We Keep Coding

Select every child element in HTML except one

I'm trying to edit the style of the HTML elements in my website using javascript but instead of having to write each child element except one, is there a method in javascript to select everything under the parent div <div id = "pages"> except one child?
HTML
<div id = "pages">
<div id = "page-1"></div>
<div id = "page-2"></div>
<div id = "page-3"></div>
<div id = "page-4"></div>
</div>
Javascript
//is there a way to select every pages in div id = "pages" except for one page without typing
//everything manually?
document.getElementbyId("page-1").style.display = "none";
document.getElementbyId("page-2").style.display = "block";
document.getElementbyId("page-3").style.display = "none";
document.getElementbyId("page-4").style.display = "none";

this way:
#pages > div:not([id="page-2"]) {
display : none;
}
<div id = "pages">
<div id="page-1">page-1</div>
<div id="page-2">page-2</div>
<div id="page-3">page-3</div>
<div id="page-4">page-4</div>
</div>
If you hate CSS:
function ShowPage(pageID)
{
document.querySelectorAll('#pages > div').forEach(el =>
{
el.style.display = (el.id === pageID) ? 'block' : 'none'
})
}
ShowPage('page-2')
<div id="pages">
<div id="page-1">page-1</div>
<div id="page-2">page-2</div>
<div id="page-3">page-3</div>
<div id="page-4">page-4</div>
</div>

You can do something like this.
let children = document.getElementById('pages').children;
for (let index = 0; index < children.length; index++){
if (children[index].id !== 'page-2') {
children[index].style.display = 'none';
} else {
children[index].style.display = 'block';
}
}
<div id = "pages">
<div id = "page-1">a</div>
<div id = "page-2">b</div>
<div id = "page-3">c</div>
<div id = "page-4">d</div>
</div>

You can use an array to store your ids to not include, that way you can add more ids in the long run. Then loop through the divs and check if the id is in the array.
const idsnotinclude = ["page-6"]
const divs = document.getElementById('pages').children;
const divsArray = Array.from(divs);
divsArray.forEach(function (div){
if(idsnotinclude.includes(div.id)){
div.style.display = "block";
return;
}
div.style.display = "none";
});
<div id = "pages">
<div id = "page-1">1</div>
<div id = "page-2">2</div>
<div id = "page-3">3</div>
<div id = "page-4">4</div>
<div id = "page-5">5</div>
<div id = "page-6">6</div>
<div id = "page-7">7</div>
<div id = "page-8">8</div>
<div id = "page-9">9</div>
<div id = "page-10">10</div>
</div>

Create a reusable function that accepts a desired page number
Use the Attribute selector [id^=page-] (meaning: starts with: page-)
Use a small regex to get the number suffix from every element ID
Use Element.classList's .toggle method:
const showPage = (num) => {
document.querySelectorAll("[id^=page-]").forEach(EL => {
const pageNum = +EL.id.replace(/\D+/, "");
EL.classList.toggle("hide", pageNum !== num);
});
};
showPage(2);
showPage(3);
.hide {
display: none;
}
<div id="pages">
<div id="page-1">This is page 1</div>
<div id="page-2">This is page 2</div>
<div id="page-3">This is page 3</div>
<div id="page-4">This is page 4</div>
</div>

Double onclick events not working

I have a tab menu on my website and the code used for it works perfectly. JavaScript:
function openTab(tabName) {
var i;
var x = document.getElementsByClassName("tab");
for (i = 0; i < x.length; i++) {
x[i].style.display = "none";
}
document.getElementById(tabName).style.display = "flex";
}
HTML:
<div class="col-md-4">
<div onclick="openTab('tab-1')" class="tab-button">
<h5>IT Problems</h5>
</div>
</div>
<div class="col-md-4">
<div onclick="openTab('tab-2')" class="tab-button">
<h5>Save Time</h5>
</div>
</div>
<div class="col-md-4">
<div onclick="openTab('tab-3')" class="tab-button">
<h5>Cost Effective</h5>
</div>
</div>
And then obviously I applied the IDs ("tab-[1/2/3]") and classes ("tab") to the divs I want as tabs. However, when I replicate the exact same code to have a tab button highlighted for the current tab open, it doesn't work. JavaScript:
function selectedTab(selectName) {
var i;
var x = document.getElementsByClassName("select");
for (i = 0; i < x.length; i++) {
x[i].style.border-bottom-color = "#dbdbdb";
}
document.getElementById(selectName).style.border-bottom-color = "#25a7df";
}
HTML:
<div class="col-md-4">
<div onclick="openTab('tab-1'); selectedTab('select-1')" class="tab-button">
<h5 id="select-1" class="select">IT Problems</h5>
</div>
</div>
<div class="col-md-4">
<div onclick="openTab('tab-2'); selectedTab('select-2')" class="tab-button">
<h5 id="select-2" class="select">Save Time</h5>
</div>
</div>
<div class="col-md-4">
<div onclick="openTab('tab-3'); selectedTab('select-3')" class="tab-button">
<h5 id="select-3" class="select">Cost Effective</h5>
</div>
</div>
I've looked literally everywhere online and had multiple people look at this and nobody can find a solution. Can anyone help?

border-bottom-color is not a valid style property, you need to replace hyphen case with camel case
You need to use the borderBottomColor property of style in selectTab method
function selectedTab(selectName) {
var x = document.getElementsByClassName("select");
for (var i = 0; i < x.length; i++) {
x[i].style.borderBottomColor = "#dbdbdb"; //observe style property Change
}
document.getElementById(selectName).style.borderBottomColor = "#25a7df";
}

select elements by class that have a specific child element with javascript

I have a product list that is structured like the below HTML.
I am trying to select the elements with the class="www-components-menu-product-list--item_DgfZL" that contain the elements with the class name class="www-components-product-card--cbd_2luC9".
Then I want to hide those elements in a click function.
Please note. I have a lot of these items on the page, the function should apply to all the potential elements not just the two I have in the example.
I already understand how to do this with Jquery, but I am trying to avoid Jquery here.
This my attempt with javascript.
var itemClass = document.getElementsByClassName("www-components-menu-product-list--item_DgfZL");
for (i = 0; i < itemClass.length; i++) {
var insideItemClass = itemClass.getElementsByClassName("www-components-product-card--hybrid_2AD7v");
for (i = 0; i < insideItemClass.length; i++) {
insideItemClass.style.display = "none";
}
}
HTML Structure:
<div class="www-components-menu-product-list--item_DgfZL">
<div class="www-components-product-card--card_2mjWk">
<div>
<div class="www-components-product-card--hybrid_2AD7v www-components-product-card--backdrop_Nq0th" style="opacity: 1; transform: translateY(62%);">
</div>
<div class="www-components-product-card--description_3un8n" style="height: 38%;">
</div>
</div>
</div>
</div>
<div class="www-components-menu-product-list--item_DgfZL">
<div class="www-components-product-card--card_2mjWk">
<div>
<div class="www-components-product-card--cbd_2luC9 www-components-product-card--backdrop_Nq0th" style="opacity: 1; transform: translateY(62%);">
</div>
<div class="www-components-product-card--description_3un8n" style="height: 38%;">
</div>
</div>
</div>
</div>
<div class="www-components-menu-product-list--item_DgfZL">
<div class="www-components-product-card--card_2mjWk">
<div>
<div class="www-components-product-card--cbd_2luC9 www-components-product-card--backdrop_Nq0th" style="opacity: 1; transform: translateY(62%);">
</div>
<div class="www-components-product-card--description_3un8n" style="height: 38%;">
</div>
</div>
</div>
</div>
MY ERROR
01:26:25.549 menubest.html:2923 Uncaught TypeError: itemClass.getElementsByClassName is not a function
at HTMLDivElement.<anonymous> (menubest.html:2923)

use this:
itemClass[i].getElementsByClassName
insideItemClass[i].style.display = "none";
instead of
itemClass.getElementsByClassName
insideItemClass.style.display = "none";
Full code:
var itemClass = document.getElementsByClassName("www-components-menu-product-list--item_DgfZL");
for (i = 0; i < itemClass.length; i++) {
var insideItemClass = itemClass[i].getElementsByClassName("www-components-product-card--hybrid_2AD7v");
if(insideItemClass.length > 0){
itemClass.item(i).style.display = "none";
}
}
Here is the fiddle: https://jsfiddle.net/jeL0fezh/8/

toggle div while hiding other divs

I have a side nav on the left hand side with different types of surgeries. They are all in an ul.
When you click on a surgery (ul li), a div will show up on the right hand side, displaying FAQ's for that specific surgery. Clicking on another link in the ul will hide the currently open div and display the one you've just clicked on.
I've managed to do this, but I would also like to toggle the visibility of the FAQ div when I click the same ul li link again.
<html>
<head>
<style>
#popup div { display:none; }
#popup div.show { display:block; }
ul#links li { cursor:pointer;}
</style>
</head>
<body>
<div class="sidenav">
<ul id="links">
<li id="armlift">Arm Lift</li>
<li id="liposuction">Liposuction</li>
<li id="tummytuck">Tummy Tuck</li>
<li id="postgastric">Post-Gastric Bypass Surgery</li>
</ul>
</div>
<div id="popup">
<div id="a_armlift">
<span class="faq_header">Arm Lift</span>
<p class="treatment_question">What is a an Arm Lift?</p>
<div class="treatment_answer">This surgery removes excess...</div>
<p class="treatment_question">What should I know?</p>
<div class="treatment_answer">An incision is made...</div>
</div>
<div id="a_liposuction">
<span class="faq_header">Liposuction Lift</span>
<p class="treatment_question">What is a Liposuction?</p>
<div class="treatment_answer">Liposuction is the removal...</div>
<p class="treatment_question">What should I know?</p>
<div class="treatment_answer">Ideal candidates for...</div>
</div>
<div id="a_tummytuck">
<span class="faq_header">Tummy Tuck</span>
<p class="treatment_question">What is a Tummy Tuck?</p>
<div class="treatment_answer">A tummy tuck tightens...</div>
<p class="treatment_question">What is a Mini Tummy Tuck?</p>
<div class="treatment_answer">A mini-tuck is a...</div>
</div>
<div id="a_postgastric">
<span class="faq_header">Post-Gastric Bypass Surgery</span>
<p class="treatment_question">What is a Post-Gastric Bypass Surgery?</p>
<div class="treatment_answer">Gastric bypass surgery removes...</div>
<p class="treatment_question">What should I know?</p>
<div class="treatment_answer">Each patient has...</div>
</div>
</div>
<script type="text/javascript">
var links_ul = document.getElementById('links');
for (var i = 0; i < links_ul.children.length; i++) {
links_ul.children[i].onclick = function(ev) {
s = document.getElementById('a_' + this.id);
popup = document.getElementsByClassName('show');
for (var j = 0; j < popup.length; j++) {
popup[j].className = '';
}
s.className = 'show';
};
}
</script>
</body>
</html>

I would recommend looking into doing this differently. There are many plugins available that do this sort of thing.
But, here's the answer to your question: http://jsfiddle.net/6Vku8/1/
for (var i = 0; i < links_ul.children.length; i++) {
links_ul.children[i].onclick = function(ev) {
s = document.getElementById('a_' + this.id);
popup = document.getElementsByClassName('show');
var shown = s.className == 'show';
for (var j = 0; j < popup.length; j++) {
popup[j].className = '';
}
s.className = shown ? '' : 'show';
};
}​
You need to find out whether or not the div is "shown" before hiding all of the divs.

JQuery Sort Divs by child divs

I have the following list of divs and I'd like to be able to sort them using Javascript / JQuery.
<div class="item">
<div class="genre">Classical</div>
<div class="name">Alpha</div>
<div class="location">London</div>
</div>
<div class="item">
<div class="genre">Blues</div>
<div class="name">Bravo</div>
<div class="location">New York</div>
</div>
<div class="item">
<div class="genre">Pop</div>
<div class="name">Charlie</div>
<div class="location">Paris</div>
</div>
<div class="buttons">
Sort by Genre
Sort by Name
Sort by Location
</div>
I'd like to be able to sort the items by their Genre/Name/Location alphabetically.
Example: If Sort by Genre was clicked, it would sort the items in 0-9 A-Z by Genre.
If any of you have any tips it would greatly be appreciated.
Cheers :)

You have to make a little change to html like following:
<div id="container">
<div class="item">
<div class="genre">Classical</div>
<div class="name">Alpha</div>
<div class="location">London</div>
</div>
<div class="item">
<div class="genre">Blues</div>
<div class="name">Bravo</div>
<div class="location">New York</div>
</div>
<div class="item">
<div class="genre">Pop</div>
<div class="name">Charlie</div>
<div class="location">Paris</div>
</div>
</div>
<div class="buttons">
Sort by Genre
Sort by Name
Sort by Location
</div>
jQuery
function sorting(tag) {
var items = $('div.item').sort(function(a, b) {
var txt1 = $.trim($('div.' + tag, a).text()),
txt2 = $.trim($('div.' + tag, b).text());
if (txt1 > txt2) return 1;
else return -1;
});
return items;
}
$('.buttons a').on('click', function(e) {
e.preventDefault();
$('div#container').html(sorting(this.id));
});
Working Sample

Ok, this would be my pure JS solution.
First, we should wrap your <div>s into a larger container.
<div id = "wrapper">
<div id = "item">...</div>
<div id = "item">...</div>
<div id = "item">...</div>
</div>
Now, let's define a constant - which property do you want to sort it by? (this will probably be a function parameter later in your code).
var propName = "genre";
Let's get all the <div>s and put them in an array.
var items = document.getElementsByClassName("item");
var itemsArray = new Array();
Let us sort them lexicographically according to the text of the selected property.
for (var i = 0; i < items.length; i++)
itemsArray.push(items[i]);
itemsArray.sort(function(a, b) {
var aProp = a.getElementsByClassName(propName)[0].firstChild.nodeValue;
var bProp = b.getElementsByClassName(propName)[0] .firstChild.nodeValue;
if (aProp < bProp)
return -1;
else if (aProp > bProp)
return 1;
else
return 0;
});
Let us construct a document fragment consisting of the sorted <div>s.
var fragment = document.createDocumentFragment();
for (var i = 0; i < itemsArray.length; i++)
fragment.appendChild(itemsArray[i].clone());
Finally, let us clear the contents of the <div id = "wrapper"> and replace it with the document fragment.
document.getElementById('wrapper').innerHTML = '';
document.getElementById('wrapper').appendChild(fragment);
Also, note that document.getElementsByClassName does not work in IE<9, but I was now really lazy to cope with that issue.
A fiddle: http://jsfiddle.net/nNXr4/

Check this beast:
function sortByCreatedOnAsc(a,b){
return $(a).find('.created_on').text() > $(b).find('.created_on').text();
}
function sortByCreatedOnDesc(a,b){
return $(a).find('.created_on').text() < $(b).find('.created_on').text();
}
function reorderEl(el){
var container = $('#tasks');
container.html('');
el.each(function(){
$(this).appendTo(container);
});
}
$('#created_on').click(function(){
if($(this).hasClass("asc")){
reorderEl($('.task').sort(sortByCreatedOnDesc));
$(this).removeClass("asc");
$(this).addClass("desc");
} else {
reorderEl($('.task').sort(sortByCreatedOnAsc));
$(this).removeClass("desc");
$(this).addClass("asc");
}
return false;
});
jsfiddle: http://jsfiddle.net/jKJc3/116/