We Keep Coding

hover on dynamically created list

I have a menu with a list of items created dynamically using javascript.
They have different colour and country attributes created using setAttribute.
$("#menuList a").hover(
function() {
var countryName = $(this).attr('country');
var fruitColour = $(this).attr('colour');
$('#toshow').append($("countryName \n fruitColour"));
},
function() {}
);
.toshow {
display: none;
}
#menuList a:hover div.toshow {
top: 0;
right: 0;
display: block;
position: absolute;
z-index: 99999;
background: red;
width: 200px;
height: 100px;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<ul class="menubar" id="menuList">
<li>Watermelon</li>
<li>Grapes</li>
<li>Strawberry</li>
<li>Blueberry</li>
</ul>
<div class="toshow" id="toshow"></div>
Here, I want to have a separated hidden div (display at top right of the page or next to the menuList) that does not have any content until any of the <a> tag being hovered, and show its responding two attributes until no more mouse hovered.
The code does not have errors. But I don't see anything in red when the mouse hovered through the list. Is it possible to achieve what I am looking for?

You can use the mouseout event to hide the toshow div with hide as you leave a list element. And at each hover event, you can change the html of toshow to the values of the li element which the user is hovering over and use show to display it.
Also make sure you attach the event handlers after you've inserted the html of the dynamically generated list.:
function displayGeneratedList() {
$('#menuList').html(`
<li>Watermelon</li>
<li>Grapes</li>
<li>Strawberry</li>
<li>Blueberry</li>
`);
$("#menuList a").hover(function() {
var countryName = $(this).attr('country');
var fruitColour = $(this).attr('colour');
$('#toshow').html(`${countryName}<br>${fruitColour}`).show();
});
$('#menuList a').mouseout(function() {
$('#toshow').hide();
});
}
$(document).ready(function() {
displayGeneratedList();
});
#menuList {
display: inline-block;
}
.toshow {
display: none;
float: right;
background: maroon;
width: 200px;
height: 100px;
padding: 5px;
color: white
}
<ul class="menubar" id="menuList">
</ul>
<div class="toshow" id="toshow"></div>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>

How to hide a dropdown when the user clicks outside of it

Below is a simplified version of the input dropdown I am working with.
A basic summary of what it does is: if you focus on the input, a dropdown appears. If you click one of the options in the dropdown, the option populates the input and the dropdown disappears. This is achieved using onfocus and a functions I called dropdown(); and undropdown();.
I'm in a dilemma, where I'm unable to make the dropdown disappear when someone clicks elsewhere. If I use onblur, it successfully hides the dropdown, but if you click on an option it doesn't populate the input, this is because, the onblur function runs first and, therefore, the input(); function doesn't not run because the dropdown is already hidden.
If you put an onclick on the body tag, or other parent, it considers the onfocus as a click, where it run's the dropdown(); function then the undropdown(); function immediately so the dropdown never appears since the functions overlap.
I would appreciate help on figuring out how to order the functions so that they are executed in the right order without overlapping with each other.
JSFiddle available here.
function input(pos) {
var dropdown = document.getElementsByClassName('drop');
var li = dropdown[0].getElementsByTagName("li");
document.getElementsByTagName('input')[0].value = li[pos].innerHTML;
undropdown(0);
}
function dropdown(pos) {
document.getElementsByClassName('content')[pos].style.display = "block"
}
function undropdown(pos) {
document.getElementsByClassName('content')[pos].style.display = "none";
}
.drop {
position: relative;
display: inline-block;
vertical-align: top;
overflow: visible;
}
.content {
display: none;
list-style-type: none;
border: 1px solid #000;
padding: 0;
margin: 0;
position: absolute;
z-index: 2;
width: 100%;
max-height: 190px;
overflow-y: scroll;
}
.content li {
padding: 12px 16px;
display: block;
margin: 0;
}
<div class="drop">
<input type="text" name="class" placeholder="Class" onfocus="dropdown(0)"/>
<ul class="content">
<li onclick="input(0)">Option 1</li>
<li onclick="input(1)">Option 2</li>
<li onclick="input(2)">Option 3</li>
<li onclick="input(3)">Option 4</li>
</ul>
</div>
PS: In addition to the above problem, I would appreciate suggestion for edits to get a better title for this question such that someone experiencing a similar problem could find it more easily.

In this case, On onblur you could call a function which fires the undropdown(0); after a very tiny setTimeout almost instantly. Like so:
function set() {
setTimeout(function(){
undropdown(0);
}, 100);
}
HTML
<input type="text" name="class" placeholder="Class" onfocus="dropdown(0)" onblur="set()" />
No other change is required.
function input(pos) {
var dropdown = document.getElementsByClassName('drop');
var li = dropdown[0].getElementsByTagName("li");
document.getElementsByTagName('input')[0].value = li[pos].innerHTML;
undropdown(0);
}
function dropdown(pos) {
document.getElementsByClassName('content')[pos].style.display= "block"
}
function undropdown(pos) {
document.getElementsByClassName('content')[pos].style.display= "none";
}
function set() {
setTimeout(function(){
undropdown(0);
}, 100);
}
.drop {
position: relative;
display: inline-block;
vertical-align:top;
overflow: visible;
}
.content {
display: none;
list-style-type: none;
border: 1px solid #000;
padding: 0;
margin: 0;
position: absolute;
z-index: 2;
width: 100%;
max-height: 190px;
overflow-y: scroll;
}
.content li {
padding: 12px 16px;
display: block;
margin: 0;
}
<div class="drop">
<input type="text" name="class" placeholder="Class" onfocus="dropdown(0)" onblur="set()" />
<ul class="content">
<li onclick="input(0)">Option 1</li>
<li onclick="input(1)">Option 2</li>
<li onclick="input(2)">Option 3</li>
<li onclick="input(3)">Option 4</li>
</ul>
</div>

You could make the dropdown focusable with tabindex, and in the input's blur event listener only hide the dropdown if the focus didn't go to the dropdown (see When onblur occurs, how can I find out which element focus went to?)
<ul class="content" tabindex="-1"></ul>
input.addEventListener('blur', function(e) {
if(!e.relatedTarget || !e.relatedTarget.classList.contains('content')) {
undropdown(0);
}
});
function input(e) {
var dropdown = document.getElementsByClassName('drop');
var li = dropdown[0].getElementsByTagName("li");
document.getElementsByTagName('input')[0].value = e.target.textContent;
undropdown(0);
}
[].forEach.call(document.getElementsByTagName('li'), function(el) {
el.addEventListener('click', input);
});
function dropdown(pos) {
document.getElementsByClassName('content')[pos].style.display = "block"
}
function undropdown(pos) {
document.getElementsByClassName('content')[pos].style.display = "none";
}
var input = document.getElementsByTagName('input')[0];
input.addEventListener('focus', function(e) {
dropdown(0);
});
input.addEventListener('blur', function(e) {
if(!e.relatedTarget || !e.relatedTarget.classList.contains('content')) {
undropdown(0);
}
});
.drop {
position: relative;
display: inline-block;
vertical-align: top;
overflow: visible;
}
.content {
display: none;
list-style-type: none;
border: 1px solid #000;
padding: 0;
margin: 0;
position: absolute;
z-index: 2;
width: 100%;
max-height: 190px;
overflow-y: scroll;
outline: none;
}
.content li {
padding: 12px 16px;
display: block;
margin: 0;
}
<div class="drop">
<input type="text" name="class" placeholder="Class" />
<ul class="content" tabindex="-1">
<li>Option 1</li>
<li>Option 2</li>
<li>Option 3</li>
<li>Option 4</li>
</ul>
</div>

Accepted answer is a naive and unreliable approach. I had a hard-to-catch bug in a complex application because I used a setTimeout to give ~200ms delay so the browser can process dropdown click before blur event happens. While it worked great on every setup I tested it with, some users did have issues, in particular users with slower machines.
The correct way is to test relatedTarget on focusout event:
input.addEventListener('focusout', function(event) {
if(!isDropdownElement(event.relatedTarget)) {
// hide dropdown
}
});
relatedTarget for focusout contains an element reference, which is receiving focus. This reliably works in every browser I've tested so far (I didn't test IE10 and lower, only IE11 and Edge).

W3Schools has a nice example of how to create a custom dropdown:
https://www.w3schools.com/howto/howto_custom_select.asp
This is how the focus is handled in that example:
A global click-handler handles clicks outside of the dropdown list: document.addEventListener("click", closeAllSelect);. So as soon as the user clicks anywhere in the document, all dropdowns are closed.
But when the user selects an element of the dropdown list, the click-event is stopped by e.stopPropagation(); inside of the selection-handler.
This way, you don´t need the timer workaround.

Targetting specific jquery element which have identical class names

I have several divs which are generating dynamically which share same class names, If I hover on parent(myDiv) need to trigger an event and on hover need to add a class to myDiv(child button) and once I clicked on parent div(myDiv) need to unbind hover action?
<div class="myDiv">
<div class="myBtn"></div>
</div>
<div class="myDiv">
<div class="myBtn"></div>
</div>
<div class="myDiv">
<div class="myBtn"></div>
</div>
Tried in the below way
$(document).on('click', '.myDiv', function() {
//some task will goes here
$(this).unbind('hover');
}).hover(function() {
$(this).find('.myBtn').css('background','#666666');
});

I believe what you are looking for is the .off() function.
Here is the jsFiddle link.
JavaScript:
$(document).on('click', '.myDiv', function() {
//some task will goes here
$(this).off();
});
$('.myDiv').hover(function() {
$(this).find('.myBtn').toggleClass('active');
});
CSS:
.myDiv {
display: block;
height: 100px;
width: 100px;
background-color: red;
}
.myBtn {
display: block;
height: 50px;
width: 100px;
background-color: white;
}
.active {
background-color: gray;
}
I hope this helps.

Change color <li>

I'm building a survey and what I'm trying to do now is that when someone clicks an answer (for example: 8) in my list, the background of that answer changes color. This has to work for each seperate answer (there are 60 questions).
The list html/css code:
<div class="answers">
<ul>
<li class="liFirst">1</li>
<li class="liMiddle">2</li>
<li class="liMiddle">3</li>
<li class="liMiddle">4</li>
<li class="liMiddle">5</li>
<li class="liMiddle">6</li>
<li class="liMiddle">7</li>
<li class="liMiddle">8</li>
<li class="liMiddle">9</li>
<li class="liLast">10</li>
</ul>
</div>
.answers {
float: right;
width: 400px;
height: auto;
margin: 0;
background: #DFE5E3;
}
.answers ul {
display: inline-block;
}
.answers li {
float: left;
padding: 0 auto;
font-weight: bold;
}
I've already researched it a bit but can't seem to find a solution that works. I suppose I have to do this in JS/jQuery?
Tried this solution: link! but didn't seem to work for me

add an active class
.active{
background:#000;
color:#FFF;
}
and in jquery toggle class
$('ul li').on('click',function(){
$(this).toggleClass('active');
});
if he wants to choose only one answer
$('ul li').on('click',function(){
$(this).toggleClass('active').siblings().removeClass('active');
});

You can do this with the following:
JQuery
$(document).on('click', '.answers ul li', function(){
$(this).toggleClass('selected').siblings().removeClass('selected');
});
CSS
.answers li.selected {
background: yellow;
}
You probably want to remove the selected background effect one other <li>s once you click on one.
DEMO

If you want to stay strictly CSS based, this checkbox hack may be your best bet... http://css-tricks.com/the-checkbox-hack/
Which can also be implemented with radio buttons to ensure only one answer can be chosen.

jQuery
$( "ul" ).on( "click", "li", function() {
$("li").removeClass("selected");
$(this).addClass("selected");
});
CSS
.selected { background-color:lime;}
JSFiddle Demo

Displaying menu over an image

I have a sliding menu that should be displayed over an image, actually a logo. However, when it does, it is shifted as if the text of the menu wanted to avoid touching the image.
See :
the problem in image http://fruityhotchocolate.com/m.png
(note: the website is in french)
I deal with the event as follows:
$("nav>#menu>ul>li").hover(function(e) {
$("ul",this).css("display","block");
});
Thanks.

You don't need javascript, you can do it with CSS:
Add the following code:
#menu>ul>li>ul {
display: none;
list-style: none;
}
#menu>ul>li:hover>ul {
display: block;
}
Moreover, you should use child selectors (>) instead of descendant selectors:
#menu>ul
#menu>ul>li>ul
#menu>ul>li>ul>li
#menu>ul>li>ul>li>a
#menu>ul>li>a, #menu>ul>li>a:hover, #menu>ul>li>a:visited

Basically, what happens is that the li expands to the same width as the ul because it does not have a fixed width. Try:
$(document).ready(function() {
$('#menu ul').children('li').each(function () {
$(this).css('width', $(this).css('width'));
});
});

Try it with CSS:
<div class="content">
<img src="https://www.google.com.br/images/srpr/logo3w.png​​​​​​​​​​" />
<ul class="menu">
<li>Item 1</li>
</ul>
</div>
​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​
CSS:
.content {
position: relative;
}
.content:hover .menu {
display: block;
}
.menu {
position: absolute;
display: none;
}
Demo: http://jsfiddle.net/nfKc4/