Develop Reference

How to check the continue classes in set?

I have 10 items in a list with this kind of structure where any item can have active class depending on some situations and this active class will add on item when user click on it. I want to get the number of set of 3 continue active classes. in the given example the 3 continue active classes are 2 times on items 4,5,6 and 8,9,10.
So the output should be 2 only.
How to achieve this.
I know I can get the total number of Active classes just by getting its length, but how to get if its how many times in continuity?
$(document).ready(function(){
let totalActivce = $('.active').length;
console.log(totalActivce);
});
.active {color: red;}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<ul>
<li class="active">item1 </li>
<li>item2 </li>
<li>item3 </li>
<li class="active">item4 </li>
<li class="active">item5 </li>
<li class="active">item6 </li>
<li>item7 </li>
<li class="active">item8 </li>
<li class="active">item9 </li>
<li class="active">item10 </li>
</ul>

If you want to count the elements between your first element with the class active and the next you can use $('.active:first').nextUntil(".active")
Demo
$(document).ready(function() {
let totalActivce = $('.active:first').nextUntil(".active").length;
console.log(totalActivce);
});
.active {
color: red;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<ul>
<li class="active">item1 </li>
<li>item2 </li>
<li>item3 </li>
<li class="active">item4 </li>
<li class="active">item5 </li>
<li class="active">item6 </li>
<li>item7 </li>
<li class="active">item8 </li>
<li class="active">item9 </li>
<li class="active">item10 </li>
</ul>
Demo 2
$(document).ready(function() {
var f = 0;
$("ul li").each(function() {
if ($(this).is(".active") && $(this).nextUntil(':not(.active)').addBack().length == 3) {
f++;
}
});
console.log(f);
});
.active {
color: red;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<ul>
<li class="active">item1 </li>
<li>item2 </li>
<li>item3 </li>
<li class="active">item4 </li>
<li class="active">item5 </li>
<li class="active">item6 </li>
<li>item7 </li>
<li class="active">item8 </li>
<li class="active">item9 </li>
<li class="active">item10 </li>
</ul>
Demo 3
$(document).ready(function() {
var f = 0;
var s = 1;
$("ul li").each(function(i) {
if (s <= i) {
if ($(this).is(".active") && $(this).nextUntil(':not(.active)').addBack().length >= 3) {
s = s + 3;
f++;
}
}
});
console.log(f);
});
.active {
color: red;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<ul>
<li>item1 </li>
<li class="active">item2 </li>
<li class="active">item3 </li>
<li class="active">item4 </li>
<li class="active">item5 </li>
<li class="active">item6 </li>
<li class="active">item7 </li>
<li class="active">item8 </li>
<li class="active">item9 </li>
<li class="active">item10 </li>
</ul>

You can loop your elements and check if previous elements where active:
$(document).ready(function() {
let totalActivce = $('.active').length;
let sets = 0;
let isPreviousActive = 0;
console.log(totalActivce);
$('ul li').each(function() {
let isActive = $(this).is('.active');
if (isActive) {
isPreviousActive++;
if (isPreviousActive == 2) {
sets++;
}
}
if (!isActive) {
isPreviousActive = 0;
}
});
console.log(sets);
});
.active {
color: red;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<ul>
<li class="active">item1 </li>
<li>item2 </li>
<li>item3 </li>
<li class="active">item4 </li>
<li class="active">item5 </li>
<li class="active">item6 </li>
<li>item7 </li>
<li class="active">item8 </li>
<li class="active">item9 </li>
<li class="active">item10 </li>
</ul>

jquery menu with slide from left for sub menus

I wanted to slide sub menus from left or right if i click on li.menu-items for each item of a menu which have sub menus. here is my html markup
<ul class="menu">
<ul>
<li class="menu-item">
<a href="#">item 1
</a>
<ul class="sub-menu">
<li class="menu-item">
item 2
</li>
<li class="menu-item">
<ul class="sub-menu">
<li><a href="">item 1</li></li>
<li><a href="">item 1</li></li>
</ul>
</li>
</ul>
</li>
<li class="menu-item">
item 4
<ul class="sub-menu">
<li class="menu-item">
item5
</li>
<li class="menu-item">
item 6
</li>
</ul>
</li>
<li class="menu-item">item 7</li>
<li class="menu-item">item 8</li>
</ul>
</ul>
if I click on menu item which have sub-menu then the sub menu will open from slide left or right and other menu items should be hide and a back button should be there at top left to back on main menu
here is my js
$('.menu-item').click(function(e){
if ($('.sub-menu', this).length >=1) {
e.preventDefault();
}
$(this).siblings().find('> .sub-menu').hide();
$(this).find('> .sub-menu').slideLeft();
e.stopPropagation();
});
please help me for this

I don't think is there any function in jQuery like slideLeft as far as I know. although you can do it with jQuery UI with a little trick like this.
$(this).show("slide", { direction: "left" }, 1000);
but I will prefer a custom CSS example based on jQuery classes.
check below code example. if you need anything else. please let me know.
and yes you also did a small mistake: you are having a UL direct child of your Menu UL, Ul can only have LI as a direct child, Correct it and pls close all the tags properly.
$('.menu-item').click(function(e) {
if ($('.sub-menu', this).length >= 1) {
e.preventDefault();
}
debugger;
$(this).siblings().find('> .sub-menu').removeClass('open');
$(this).find('> .sub-menu').addClass("open");
e.stopPropagation();
});
$('.back').click(function(e){
$(this).closest('.sub-menu').removeClass('open');
e.stopPropagation();
})
.menu {
background: #cccccc;
position: relative;
}
* {padding :0; margin: 0; box-sizing: border-box;}
.sub-menu {
display: block;
position: absolute;
height: auto;
width: 100%;
left: -100%;
transition: all 0.5s;
top: 0%;
}
.sub-menu.open {
left: 0;
background: #666;
}
.back {cursor: pointer; margin-bottom: 20px;}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<ul class="menu">
<li class="menu-item">
item 1
<ul class="sub-menu">
<li class="back">back</li>
<li class="menu-item">
item 2
</li>
<li class="menu-item">
<ul class="sub-menu">
<li class="back">back</li>
<li>item 1</li>
<li>item 1</li>
</ul>
</li>
</ul>
</li>
<li class="menu-item">
item 4
<ul class="sub-menu">
<li class="back">back</li>
<li class="menu-item">
item5
</li>
<li class="menu-item">
item 6
</li>
</ul>
</li>
<li class="menu-item">item 7</li>
<li class="menu-item">item 8</li>
</ul>

My code is not jQuery but I hope it works for you.
var x = document.getElementsByClassName('menu');
var y = x[0].getElementsByTagName('a');
for (let i = 0; i < y.length; i++) {
y[i].addEventListener("click", function () {
var z = this.nextElementSibling;
if(z){
var s = z.getAttribute('style');
if(s === 'display:none;') {
z.setAttribute('style', 'display:block;')
} else {
z.setAttribute('style', 'display:none;')
}
}
});
}
<ul class="menu">
<ul>
<li class="menu-item">
item 1
<ul class="sub-menu">
<li class="menu-item">
item 2
</li>
<li class="menu-item">
item 3
<ul class="sub-menu">
<li class="menu-item">
item 4
</li>
<li class="menu-item">
item 5
</li>
</ul>
</li>
<li class="menu-item">
item 6
</li>
</ul>
</li>
</ul>
</ul>

How do I open sub menu on click on span?

Here are the two scripts I am using
First one adds arrow after .a that has sub-menu, .has children
jQuery(function($) {
$('a + ul').prev('a').append('<span class="sub-menu-open">&#9660</span>');
});
This second opens sub-menu, but on menu a click.
jQuery(function($) {
$('.sub-menu').hide(); //Hide children by default
$('.menu').children('').click(function(){
event.preventDefault();
$(this).children('.sub-menu').slideToggle('slow');
});
});
this is html code.
<ul id="menu-izb" class="menu">
<li id="menu-item" class="bp-menu ">
Activity
</li>
<li id="menu-item" class="bp-menu">
Log Out
</li>
<li id="menu-item" class="menu-item"><a href="/">Blog
<span class="sub-menu-open">▼</span>
</a>
<ul class="sub-menu" style="">
...
How do I make sub-menu toggles onclick on <span class="sub-menu-open">▼</span>?

I don't know what your JS-Code is doing. But here is a solution for "opening sub menu on click on span":
<ul id="menu-izb" class="menu">
<li id="menu-item" class="bp-menu ">
Activity
</li>
<li id="menu-item" class="bp-menu">
Log Out
</li>
<li id="menu-item" class="menu-item has-children"><a href="">Blog
<span class="sub-menu-open">▼</span></a>
<ul class="sub-menu" style="">
<li id="menu-item" class="menu-item">
Bla1
</li>
<li id="menu-item" class="menu-item">
Bla2
</li>
<li id="menu-item" class="menu-item">
Bla3
</li>
</ul>
</li>
</ul>
<script>
jQuery(function($) {
$('.sub-menu').hide();
$('.sub-menu-open').parent().click(function(e){
e.preventDefault();
$(this).parent().find(".sub-menu").toggle();
});
});
</script>
Here is a working Fiddle:
https://jsfiddle.net/ehg49dso/9/

jQuery switching lists with same class

I created a bit complex list and I wish after clicking on element with class ".recipes", display it inside paragraph but after clicking on button prev or next, I wish to switch to previous or next element with same class name. I know already how to switch the list if they are next to each other but after putting them inside different parents it seems more complicated:
<div>
<button class="prev">prev</button>
<button class="next">next</button>
<p class="showRecipies"></p>
<ul class="listOfRecipies">
<li>
<ul class="particularRecipie">
<li class="timeOfPreparation">3:20</li>
<li class="recipies">Drinks</li>
</ul>
</li>
<li>
<ul class="particularRecipie">
<li class="timeOfPreparation">3:20</li>
<li class="recipies">Vegetables</li>
</ul>
</li>
<li>
<ul class="particularRecipie">
<li class="timeOfPreparation">3:20</li>
<li class="recipies">Meat</li>
</ul>
</li>
<li>
<ul class="particularRecipie">
<li class="timeOfPreparation">3:20</li>
<li class="recipies">Fruits</li>
</ul>
</li>
<li>
<ul class="particularRecipie">
<li class="timeOfPreparation">3:20</li>
<li class="recipies">Others</li>
</ul>
</li>
</ul>
</div>
To show clicked element:
$(".recipies").on("click", function() {
$(".recipies.active").add($(this)).toggleClass("active");
var recipieValue = $(this).text();
var showRecipies = document.querySelector(".showRecipies");
showRecipies.innerHTML = recipieValue;
});
and to show previous element with class "recipes" I got from another person on this forum is here however because classes have different parents now, it doesn't work, I thought that i can add more parents() and because of that find previous or next ".recipes" but it didn't work out:
$(".prev").click(function() {
var isFirst = $(".recipies.active").is(":first-child");
if(isFirst){
$(this).parent().find(".recipies:last").trigger("click");
} else {
$(".recipies.active").prev().trigger("click");
}
});

Check this out:
$(".recipies").on("click", function() {
$(".recipies.active").add($(this)).toggleClass("active");
var recipieValue = $(this).text();
var showRecipies = document.querySelector(".showRecipies");
showRecipies.innerHTML = recipieValue;
});
$(".prev").click(function() {
var isFirst = $(".recipies.active").text() == $($(".recipies").get(0)).text();
if (isFirst) {
$(this).parent().find(".recipies:last").trigger("click");
} else {
$(".recipies.active").parent().parent().prev().find(".recipies").trigger("click");
}
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<div>
<button class="prev">prev</button>
<button class="next">next</button>
<p class="showRecipies"></p>
<ul class="listOfRecipies">
<li>
<ul class="particularRecipie">
<li class="timeOfPreparation">3:20</li>
<li class="recipies">Drinks</li>
</ul>
</li>
<li>
<ul class="particularRecipie">
<li class="timeOfPreparation">3:20</li>
<li class="recipies">Vegetables</li>
</ul>
</li>
<li>
<ul class="particularRecipie">
<li class="timeOfPreparation">3:20</li>
<li class="recipies">Meat</li>
</ul>
</li>
<li>
<ul class="particularRecipie">
<li class="timeOfPreparation">3:20</li>
<li class="recipies">Fruits</li>
</ul>
</li>
<li>
<ul class="particularRecipie">
<li class="timeOfPreparation">3:20</li>
<li class="recipies">Others</li>
</ul>
</li>
</ul>
</div>

make child ul slide-down on page load

My HTML is like this
<div id="cssmenu">
<ul>
<li class="has-sub open ">
<a href="/rigging.aspx " > rig </a>
<ul>
<li class="has-sub ">
rigging
</li>
<li class="has-sub ">
rig-3
</li>
</ul>
</li>
</ul>
on page load if any <li> has class open I want its child <ul> element to be slide down. I have written something like this
$(document).ready(function () {
if ($('#cssmenu li').hasClass('open')) {
$(this).children('ul').slideDown();
}
}
But its not working (slide down not happens) can any one point out what I am missing here?

This selects all ul children of li which have the class .open and applies slideDown.
$('#cssmenu li.open > ul').slideDown();
$('li.has-sub > ul').slideDown();
.has-sub > ul {
display: none;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<ul>
<li class="has-sub open ">
rig
<ul>
<li class="has-sub ">
rigging
</li>
<li class="has-sub ">
rig-3
</li>
</ul>
</li>
<li class="has-sub open ">
rig
<ul>
<li class="has-sub ">
rigging
</li>
<li class="has-sub ">
rig-3
</li>
</ul>
</li>
<li class="has-sub">
rig
<ul>
<li class="has-sub ">
rigging
</li>
<li class="has-sub ">
rig-3
</li>
</ul>
</li>
</ul>