}.

You seem to be a bit confused about the "addEventListener". You do not have to add an event listener to the window to initialize the code. Simply wrap it in a (function(){ // Your code })(); and it will execute as soon as possible.
But here you have an jsfiddle about how you could go about it: https://jsfiddle.net/g59x59rr/12/
Though, I used "querySelectorAll" instead of "getElementsByClassName". But I hope my solution will make sense to you. :)
(function() {
var lielem = document.querySelectorAll(".li"), i;
for (i = 0; i < lielem.length; i++) {
lielem[i].addEventListener('mouseover', function() {
this.style.color = 'red';
this.addEventListener('mouseout', function(){
this.style.color = 'black';
});
});
}
})();
<ul>
<li class="li">First Li</li>
<li class="li">Second Li</li>
<li class="li">Third Li</li>
</ul>

jQuery .each() span.Title get .text() connect with "/"

Live Snippet
$(document).ready(function() {
"use strict";
var PushState, Current;
$(document).on('click', function(e) {
if ($(e.target).closest($('.page-breadcrumb')).length) {
$(e.target).closest('li').nextAll().remove();
PushState = $('.page-breadcrumb').children('li').each(function() {
return $(this).children().find('span.Title').text();
}).get().join("/");
console.log(PushState);
Current = $(e.target).closest('a').html();
$(e.target).closest('li').remove();
$('.page-breadcrumb').append(Current);
}
});
});
.page-bar {
box-sizing:border-box;
position: relative;
width:100%;
height:61px;
padding: 0 20px;
}
.page-bar .page-breadcrumb {
display: inline-block;
float: left;
padding: 20px 0;
margin: 0;
list-style: none;
}
.page-bar .page-breadcrumb>li {
display: inline-block;
}
.page-bar .page-breadcrumb>li,
.page-bar .page-breadcrumb>li a {
font-size: 14px;
color: #A3A3A3;
text-decoration: none;
}
.page-bar .page-breadcrumb>li a:hover {
text-decoration: underline;
}
.page-bar .page-breadcrumb>li>i.fa-arrow-right {
font-size: 12px;
margin: 0 5px;
position: relative;
opacity: .4;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<link rel="stylesheet" type="text/css" href="http://netdna.bootstrapcdn.com/font-awesome/4.4.0/css/font-awesome.min.css">
<div class="page-bar">
<div class="page-breadcrumb">
<li>
<i class="fa fa-home"></i> <span class="Title">Dashboard</span>
</li>
<li><i class="fa fa-arrow-right"></i></li>
<li>
<a href="javascript:;">
<i class="fa fa-user"></i>
<span class="Title">Account</span>
</a>
</li>
<li><i class="fa fa-arrow-right"></i></li>
<li>
<a href="javascript:;">
<i class="fa fa-envelope"></i>
<span class="Title">Messages</span>
</a>
</li>
<li><i class="fa fa-arrow-right"></i></li>
<li></li>
<i class="fa fa-plus"></i>
<span class="Title">Compose</span>
</div>
</div>
Outcome
Dependant on where you click, the outcome is as follows (I clicked on 'Account'):
[object HTMLLIElement]/[object HTMLLIElement]/[object HTMLLIElement]
What I'm Trying To Achieve
If $(e.target) is $('.page-breadcrumb li a')
Initiate everything the script currently does
PushState should return (clicking on Messages example):
Dashboard/Account/Messages
Questions
How do I return the text only of each span.Title connectings all with '/'?

Using return in each callback is causing you to loose the data .If you even have this
PushState = $('.page-breadcrumb').children('li').each(function() {
return 0;
}).get().join("/");
you would still be getting the same results because what you are getting is just the outer <li> elements .So instead of returning use some variable in which you can store the individual results of eachs callback
Make some global like variable var v =[]; outside each and use below modification
$('.page-breadcrumb').children('li').each(function() {
var txt = $(this).children().find('span.Title').text();
if(txt != '')
v.push(txt);
});
PushState = v.join('/');

Target the selector you want in the event listener:
Change
$(document).on('click', function(e) {
To
$(document).on('click','.page-breadcrumb a' function(e) {
// "this" will be instance of .page-breadcrumb a
var spanText = $(this).find('.Title').text()
.....

ng2-dropdown menu not working in angular2

I've been stuck on this for hours and hours and became pretty desperate. So I have this angular2 applicaton made for a school project but what I want to do is when i click on the + button this dropdown menu comes down and when i click on it again, or when I click on a link, it closes again. Right now it just stays open all the time and doesn't do anything when I click it
I have tried many different things, from ng2-dropdown to a javascript file that shows or hides the menu. I am out of options and getting really frustrated on this.
this is the html element in the browser before i click the +
this is the html element in the browser after i click the +
I have done the proper imports for the ng2-dropdown module which should make it work. It might be something small and stupid, but I don't see it.
This is my app.component which has the navigation bar as a template. on click i route to other components html's.
#Component({
selector: 'ls-app',
styleUrls: ['./app/css/fonts.css','./app/css/sass.css'],
template: `
<header id="header">
<nav role='navigation' class="main-nav" id="main-nav">
<ul id="main-nav-list">
<div class="navgroup">
<li><a [routerLink]="['/home']"class="navlogo" href="./leagues/home.component.html"><img class="logo" src="./app/img/logo.png" alt="logo"></a></li>
</div>
<div class="navgroup">
<li>
<a [routerLink]="['/play']"class="navtitle" href="./leagues/play.component.html"><img class="imgMainNav" src="./app/img/play.svg" alt="play">Speel</a>
</li>
<li><a [routerLink]="['/stats']"class="navtitle" href="./leagues/stats.component.html"><img class="imgMainNav" src="./app/img/chart.png" alt="chart">Stats</a></li>
<li><a [routerLink]="['/leagues']"class="navtitle" href="./leagues/join-league.component.html"><img class="imgMainNav" src="./app/img/chart.png" alt="chart">Join League</a></li>
</div>
<div class="navgroup login">
<div class="add-button" dropdown [dropdownToggle]="true">
<div dropdown-open > +</div>
<ul class="dropdown" >
<a [routerLink]="['/account']"href="leagues/account.component.html"><li><i class="fa fa-check-square-o fa-2"></i>Mijn account</li></a>
<a [routerLink]="['/play']"href="leagues/play.component.html"><li><i class="fa fa-comments fa-2"></i>Plaats pronostiek</li></a>
<a [routerLink]="['/leagues']"href="leagues/join-league.component.html"><li><i class="fa fa-clipboard fa-2"></i>Nieuwe competitie</li></a>
<li><i class="fa fa-user-plus fa-2"></i>Shop</li>
<li><i class="fa fa-user-plus fa-2"></i>Log out</li>
</ul>
</div>
<li><a class="navtitle loginnav login-window" onclick="hierkomtdefunctievanjavascriptfile()" ><img class="imgMainNav" src="./app/img/fa-user.png" alt="login">Login/Register</a></li>
</div>
</ul>
</nav>
</header>
And this is my css (actually sass but gets converted when run) for the dropdown class just in case. So when i click on the button the class is .dropdown and when you click it again it should change to .hidden
.dropdown {
position: relative;
top: 25px;
margin: 0 auto;
padding: 5px 0 0 0;
width: 200px;
height: auto;
background: $primary_color1_white;
border: 1px solid $primary_color2_black;
border-radius: 3px;
list-style: none;
&:before {
content: "";
border-width: 1px 0 0 1px;
border-style: solid;
border-color: #A1A4AA;
background: $primary_color1_white;
height: 14px;
width: 14px;
position: absolute;
top: -7px;
transform: translateX(-50%) rotate(45deg);
}
a {
text-decoration: none;
color: $primary_color2_black;
font-size: 1em;
li {
text-align: left;
padding: 10px 15px;
margin: 0;
i {
margin-right: 10px;
}
}
&:hover {
color: #ffffff;
li {
background: linear-gradient(to top right, $primary_color1_white, $melon 30%); } } } }
.hidden{visibility: hidden;}

in your template modify this :
<div class="add-button" dropdown>
<div (click)="toggleDropdown()"> +</div>
<ul class="dropdown" *ngIf="showDropdown">
<a (click)="toggleDropdown()" [routerLink]="['/account']" href="leagues/account.component.html">
<li><i class="fa fa-check-square-o fa-2"></i>Mijn account</li>
</a>
<a (click)="toggleDropdown()" [routerLink]="['/play']" href="leagues/play.component.html">
<li><i class="fa fa-comments fa-2"></i>Plaats pronostiek</li>
</a>
<a (click)="toggleDropdown()" [routerLink]="['/leagues']" href="leagues/join-league.component.html">
<li><i class="fa fa-clipboard fa-2"></i>Nieuwe competitie</li>
</a>
<a (click)="toggleDropdown()" href="">
<li><i class="fa fa-user-plus fa-2"></i>Shop</li>
</a>
<a (click)="toggleDropdown()" href="">
<li><i class="fa fa-user-plus fa-2"></i>Log out</li>
</a>
</ul>
</div>
and then in your component logic:
showDropdown: boolean = false;
toggleDropdown():void {
this.showDropdown = !this.showDropdown;
}