Calculate how many slides - javascript

I want to calculate how many slides in a slideshow.
in JS:
var slides = $('document.getElementById("slide").getAttribute("data-slide").slide-new');
And in My HTML
<div class="slide" id="slide1" data-slide="0" data-stellar-background-ratio="0.5">
<div id="slideshow" >
<div class="slide-new">Some Text</div>
<div class="slide-new">Some Text</div>
<div class="slide-new">Some Text</div>
</div>
</div>
<div class="slide" id="slide1" data-slide="1" data-stellar-background-ratio="0.5">
<div id="slideshow" >
<div class="slide-new">Some Text</div>
<div class="slide-new">Some Text</div>
<div class="slide-new">Some Text</div>
<div class="slide-new">Some Text</div>
</div>
</div>
I want to calculate How Many "Slide-new" there is "slide" variable.
In 'slides' variable I want 3 for first slideshow and 4 for second slideshow. But I can't get it...
Thanks

try this code
$('.slide').each(function(){
var slides = $(this).find('.slide-new').length
alert(slides);
});
Note: don't use same id more than one time in a page.

Assign class name to get the count of the class
$(document).ready(function() {
var slideCount = $('[data-slide]').length;
for (i = 1; i <= slideCount; i++) {
var t = $('#slide' + i + ' #slideshow').children().attr('class');
$("#text" + i).html(i + 'st Slide has' + $("." + t).length + 'slides' + '<br/>');
}
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
HTML:
<div class="slide" id="slide1" data-slide="0" data-stellar-background-ratio="0.5">
<div id="slideshow">
<div class="slide-new">Some Text</div>
<div class="slide-new">Some Text</div>
<div class="slide-new">Some Text</div>
</div>
</div>
<div class="slide" id="slide2" data-slide="1" data-stellar-background-ratio="0.5">
<div id="slideshow">
<div class="slide-new1">Some Text</div>
<div class="slide-new1">Some Text</div>
<div class="slide-new1">Some Text</div>
<div class="slide-new1">Some Text</div>
</div>
</div>
<span id="text1"></span>
<span id="text2"></span>
Click here
Here is the update:
Update

Related

Reset Image Gallery Count When Loading New Article Content

I have a lots of articles that have 1, 2, 3 or 4 pictures. On mobile I created a carousel. All images all on the same line and I have a count that is 0. And when I press on the right button(for example) that count it will be -100 and all images will have a left: -100 and so on. The problem is that, let's say, I press on the button from one article that count will be -100. but after I go to another article and if I press again the count is not -100 and is -200. How can I reset that count when I change the article. The code is something like:
var c = 0;
$('.plus').on('click', function(){
c += 100
$(this).siblings('.num').text(c)
})
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div class="article">
<div class="minus">Minu</div>
<div class="plus">Plus
</div><div class="num">0</div>
</div>
<div class="article">
<div class="minus">Minu2</div>
<div class="plus">Plus2
</div><div class="num">0</div>
</div>
<div class="article">
<div class="minus">Minu3</div>
<div class="plus">Plus3
</div><div class="num">0</div>
</div>
<div class="article">
<div class="minus">Minu4</div>
<div class="plus">Plus4
</div><div class="num">0</div>
</div>
<div class="article">
<div class="minus">Minu5</div>
<div class="plus">Plus5
</div><div class="num">0</div>
</div>
Here's what I cooked up for you.
$('.plus').on('click', function(){
c = Number($(this).siblings('.num').text()) + 100;
$(this).siblings('.num').text(c)
});
$('.minus').on('click', function(){
c = Number($(this).siblings('.num').text()) - 100;
$(this).siblings('.num').text(c)
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div class="article">
<div class="minus">Minu</div>
<div class="plus">Plus</div>
<div class="num">0</div>
</div>
<div class="article">
<div class="minus">Minu2</div>
<div class="plus">Plus2</div>
<div class="num">0</div>
</div>
<div class="article">
<div class="minus">Minu3</div>
<div class="plus">Plus3</div>
<div class="num">0</div>
</div>
<div class="article">
<div class="minus">Minu4</div>
<div class="plus">Plus4</div>
<div class="num">0</div>
</div>
<div class="article">
<div class="minus">Minu5</div>
<div class="plus">Plus5</div>
<div class="num">0</div>
</div>
The Plus button will add to the total displayed for the current article and Minus will subtract from it. Every article has it's own c value that can't be changed by a button from a different article.
I hope that's what you are looking for.
Add an on('click', function() {...}) handler to your "change the article" button. If this button is just another article's text, then give them all a common class and a common class onclick handler.
HTML...
<span class="article">Article 1</span>
<span class="article">Article 2</span>
<span class="article">Article 3</span>
jQuery...
$('.article').on('click', function() {
c = 0;
});

Replace Onclick prameters with a part of img src path

Hi I am new to the world of Greasemonkey and JavaScript..
I want to replace every onclick function with a part of its related img src link
the source looks like this:
<div id="playlist_container">
<div id="video_container" onclick="playvid('a1a1a1a1a1',3201)" class="playing">
<div id="thumbnail">
<img src="https://.../thumb/ABCD.jpg">
</div>
<div id="title"></div>
<div id="synopsis">
Vid 1 </div>
</div>
<hr>
<div id="video_container" onclick="playvid('b2b2b2b2bb2',3202)" >
<div id="thumbnail">
<img src="https://.../thumb/EFGH.jpg">
</div>
<div id="title"></div>
<div id="synopsis">
Vid 2 </div>
</div>
i want to replace the onclick 'playvid' a1a1a1a1a1 & b2b2b2b2bb2 & c3c3c3c3c3c3 ... with part of img src link
to become like this:
<div id="playlist_container">
<div id="video_container" onclick="playvid('ABCD',3201)" class="playing">
<div id="thumbnail">
<img src="https://.../thumb/ABCD.jpg">
</div>
<div id="title"></div>
<div id="synopsis">
Vid 1 </div>
</div>
<hr>
<div id="video_container" onclick="playvid('EFGH',3202)" >
<div id="thumbnail">
<img src="https://.../thumb/EFGH.jpg">
</div>
<div id="title"></div>
<div id="synopsis">
Vid 2 </div>
</div>
Here's what i've tried so far:
var els = $("#playlist_container");
var cod = $("div#thumbnail img").prop("src").replace(/(https(.+)\/thumb\/|.jpg)/gi, '');
for(var i=0;i<els.length;i++){
var el = els[i];
el.innerHTML = el.innerHTML.replace(/playvid(.)(.)(\w+)(.)/gi, "playvideo('" + cod +"'");
}
this works for me but the issue is that it puts the first cod 'ABCD' to all the following 'playvid()' functions as shown below:
<div id="playlist_container">
<div id="video_container" onclick="playvid('ABCD',3201)" class="playing">
<div id="thumbnail">
<img src="https://.../thumb/ABCD.jpg">
</div>
<div id="title"></div>
<div id="synopsis">
Vid 1 </div>
</div>
<hr>
<div id="video_container" onclick="playvid('ABCD',3202)" >
<div id="thumbnail">
<img src="https://.../thumb/EFGH.jpg">
</div>
<div id="title"></div>
<div id="synopsis">
Vid 2 </div>
</div>
another issue is when i try $("#video_container") it doesnt work i dont know why, I'm very confused and can't find anything on it
Your html has duplicate ID values which can cause issues when finding the correct element. Try using class if you want to target multiple elements.
This code only gets the first element value
var cod = $("div#thumbnail img").prop("src").replace(/(https(.+)\/thumb\/|.jpg)/gi, '');
Try this code and let me know how it goes
var images = $("div.thumbnail img");
images.each(function(img) {
var name = $(this).prop("src").replace(/(https(.+)\/thumb\/|.jpg)/gi, '');
var container = this.closest("div.video_container");
var evt = $(container).attr("onclick").replace(/playvid(.)(.)(\w+)(.)/gi, "playvideo('" + name +"'");
$(container).attr("onclick", evt);
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div id="playlist_container">
<div class="video_container" onclick="playvid('a1a1a1a1a1',3201)" class="playing">
<div class="thumbnail">
<img src="https://.../thumb/ABCD.jpg">
</div>
<div class="title"></div>
<div class="synopsis">Vid 1</div>
</div>
<hr>
<div class="video_container" onclick="playvid('b2b2b2b2bb2',3202)" >
<div class="thumbnail">
<img src="https://.../thumb/EFGH.jpg">
</div>
<div class="title"></div>
<div class="synopsis">Vid 2</div>
</div>

JavaScript Fade In Not Working Correctly - 2 of 4 divs fade in correctly

I just need each div to fade in once, doesn't need to fade out. Only .landing and .about fade in. .images and .contact don't fade in at all, but I can still click the invisible button on the .images div. If you need my CSS for the ids, please let me know. I'm still a JavaScript beginner, so this could be an easy fix.
<div class="landing">
<div class="content" id="fadein"> <!-- "fadein" is for my onload function -->
<div class="header">
<h1 style="margin: 0;">Placeholder</h1>
<h4 style="margin: 0;">Placeholder</h4>
</div>
<div class="down">
<a href="#about">
<img src="down.png">
</a>
</div>
</div>
</div>
<a id="about"></a>
<div class="wrapper">
<div class="content" id="fadeinclick">
<h3 style="margin: 0;">Placeholder</h3>
<h3 style="margin: 0;">Placeholder</h3>
<h3 style="margin: 0;">Placeholder</h3>
<h3 style="margin: 0;">Placeholder</h3>
<div class="down">
<a href="#images">
<img src="down.png">
</a>
</div>
</div>
</div>
<a id="images"></a>
<div class="wrapper">
<div class="content" id="fadeinclick"> <!-- first div that won't fade in -->
<h3>Images</h3>
<div class="activity">
<img src="placeholder.png"></img>
<img src="placeholder.png"></img>
<img src="placeholder.png"></img>
</div>
<div class="down">
<a href="#contact">
<img src="down.png">
</a>
</div>
</div>
</div>
<a id="contact"></a>
<div class="wrapper">
<div class="content" id="fadeinclick"> <!-- second div that won't fade in -->
<h3>Contact</h3>
<div class="activity">
<img src="placeholder.png"></img>
<img src="placeholder.png"></img>
<img src="placeholder.png"></img>
</div>
</div>
</div>
<!-- Fade scripts -->
<script>
window.onload = function() {
document.getElementById("fadein").style.opacity = 1;
}
</script>
<script>
window.onclick = function() {
document.getElementById("fadeinclick").style.opacity = 1;
}
</script>
opacity isn't a child of style, but rather a property. Just do
elem.style = "opacity:100%"
But keep in mind it won't fade. My advice?
var fade = 0
var elem = document.getElementById('imageId')
rate = 1
function step() {
fade = fade + 1
}
function start() {
if (fade < 100) {
step()
setInterval(function() {start}, rate)
};
};

Traverse siblings to find next and previous div with jQuery

I need to search through multiple siblings to add a class the next and previous divs. Right now, the class is being added to the next div but only the next div if it's a sibling. Here is my HTML:
jQuery('.next').click(function() {
var newImg = jQuery('.currentimg').next('.thumbnail').css('background-image');
newImg = newImg.replace('url(','').replace(')','').replace(/\"/gi, "");
var oldImg = jQuery('.currentimg');
jQuery(oldImg).next('.thumbnail').addClass('currentimg');
jQuery(oldImg).removeClass('currentimg');
jQuery('.featured-image').html('<img src="'+newImg+'"><div class="button prev"><span><</span><span><</span></div><div class="button next"><span>></span><span>></span></div>');
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="wrap">
<div class="thumbnail currentimg">1</div>
<div class="thumbnail">2</div>
</div>
<div class="wrap">
<div class="thumbnail">3</div>
<div class="thumbnail">4</div>
</div>
<div class="wrap">
<div class="thumbnail">5</div>
<div class="thumbnail">6</div>
</div>
<div class="wrap">
<div class="thumbnail">7</div>
<div class="thumbnail">8</div>
</div>
<div class="next">next</div>
<div class="previous">prev</div>
Possibly something like this. It should let you find next regardless if they are siblings or not. Added a background color to easy see which one is current.
var allThumbnails = $('.thumbnail');
$('.next').click(function() {
var currentImg = allThumbnails.filter('.currentimg');
var nextIndex = (allThumbnails.index(currentImg) + 1) % allThumbnails.length;
var nextImg = allThumbnails.eq(nextIndex);
var newImg = nextImg.css('background-image').replace('url(', '').replace(')', '').replace(/\"/gi, "");
currentImg.removeClass('currentimg');
nextImg.addClass('currentimg');
$('.featured-image').html('<img src="' + newImg + '"><div class="button prev"><span><</span><span><</span></div><div class="button next"><span>></span><span>></span></div>');
});
.currentimg {
background-color: red;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="wrap">
<div class="thumbnail currentimg">1</div>
<div class="thumbnail">2</div>
</div>
<div class="wrap">
<div class="thumbnail">3</div>
<div class="thumbnail">4</div>
</div>
<div class="wrap">
<div class="thumbnail">5</div>
<div class="thumbnail">6</div>
</div>
<div class="wrap">
<div class="thumbnail">7</div>
<div class="thumbnail">8</div>
</div>
<div class="next">next</div>
<div class="previous">prev</div>

How to show hidden content according to clicked value jquery?

sorry for the midunderstanding. I meant index, not value. Sorry.
I am wondering if there is a way to use the value of the shown content ".wbox" of this jsfiddle example to coincide with the hidden value, that when clicked will show the hidden content?
For example, When Cont 1 is clicked, hidden box 1 shows. When Cont2 is clicked, hidden box 2 shows... and so forth.
Here is my fiddle: http://jsfiddle.net/kqbLtn8b/1/
HTML:
<div class="box">
<div class="content one">
<h1>Cont 1</h1>
</div>
<div class="content two">
<h1>Cont 2</h1>
</div>
<div class="content three">
<h1>Cont 3</h1>
</div>
</div>
<div class="hidden-content">
<div class="hidden-box b-one">one</div>
<div class="hidden-box b-two">two</div>
<div class="hidden-box b-three">three</div>
</div>
jquery:
var boxVal = $('.box').val();
Thanks for any help!
What I am really trying to do is shorten the code from something like this:
$('.one').on('click', function(){
$('.b-one').show()
});
and so forth with the rest
Try this : use index of content div to show hidden-box
$(function(){
$('.content').click(function(){
var index = $(this).index();
$('.hidden-content .hidden-box:eq('+index+')').show();
});
});
And make change in your css, instead of hiding hidden-content div you need to hide hidden-box. So change your
.hidden-content{
display:none;
}
to
.hidden-box{
display:none;
}
Demo
If you want to stick to the current HTML you have, it is going to be cumbersome and dirty since there are 2 ways to handle that scenario.
Translate a string like "Cont 1" into "one", "Cont 2" into "two". It's all well and good till nine but what about 100 -> hundred? Or even thousand?
The other approach is instead of naming your hidden boxes as "b-one", "b-two", you can name them "b-1", "b-2", "b-3". That way you can just detect the clicked element and then wipe of the "Cont " part and then use the remainder of the string to get the hidden part's class.
Both the above cases will still give you a very very dirty code since you have to get the .html() of the clicked element and stip of h1 tags.
So my suggestion would be to follow the below method.
HTML:
<div class="box">
<div class="content one" rel="1">
<h1>Cont 1</h1>
</div>
<div class="content two" rel="2">
<h1>Cont 2</h1>
</div>
<div class="content three" rel="3">
<h1>Cont 3</h1>
</div>
</div>
<div class="hidden-content">
<div class="hidden-box b-1">one</div>
<div class="hidden-box b-2">two</div>
<div class="hidden-box b-2">three</div>
</div>
JS:
$('.content').on('click', function(){
var divNum = this.rel;
$('.b-'+divNum).show();
});
I recommend restructuring your HTML in the following way:
<div class="box">
<div class="content" id= "c1">
<h1>Cont 1</h1>
</div>
<div class="content" id= "c2">
<h1>Cont 2</h1>
</div>
<div class="content" id= "c3">
<h1>Cont 3</h1>
</div>
<div class="hidden-content">
<div class="hidden-box" id= "h1">one</div>
<div class="hidden-box" id= "h2">two</div>
<div class="hidden-box" id= "h3">three</div>
then use this as your jquery code:
$('.content').click(function(){
var num = $(this).attr('id').split("c")[1];
$("#h"+num).show();
});
and by the way, change your css too:
.hidden-content{
/* display:none;*/
}
.hidden-box{
width:35px;
height:35px;
border:1px solid black;
display:none;
}
This is another way (although not so reliable, as it would break if you change your classes):
$(function () {
$('.content').on('click', function () {
var className = $(this).attr('class').replace('content', '').trim();
$('.hidden-box').hide();
$('.b-' + className).show();
});
});
.hidden-box {
display: none;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="box">
<div class="content one">
<h1>Cont 1</h1>
</div>
<div class="content two">
<h1>Cont 2</h1>
</div>
<div class="content three">
<h1>Cont 3</h1>
</div>
</div>
<div class="hidden-content">
<div class="hidden-box b-one">one</div>
<div class="hidden-box b-two">two</div>
<div class="hidden-box b-three">three</div>
</div>
UPDATE
Based on #Regent comment which I agree to, this would be a more reliable way because it will work even if you change your markup.
You just need to add a data attribute to your markup that will be used to match elements:
$(function () {
$('.content').on('click', function () {
var sel = $(this).data('rel');
$('.hidden-box').each(function () {
$(this).toggle($(this).data('rel') == sel);
});
});
});
.hidden-box {
display: none;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.0/jquery.min.js"></script>
<div class="box">
<div class="content one" data-rel="1">
<h1>Cont 1</h1>
</div>
<div class="content two" data-rel="2">
<h1>Cont 2</h1>
</div>
<div class="content three" data-rel="3">
<h1>Cont 3</h1>
</div>
</div>
<div class="hidden-content">
<div class="hidden-box b-one" data-rel="1">one</div>
<div class="hidden-box b-two" data-rel="2">two</div>
<div class="hidden-box b-three" data-rel="3">three</div>
</div>

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