Develop Reference

How to detect the ID of a DIV when I scroll

I have three DIV's wit this ID's (#firstCTA, #secondCTA y #thirdCTA) and I need to detect one by one when the user do SCROLL DOWN to change styles or active an animation. I active an ALERT in this example
HTML5 code
<div class="container-fluid" id="firstCTA">
<div class="row">
<div class="col-12 text-center">
<img src="assets/imgs/clic-aqui.png" class="arrow-size">
<h3 class="cta-here-text"><b>Da clic aquí</b></h3>
<br>
</div>
</div>
</div>
JS Code
$(window).scroll(function(){
if ($('#firstCTA').offset().top >= $(window).scrollTop()){
//do something
alert('hey bbay');
}
else{
//do something else
}
});
Really this code dont works because dont detect the ID. The change of styles in the DIV, only be active, when user do SCROLL DOWN and detect the ID.

I suggest you to use some library like waypoints
Where you could do
var waypoint = new Waypoint({
element: document.getElementById('firstCTA'),
handler: function(direction) {
// do your stuff (you can use "this" to refer to the element)
}
})
Or, with jQuery
$('#firstCTA').waypoint(function(direction) {
// do your stuff
}, options)

Child div affects parent div in css and triggers jquery method

I have parent div with class a "very-big-div" that nests another "container-div" that by its turn also nests another child divs. The very big div's made to act like a button and the div that come right after it is a container that appears when I click the very big div.
<div class="very-big">
<div class="container">
<!-- Some other more nested divs that has anchors and buttons -->
<div class="friend-request">
<div class="button-div">
<button class="accept">Trigger</button>
<button class="refuse">Trigger</button>
</div>
</div>
</div>
</div>
The problem is 2 things first: the css problem has not yet been solved
I assigned a hover pseudo class for the "very-big-div", and whenever I hover the "container-div" the hover properties(background-color) is applied to the "very-big-div". This is not what I intend to make, I want to only hover "very-big" div for the hover to apply.
.very-big{
background-color:green;
}
The second problem is : I have a jquery that deals with the container so it is toggled on/off by the "very-big-div"
$(document).ready(function(){
$("#container-div").hide();
$("#very-big-div").click(function(){
$("#container-div").toggle();
});
});
the container has both anchor and button tags whenever I click the an anchor or a button inside the container it is toggled to close itself, and that is not what I want, what I want is just when I only press the "very-big-div" the toggle is activated.

Same as #Jhecht has given the answer, I have just inherited his to mine.
You can stop propagation of the click of child element that trigger toggle by using target and excluding all the child elements of your .very-big container as:
$(".very-big").click(function(e) {
var target = $(e.target);
if (!target.is('.very-big *')) {
$(".container").toggle();
}
});
Code Snippet:
$(document).ready(function() {
$(".container").hide();
$(".very-big").click(function(e) {
var target = $(e.target);
if (!target.is('.very-big *')) {
$(".container").toggle();
}
});
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="very-big">
Other Text
<div class="container">
This is text to fill stuff out so I can click on it.
</div>
</div>

This works for me, but I am not sure if it is what you need.
Please add in the minimum HTML, CSS, and Javascript needed to fully recreate the error you are seeing.
$(document).ready(function() {
$(".container").hide();
$(".very-big").click(function(e) {
console.log(e);
var current = $(e.toElement);
if (current.is('.container')) {
e.stopPropagation();
return false;
}
$('.container').toggle();
});
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="very-big">
Other Text
<div class="container">
This is text to fill stuff out so I can click on it.
</div>
</div>

jQuery slideup casuing multiple slides

I'm looking to use jQuery to slide an element down, wait, then slide it back up.
When I use the following code, it slides down fine, but then when sliding back up it seems to slide up and down multiple times.
HTML:
<div id="area">
<div id="summary"><p>hello summary</p></div>
<div id="dropdown">
<div class="item"><p>hello item</p></div>
<div id="functions"><p>hello functions</p></div>
</div>
</div>
<p>TEST ADD</p>
jQuery:
$("document").ready( function () {
$("#test_add").bind("click", add_item_annimate)
})
function add_item_annimate() {
$("#dropdown").slideDown("fast").delay(1500).slideUp("fast");
}
Not really sure why this is happening.

That's probably because of animation queue, for clearing it you can use the stop method:
$("#dropdown").stop(true).slideDown("fast").delay(1500).slideUp("fast");

This code should do the trick!
$("document").ready( function () {
$("#test_add").click( function(){
$("#dropdown").slideUp("fast").delay(1500).slideDown("fast");
//SlideUp and slideDown can be switched.
});
});
Example:
http://jsfiddle.net/xcm8n1s3/

You didn't have anything preventing a user from clicking on "TEST ADD" multiple times before the animation completed.
if ($("#dropdown").is(':animated')) {
return false;
}
$("#dropdown").slideDown("fast").delay(1500).slideUp("fast");
Here is a jsfiddle of the working demo.

Div fade in after other a href Div's are clicked

I'm trying to have a Div fade in after the user clicks two other divs.
This is what I have so far but I'm pretty sure I'm doing something wrong. I can't seem to get the div to fade in even if only one div is clicked let alone two. Any help would be appreciated! thank you so much.
<script>
$(document).ready(function(){
$('#video_overlays').hide();
$('#video_overlays').fadeIn(9000);
$('#video_overlaysanswer').hide();
$('#video_overlaysanswer').fadeIn(18000);
$('#video_overlaysanswer1').hide();
$('#video_overlaysanswer2').hide();
$('#video_overlaysanswer2').fadeIn(18000); });
</script>
<script type="text/javascript">
$(document).ready(function(){
$("video_overlaysanswer").click(function() {
var index = $(this).closest("li").index();
$("video_overlaysanswer1").eq(index).fadeIn("slow");
return false; // prevents navigation to #
});
})
</script>
<div id="video_overlays">
This is where text is
</div>
<div id="video_overlaysanswer">
answer 1
</div>
<div id="video_overlaysanswer2">
answer 2
</div>
<div id="video_overlaysanswer1">
the answer that I want to fade in once the other two div's are clicked
</div>

$(document).ready(function(){
$('#video_overlays').hide();
$('#video_overlays').fadeIn(500);
$('#video_overlaysanswer').hide();
$('#video_overlaysanswer').fadeIn(500);
$('#video_overlaysanswer1').hide();
$('#video_overlaysanswer2').hide();
$('#video_overlaysanswer2').fadeIn(500);
$("#video_overlaysanswer,#video_overlaysanswer2").click(function() {
$("#video_overlaysanswer1").fadeIn("slow");
return false; // prevents navigation to #
});
});
Try code above.It works fine.Now implement different click event fo buttons.hope this helps.
http://jsfiddle.net/szr9vpv5/

How do I make this code work for each click?

I have h3 block's and on click of each of the block I am showing the section associated with it. It is actually something like accordion(hide and collapse). I have also given a drop icon to the h3 tags, means that when the block is opened the h3 should have a dropicon pointing downwards while others h3 should have there dropocons towards right. I am controlling this behaviour using backgroundPosition. I am using the jQuery visible condition to see if the particular block is visible then give its drop icon one background position and to the rest other. It works fine but only for first click. It doesn't work for second click; can somebody explain why? Here is my code:
if($(this).next().is(':visible')) {
$(this).css({'backgroundPosition':'0px 14px'});
}
else {
$("h3").css({'backgroundPosition':'0px -11px'});
}
UPDATED CODE:
$("h3").click(function() {
$(".tabs").hide();
$(this).next().show();
if($(this).next().is(':visible')) {
$(this).css({'backgroundPosition':'0px 14px'});
} else {
$("h3").css({'backgroundPosition':'0px -11px'});
}
})

If you wrap the whole block in a div it might make traversing easier.
Html:
<div class="drop-block">
<h3>Click this</h3>
<ul>
<li>Drop</li>
<li>it</li>
<li>like</li>
<li>it's</li>
<li>hot</li>
</ul>
</div>​
Jquery:
var dropper = $('.drop-block');
$(dropper).find('h3').click(function(){
$(this).toggleClass('active');
$(dropper).find('ul').toggle();
});​
Example

I Belive that you are looking for live
So it will be something like this:
$(element).live('click', function(){
if($(this).next().is(':visible')) {
$(this).css({'backgroundPosition':'0px 14px'});
}
else {
$("h3").css({'backgroundPosition':'0px -11px'});
}
}

Instead of editing the css of them, make a css class "open" (or similar), and then add / remove the class on the click to open / close.
It is much easier to debug by checking for the existence of a class than it is to check the css properties of something in JS.

Better make a class name for each situation and easly handle the action
$('h3').on('click', function(){
if($(this).hasClass('opened')) {
$(this).removeClass('opened');
}
else {
$(this).addClass('opened');
}
}

$(document).on('click', 'h3', function(e) {
$(".tabs").hide('slow');
$(this).css({'backgroundPosition':'0px 14px'});
if(!$(this).next().is(':visible'))
{
$("h3").css({'backgroundPosition':'0px -11px'});
$(this).next().show('slow');
}
});
You can remove 'slow' from show/hide if animation is not required
Here is an example.

It sounds like you need to bind click events to the h3 elements and toggle the visibility of the child elements:
$(function(){
$("h3").click(function(){
$(this).next(".tabs").toggle();
});
});
Example markup:
<h3>Item 1</h3>
<div class="tabs">
<h4>Option 1</h4>
<h4>Option 2</h4>
</div>
<h3>Item 2</h3>
<div class="tabs">
<h4>Option 1</h4>
<h4>Option 2</h4>
</div>
Here's a jsFiddle to demonstrate.