Develop Reference

localStorage to save navbar state

I want to use localStorage to store the sidebar toggle so browser can remember the last toggle. Can someone please take a look at this code and tell me why it's not working?
$(document).ready(function() {
var sidebarshow = localStorage.getItem('sidebar') == 'true';
$('#sidebar').toggleClass('active', sidebar);
$("#toggle").click(function() {
$("#sidebar").toggleClass("slow",function() {
localStorage.setItem('sidebarshow', 'active');
});
$("#sidebar").toggleClass("active");
});
});
CSS
#sidebar.active {
position: fixed;
top: 0;
left: 0;
background: #1F6482;
width: 250px;
height: 100%;
color: #FFF;
}
#sidebar {
position: fixed;
top: 0;
left: 0;
background: #1F6482;
width: 75px;
height: 100%;
color: #FFF;
}

Problem: 1) you did not set the localStorage for key 'sidebar', But accessing will result into unexpected values.
var sidebarshow = localStorage.getItem('sidebar') == 'true';
Problem: 2) you are setting the localStorage for key 'sidebarshow', But you are not used any where. (at least in above code)
localStorage.setItem('sidebarshow', 'active');
Think of localStorage as a just object with key and values are of type string. Make sure to set the value first and get them later.
Here is sample code working.
$(document).ready(function() {
/*
if (window && window.localStorage.getItem('sidebar') === 'active') {
// if it active show it as active
$("#sidebar").addClass("active");
} else {
$("#sidebar").removeClass("active");
} */
$("#toggle").click(function() {
$("#sidebar").toggleClass("active");
var updated = '';
if (window.localStorage.getItem('sidebar') === 'active') {
updated = 'not_active';
} else {
updated = 'active';
}
window.localStorage.setItem('sidebar', updated);
});
});
#sidebar.active {
position: fixed;
top: 0;
left: 0;
background: #1F6482;
width: 250px;
height: 100%;
color: #FFF;
}
#sidebar {
position: fixed;
top: 0;
left: 0;
background: #1F6482;
width: 75px;
height: 100%;
color: #FFF;
}
#toggle {
margin-left: 400px;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div id="sidebar"> Sidebar here </div>
<button id="toggle"> toggle </button>
Please check the screenshot of chrome debug console example with slightly changed to test.

If you're using the Admin-LTE v-3 package for front-end and wants to save the state of sidebar-collapse use this technique........ and an above solution is also working...
https://stackoverflow.com/a/59504461/8455396
Just read carefully and perform an action.
html tag hamburger button
<a class="nav-link" data-widget="pushmenu" href="#" role="button"><i class="fas fa-bars"></i></a>
<script>
$(document).ready(function() {
/*
check condition what value is stored in local storage if nothing then default
sidebar action would be performed you don't have to worry about this.
In Admin lte version 3 sidebar-collapse added in body tag inspect you browser and check
*/
if (window.localStorage.getItem('sidebar-toggle-collapsed') === 'false') {
// if it is off sidebar-collapse close
$("body").addClass("sidebar-collapse");
} else {
$("body").removeClass("sidebar-collapse");
}
// Perform click event action
$("[data-widget='pushmenu']").click(function() {
var buttonClickedValue = '';
if (window.localStorage.getItem('sidebar-toggle-collapsed') === 'false') {
buttonClickedValue = 'true';
} else {
buttonClickedValue = 'false';
}
// store value in local storage
window.localStorage.setItem('sidebar-toggle-collapsed', buttonClickedValue );
});
});
</script>

How to call jQuery event from another page?

Hi I have a question regarding the issue as title.
There is Page 1 with jQuery controlling to show the div, section 1 and section 2, as below.
$('.section2,.click1').fadeOut(0);
$('.click2').on('click', function() {
$(this).fadeOut(0);
$('.section1').fadeOut();
$('.section2, .click1').fadeIn();
});
$('.click1').on('click', function() {
$(this).fadeOut(0);
$('.section2').fadeOut();
$('.section1, .click2').fadeIn();
});
a {
display:block;
}
.section-wrapper {
position: relative;
width:400px;
height: 140px;
}
.section-box {
width: 100%;
height: 100%;
}
.section1 {
background: red;
}
.section2 {
position: absolute;
top: 0;
left: 0;
background: yellow;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<a class="click2">Click to section2.</a>
<a class="click1">Click to section1.</a>
<div class="section-wrapper">
<div class="section-box section1">
I am section 1, default section.
</div>
<div class="section-box section2" id="Section2">
I am section 2.
</div>
</div>
However, when I am at Page 2, there's a button need to link me to the section 2.
Go to Page 1 Section 2
How can I call the jquery function to show the section 2 and hide the section 1?

This is more generic
$(function() {
$('.click').on('click', function() {
let sectionNumber = $(this).data("section");
$(".click").show();
$(this).fadeOut(0);
$('.section-box').not(".section"+sectionNumber).fadeOut();
$('.section'+sectionNumber).fadeIn()
});
let hash = "#section2" // change to location.hash when happy
let section = hash ? hash.substring(1).replace("scrolldown&","") : "section1";
if (hash) {
let sectionNumber = hash.replace(/\D+/,"");
$("[data-section="+sectionNumber+"]").click()
}
});
a {
display: block;
}
.section-wrapper {
position: relative;
width: 400px;
height: 140px;
}
.section-box {
width: 100%;
height: 100%;
}
.section1 {
background: red;
}
.section2 {
position: absolute;
top: 0;
left: 0;
background: yellow;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<a class="click" data-section="2">Click to section 2.</a>
<a class="click" data-section="1">Click to section 1.</a>
<div class="section-wrapper">
<div class="section-box section1">
I am section 1, default section.
</div>
<div class="section-box section2" id="Section2">
I am section 2.
</div>
</div>

You could check for hash tag in page url and show/hide the element.
Edited
$(document).ready(function(){
if(window.location.hash) {
var hashVal = window.location.hash.substring(1);
if(hashVal == "Section2"){
var divId = "#"+hashVal; //id of the section 2 element
$('.section1').fadeOut();
$('.section2, .click1').fadeIn();
var pos = $(divId).offset().top; //top position relative to the document
$('body, html').animate({scrollTop: pos});
}
} else {
// No hash value
}
});

Adding touchEvents for navigation

I'm building a little site with full page horizontal and vertical scrolling. Check out a codepen demo here. There is a bug with the demo, the 'left' and 'up' buttons don't work how they're supposed to. The 'right' and 'down' buttons work fine. I just threw that together to show you what I'm talking about (excuse my inline styling).
First off, I need to incorporate touchEvents to make the full page scrolling work on mobile devices. If the user swipes left, right, down, or up, the page should move accordingly. I'm still learning the fundamentals of JS and I have no idea where to start with that.
Secondly, I have a few doubts about whether or not I'm using best practices in my JS. For one thing, I repeat myself a lot. For another, I'm pretty sure there's a simpler method for what I'm trying to do. I'd appreciate it if you could take a look at my code and give me some suggestions. Thanks!

You need to modify these two in CSS:
#center.cslide-up {
top: 100vh;
}
#center.cslide-left {
left: 100vw;
}
First one: When the up button is clicked, it will move 100vh down from top position.
Second one: When the left button is clicked, it will move 100vw right from left position.
As far as for mobile phones, I'd suggest try using:
Hammer.js : https://hammerjs.github.io/
Or Refer this answer: https://stackoverflow.com/a/23230280/2474466
And you can reduce the lines of code by cooking up a function and calling it like this: (Make sure to declare panel2 variable globally)
btnL.addEventListener('click', function() {
swiper("left");
});
btnLBack.addEventListener('click', function() {
swiper("left");
});
function swiper(dir){
panelC.classList.toggle('cslide-'+dir);
if(dir=="up") panel2=panelU;
else if(dir=="right") panel2=panelR;
else if(dir=="left") panel2=panelL;
else if(dir=="down") panel2=panelD;
panel2.classList.toggle('slide-'+dir);
}
The function swiper takes a single argument dir which determines in which direction it has to be moved. And you can concatenate the dir with cslide- to move the center container. And use if/else conditions to determine which panel to move and use the same idea for it as well.
And to make it more simpler and a bit efficient, if you're not making use of any other eventlisteners for the buttons or panels and the only aim is to toggle the class around, you can just use inline onClick="swiper('direction');" attribute on the panels and buttons to trigger it only when needed instead of defining the eventlisteners in the script.
var panel2;
var panelC = document.getElementById('center');
var panelU = document.getElementById('up');
var panelR = document.getElementById('right');
var panelD = document.getElementById('down');
var panelL = document.getElementById('left');
var btnU = document.getElementById('btn-up');
var btnR = document.getElementById('btn-right');
var btnD = document.getElementById('btn-down');
var btnL = document.getElementById('btn-left');
var btnUBack = document.getElementById('btn-up-back');
var btnRBack = document.getElementById('btn-right-back');
var btnDBack = document.getElementById('btn-down-back');
var btnLBack = document.getElementById('btn-left-back');
btnU.addEventListener('click', function() {
swiper("up");
});
btnUBack.addEventListener('click', function() {
swiper("up");
});
btnR.addEventListener('click', function() {
swiper("right");
});
btnRBack.addEventListener('click', function() {
swiper("right");
});
btnD.addEventListener('click', function() {
swiper("down");
});
btnDBack.addEventListener('click', function() {
swiper("down");
});
btnL.addEventListener('click', function() {
swiper("left");
});
btnLBack.addEventListener('click', function() {
swiper("left");
});
function swiper(dir){
panelC.classList.toggle('cslide-'+dir);
if(dir=="up") panel2=panelU;
else if(dir=="right") panel2=panelR;
else if(dir=="left") panel2=panelL;
else if(dir=="down") panel2=panelD;
panel2.classList.toggle('slide-'+dir);
}
* {
margin: 0;
padding: 0;
transition: 1.5s ease;
-webkit-transition: 1.5s ease;
overflow: hidden;
background: white;
}
.panel {
width: 100vw;
height: 100vh;
display: block;
position: absolute;
border: 1px solid blue;
}
.btn {
position: absolute;
padding: 16px;
cursor: pointer;
}
#center {
top: 0px;
left: 0px;
right: 0px;
bottom: 0px;
}
#center.cslide-up {
top: 100vh;
}
#center.cslide-left {
left: 100vw;
}
#center.cslide-right {
left: -100vw;
}
#center.cslide-down {
top: -100vh;
}
#up {
top: -100vh;
}
#up.slide-up {
top: 0;
}
#right {
right: -100vw;
}
#right.slide-right {
right: 0;
}
#down {
bottom: -100vh;
}
#down.slide-down {
bottom: 0;
}
#left {
left: -100vw
}
#left.slide-left {
left: 0;
}
<div class="panel" id="center">
<div class="btn" id="btn-up" style="text-align: center; width: 100%;">
up
</div>
<div class="btn" id="btn-right" style="right: 0; top: 50%;">
right
</div>
<div class="btn" id="btn-down" style="text-align: center; bottom: 0; width: 100%;">
down
</div>
<div class="btn" id="btn-left" style="top: 50%;">
left
</div>
</div>
<div class="panel" id="up">
<div class="btn" id="btn-up-back" style="bottom: 0; width: 100%; text-align: center;">
back
</div>
</div>
<div class="panel" id="right">
<div class="btn" id="btn-right-back" style="left: 0; top: 50%;">
back
</div>
</div>
<div class="panel" id="down">
<div class="btn" id="btn-down-back" style="top: 0; width: 100%; text-align: center;">
back
</div>
</div>
<div class="panel" id="left">
<div class="btn" id="btn-left-back" style="right: 0; top: 50%;">
back
</div>
</div>

Dropdown menu open on hover instead of click on shopify

I'm trying to edit a shopify theme and the last part I'm stuck on is getting these navigation menus to open on hovering instead of clicking. The css I have for the menus is:
.site-nav {
position: relative;
padding: 0;
text-align: center;
margin: 25px 0;
a {
padding: 3px 10px;
}
li {
display: inline-block;
}
}
.site-nav--centered {
padding-bottom: $gutter-site-mobile;
}
/*================ Site Nav Links ================*/
.site-nav__link {
display: block;
white-space: nowrap;
.site-nav--centered & {
padding-top: 0;
}
.icon-chevron-down {
width: 8px;
height: 8px;
margin-left: 2px;
.site-nav--active-dropdown & {
transform: rotateZ(-180deg);
}
}
&.site-nav--active-dropdown {
border: 1px solid $color-border;
border-bottom: 1px solid transparent;
z-index: 2;
}
}
/*================ Dropdowns ================*/
.site-nav--has-dropdown {
position: relative;
}
.site-nav--has-centered-dropdown {
position: static;
}
.site-nav__dropdown {
display: none;
position: absolute;
left: 0;
padding: $dropdown-padding;
margin: 0;
z-index: $z-index-dropdown;
text-align: left;
border: 1px solid $color-border;
background: $color-bg;
left: -1px;
top: 41px;
.site-nav__link {
padding: 4px 30px 4px 0;
}
.site-nav--active-dropdown & {
display: block;
}
li {
display: block;
}
}
// Centered dropdown
.site-nav__dropdown--centered {
width: 100%;
border: 0;
background: none;
padding: 0;
text-align: center;
}
The HTML and Liquid for the header is:
{% if section.settings.align_logo == 'left' %}
<nav class="grid__item medium-up--one-half small--hide" id="AccessibleNav" role="navigation">
{% include 'site-nav' %}
</nav>
{% endif %}
And the relevant menu Javascript:
/* ================ MODULES ================ */
window.theme = window.theme || {};
theme.Header = (function() {
var selectors = {
body: 'body',
navigation: '#AccessibleNav',
siteNavHasDropdown: '.site-nav--has-dropdown',
siteNavChildLinks: '.site-nav__child-link',
siteNavActiveDropdown: '.site-nav--active-dropdown',
siteNavLinkMain: '.site-nav__link--main',
siteNavChildLink: '.site-nav__link--last'
};
var config = {
activeClass: 'site-nav--active-dropdown',
childLinkClass: 'site-nav__child-link'
};
var cache = {};
function init() {
cacheSelectors();
cache.$parents.on('click.siteNav', function(evt) {
var $el = $(this);
if (!$el.hasClass(config.activeClass)) {
// force stop the click from happening
evt.preventDefault();
evt.stopImmediatePropagation();
}
showDropdown($el);
});
// check when we're leaving a dropdown and close the active dropdown
$(selectors.siteNavChildLink).on('focusout.siteNav', function() {
setTimeout(function() {
if ($(document.activeElement).hasClass(config.childLinkClass) || !cache.$activeDropdown.length) {
return;
}
hideDropdown(cache.$activeDropdown);
});
});
// close dropdowns when on top level nav
cache.$topLevel.on('focus.siteNav', function() {
if (cache.$activeDropdown.length) {
hideDropdown(cache.$activeDropdown);
}
});
cache.$subMenuLinks.on('click.siteNav', function(evt) {
// Prevent click on body from firing instead of link
evt.stopImmediatePropagation();
});
}
function cacheSelectors() {
cache = {
$nav: $(selectors.navigation),
$topLevel: $(selectors.siteNavLinkMain),
$parents: $(selectors.navigation).find(selectors.siteNavHasDropdown),
$subMenuLinks: $(selectors.siteNavChildLinks),
$activeDropdown: $(selectors.siteNavActiveDropdown)
};
}
function showDropdown($el) {
$el.addClass(config.activeClass);
// close open dropdowns
if (cache.$activeDropdown.length) {
hideDropdown(cache.$activeDropdown);
}
cache.$activeDropdown = $el;
// set expanded on open dropdown
$el.find(selectors.siteNavLinkMain).attr('aria-expanded', 'true');
setTimeout(function() {
$(window).on('keyup.siteNav', function(evt) {
if (evt.keyCode === 27) {
hideDropdown($el);
}
});
$(selectors.body).on('click.siteNav', function() {
hideDropdown($el);
});
}, 250);
}
function hideDropdown($el) {
// remove aria on open dropdown
$el.find(selectors.siteNavLinkMain).attr('aria-expanded', 'false');
$el.removeClass(config.activeClass);
// reset active dropdown
cache.$activeDropdown = $(selectors.siteNavActiveDropdown);
$(selectors.body).off('click.siteNav');
$(window).off('keyup.siteNav');
}
function unload() {
$(window).off('.siteNav');
cache.$parents.off('.siteNav');
cache.$subMenuLinks.off('.siteNav');
cache.$topLevel.off('.siteNav');
$(selectors.siteNavChildLink).off('.siteNav');
$(selectors.body).off('.siteNav');
}
return {
init: init,
unload: unload
};
})();
Any help would be greatly appreciated. I feel so silly asking a simple question like this. I just can't figure out where to put :hover in the code. It seems pretty strait forward but I can't get it. You can see the site here: AlexandIvy.myShopify.com and the password to view it is staysk. I'm just talking about the top navigation menus.
This is the code from the console:
<nav class="grid__item medium-up--one-half small--hide" id="AccessibleNav" role="navigation">
<ul class="site-nav list--inline " id="SiteNav">
<li class="site-nav--has-dropdown">
<a href="/collections/bedding" class="site-nav__link site-nav__link--main" aria-has-popup="true" aria-expanded="false" aria-controls="SiteNavLabel-bedding">
Bedding
<svg aria-hidden="true" focusable="false" role="presentation" class="icon icon--wide icon-chevron-down" viewBox="0 0 498.98 284.49"><defs><style>.cls-1{fill:#231f20}</style></defs><path class="cls-1" d="M80.93 271.76A35 35 0 0 1 140.68 247l189.74 189.75L520.16 247a35 35 0 1 1 49.5 49.5L355.17 511a35 35 0 0 1-49.5 0L91.18 296.5a34.89 34.89 0 0 1-10.25-24.74z" transform="translate(-80.93 -236.76)"></path></svg>
<span class="visually-hidden">expand</span>
</a>
<div class="site-nav__dropdown" id="SiteNavLabel-bedding">
<ul>
<li>
Sheet Sets
</li>
</ul>
</div>
</li>

Since you're using JS to hide/show the dropdowns, I suggest you do this if you're comfortable with JQuery.
$('.site-nav--has-dropdown').hover(function() {
if ($(this).hasClass('activated')){
$(this).removeClass('activated');
$(this).children('.site-nav__dropdown').css('display', 'none');
}
else{
$(this).addClass('activated');
$(this).children('.site-nav__dropdown').css('display', 'block');
}
});
The idea behind this is that the child closest to .site-nav--has-dropdown which has a class name .site-nav__dropdown can be activated on hover. You can use pol's code too which provides a different (and shorter) approach.

You should use mouseover/mouseout methods in jquery.
$('.site-nav--has-dropdown').mouseover(function() {
$(this).children('.site-nav__dropdown').show();
});
$('.site-nav--has-dropdown').mouseout(function() {
$(this).children('.site-nav__dropdown').hide();
});
Or just use css :hover,
to better support touch devices you should add :focus too.
.site-nav--has-dropdown:hover .site-nav__dropdown,
.site-nav--has-dropdown:focus .site-nav__dropdown {
display: block;
}
jsfiddle demo: sfiddle.net/8p33qh9h

How to toggle (hide / show) sidebar div using jQuery

I have 2 <div>s with ids A and B. div A has a fixed width, which is taken as a sidebar.
The layout looks like diagram below:
The styling is like below:
html, body {
margin: 0;
padding: 0;
border: 0;
}
#A, #B {
position: absolute;
}
#A {
top: 0px;
width: 200px;
bottom: 0px;
}
#B {
top: 0px;
left: 200px;
right: 0;
bottom: 0px;
}
I have <a id="toggle">toggle</a> which acts as a toggle button. On the toggle button click, the sidebar may hide to the left and div B should stretch to fill the empty space. On second click, the sidebar may reappear to the previous position and div B should shrink back to the previous width.
How can I get this done using jQuery?

$('button').toggle(
function() {
$('#B').css('left', '0')
}, function() {
$('#B').css('left', '200px')
})
Check working example at http://jsfiddle.net/hThGb/1/
You can also see any animated version at http://jsfiddle.net/hThGb/2/

See this fiddle for a preview and check the documentation for jquerys toggle and animate methods.
$('#toggle').toggle(function(){
$('#A').animate({width:0});
$('#B').animate({left:0});
},function(){
$('#A').animate({width:200});
$('#B').animate({left:200});
});
Basically you animate on the properties that sets the layout.
A more advanced version:
$('#toggle').toggle(function(){
$('#A').stop(true).animate({width:0});
$('#B').stop(true).animate({left:0});
},function(){
$('#A').stop(true).animate({width:200});
$('#B').stop(true).animate({left:200});
})
This stops the previous animation, clears animation queue and begins the new animation.

You can visit w3school for the solution on this the link is here and there is another example also available that might surely help,
Take a look

The following will work with new versions of jQuery.
$(window).on('load', function(){
var toggle = false;
$('button').click(function() {
toggle = !toggle;
if(toggle){
$('#B').animate({left: 0});
}
else{
$('#B').animate({left: 200});
}
});
});

Using Javascript
var side = document.querySelector("#side");
var main = document.querySelector("#main");
var togg = document.querySelector("#toogle");
var width = window.innerWidth;
window.document.addEventListener("click", function() {
if (side.clientWidth == 0) {
// alert(side.clientWidth);
side.style.width = "200px";
main.style.marginLeft = "200px";
main.style.width = (width - 200) + "px";
togg.innerHTML = "Min";
} else {
// alert(side.clientWidth);
side.style.width = "0";
main.style.marginLeft = "0";
main.style.width = width + "px";
togg.innerHTML = "Max";
}
}, false);
button {
width: 100px;
position: relative;
display: block;
}
div {
position: absolute;
left: 0;
border: 3px solid #73AD21;
display: inline-block;
transition: 0.5s;
}
#side {
left: 0;
width: 0px;
background-color: red;
}
#main {
width: 100%;
background-color: white;
}
<button id="toogle">Max</button>
<div id="side">Sidebar</div>
<div id="main">Main</div>

$('#toggle').click(function() {
$('#B').toggleClass('extended-panel');
$('#A').toggle(/** specify a time here for an animation */);
});
and in the CSS:
.extended-panel {
left: 0px !important;
}

$(document).ready(function () {
$(".trigger").click(function () {
$("#sidebar").toggle("fast");
$("#sidebar").toggleClass("active");
return false;
});
});
<div>
<a class="trigger" href="#">
<img id="icon-menu" alt='menu' height='50' src="Images/Push Pin.png" width='50' />
</a>
</div>
<div id="sidebar">
</div>
Instead #sidebar give the id of ur div.

This help to hide and show the sidebar, and the content take place of the empty space left by the sidebar.
<div id="A">Sidebar</div>
<div id="B"><button>toggle</button>
Content here: Bla, bla, bla
</div>
//Toggle Hide/Show sidebar slowy
$(document).ready(function(){
$('#B').click(function(e) {
e.preventDefault();
$('#A').toggle('slow');
$('#B').toggleClass('extended-panel');
});
});
html, body {
margin: 0;
padding: 0;
border: 0;
}
#A, #B {
position: absolute;
}
#A {
top: 0px;
width: 200px;
bottom: 0px;
background:orange;
}
#B {
top: 0px;
left: 200px;
right: 0;
bottom: 0px;
background:green;
}
/* makes the content take place of the SIDEBAR
which is empty when is hided */
.extended-panel {
left: 0px !important;
}