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I'm trying to get a button within my HTML to display images that are hidden when it is clicked. I'm super new to working with jquery/js so any help that anyone would have is most appreciated.
Html for the input field and the button that should fire off the script:
<div class="col-md-3">
<div>Select City</div>
<input type="text" id="citySelector">
</div>
<button type="button" class="btn btn-primary" id="findHotel" data-dismiss="modal">Find Hotel</button>
Html for the images that would be displayed
<div class="container-fluid col-md-8 col-md-offset-3" id="chicagoResults">
<table>
<tr>
<td><img src="images/hotels/chicago/chicago1.png" id="chicagoHotels"></td>
</tr>
<tr>
<td><img src="images/hotels/chicago/chicago2.png" id="chicagoHotels"></td>
</tr>
</table>
</div>
CSS:
#chicagoResults {
color: #f6f1ed;
margin-top: 110px;
margin-left: 180px;
display: none;
}
JS:
var citySelector = $("#citySelector").val().trim();
$("#findHotel").click(citySearch);
function citySearch () {
if (citySelector === "New York"){
document.('nyResults').style.display = "block";
}
else if (citySelector === "Chicago"){
document.('chicagoResults').style.display = "block";
}
});
You have to correct those lines :
document.('nyResults').style.display = "block";
document.('chicagoResults').style.display = "block";
By adding getElementById after document. :
document.getElementById('nyResults').style.display = "block";
document.getElementById('chicagoResults').style.display = "block";
Also your function should end by } and not });, and you have to pass value of field to your function so add parameter to your function definition.
Hope this helps.
$("body").on('click', "#findHotel", function()
{
citySearch($("#citySelector").val().trim());
});
function citySearch (citySelector)
{
if (citySelector === "New York")
$('#nyResults').show();
else if (citySelector === "Chicago")
$('#chicagoResults').show();
}
#chicagoResults, #nyResults {
color: #f6f1ed;
margin-top: 110px;
margin-left: 180px;
display: none;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="col-md-3">
<div>Select City</div>
<input type="text" id="citySelector">
<button type="button" id="findHotel">find Hotel</button>
</div>
<div class="container-fluid col-md-8 col-md-offset-3" id="chicagoResults">
<table>
<tr>
<td><img src="https://foto.hrsstatic.com/fotos/3/3/256/256/80/FFFFFF/http%3A%2F%2Ffoto-origin.hrsstatic.com%2Ffoto%2F0%2F0%2F0%2F2%2F000279%2F000279_a_3979595.jpg/Tw1WKUCVIFelYvywT6gzeQ%3D%3D/259,140/6/WYNDHAM_GRAND_CHICAGO_RIVERFRO-Chicago-Exterior_view-3-279.jpg" id="chicagoHotels"></td>
</tr>
</table>
</div>
<div class="container-fluid col-md-8 col-md-offset-3" id="nyResults">
<table>
<tr>
<td><img src="http://foto.hrsstatic.com/fotos/0/3/256/256/80/000000/http%3A%2F%2Ffoto-origin.hrsstatic.com%2Ffoto%2F5%2F4%2F7%2F5%2F547591%2F547591_z_4564886.jpg/jJ7hmPcA3%2F9wQG%2BKfy0p8g%3D%3D/560,373/6/RADISSON_BLU_AQUA_CHICAGO-Chicago-Room-21-547591.jpg" id="chicagoHotels"></td>
</tr>
</table>
</div>
try changing this:
document.('nyResults').style.display = "block";
document.('chicagoResults').style.display = "block";
to this:
$('#nyResults').show();
$('#chicagoResults').show();
Final Code:
$("#findHotel").click(function() {
var citySelector = $("#citySelector").val().trim();
if (citySelector === "New York"){
$('#nyResults').show();
} else if (citySelector === "Chicago"){
$('#chicagoResults').show();
}
});
I would recommend learning the basics of javascript itself before diving into a library.
That being said, (despite the syntax errors) there are a couple problems with your code:
Your click event defines a function, but never calls it.
You need to call a function for the code inside of it to be executed.
You're using a Table to hold your layout.
A <Table> tag used for presentation purposes is the scourge of good web design. Use divs and style them as tables if need be with display: table and display: table-cell but do not use the <Table> tag unless you're filling it with tabular data.
$(function(){
var findButton = $("#find-button");
var chicagoResults = $("#chicagoResults");
findButton.on("click", function(){
var input = $("#city-selector").val().trim().toLowerCase();
if(input === "chicago"){
chicagoResults.css({display: "block"});
}
else if(input === "new york"){
//show new york block
}
});
});
#chicagoResults {
display: none;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="col-md-3">
<div>Select City</div>
<input type="text" id="city-selector">
</div>
<button id="find-button">FindHotel</button>
<div class="container-fluid col-md-8 col-md-offset-3" id="chicagoResults">
<p>yay</p>
</div>
Related
Good day!
I have a pop-up section. There are 2 div blocks in it with identical structure. The idea is to have 2 buttons (one is to edit a profile the other is to create a new card with some info) that will call this pop-up, but i need to track which one is called. The popup itself has a darker background compare to main page and a form. I have thought of a modifier popup__container_type_(edit/create) that has a display: none command so when i toggle it it the popup would appear with the right form. Most likely my logic was mistaken. I dont know how to distiguish them (div blocks) correctly.
Another problem is that closebutton seems to work for one form only.
Any help would be great!
HTML:
<section class="popup">
<div class="popup__container popup__container_type_edit">
<button type="button" class="popup__cancelbutton"></button>
<form class="popup-form" name="form">
<h2 class="popup-form__title">Header 1</h2>
<input type="text" class="popup-form__input popup-form__input_type_name" name="name">
<input type="text" class="popup-form__input popup-form__input_type_job" name="job">
<button type="submit" class="popup-form__savebutton">Save</button>
</form>
</div>
<div class="popup__container popup__container_type_create">
<button type="button" class="popup__cancelbutton"></button>
<form class="popup-form" name="form">
<h2 class="popup-form__title">Header 2</h2>
<input type="text" class="popup-form__input popup-form__input_type_place" placeholder="Name of the place" name="place">
<input type="text" class="popup-form__input popup-form__input_type_imagelink" placeholder="Image link" name="imagelink">
<button type="submit" class="popup-form__savebutton">Create</button>
</form>
</div>
</section>
JS:
let popUpSection = document.querySelector(`.popup`);
let cancelButton = popUpSection.querySelector(`.popup__cancelbutton`);
let popUpContainer = popUpSection.querySelector(`.popup__container`);
let formElement = popUpSection.querySelector(`.popup-form`);
let newInputName = popUpSection.querySelector(`.popup-form__input_type_name`);
let newInputJob = popUpSection.querySelector(`.popup-form__input_type_job`);
let inputName = document.querySelector(`.profile-info__title`);
let inputJob = document.querySelector(`.profile-info__text`);
let editButton = document.querySelector(`.profile-info__editbutton`);
let createButton = document.querySelector(`.profile__addbutton`);
//Open / close popup section
let formTogglePopUp = () => {
if (!popUpSection.classList.contains(`popup_acitve`)){
//Autofill
newInputName.value = inputName.textContent;
newInputJob.value = inputJob.textContent;
}
popUpSection.classList.toggle(`popup_active`);
}
//Save input changes
function popUpFormSaved (event) {
event.preventDefault();
inputName.textContent = newInputName.value;
inputJob.textContent = newInputJob.value;
formTogglePopUp();
}
formElement.addEventListener('submit', popUpFormSaved);
cancelButton.addEventListener('click', formTogglePopUp);
editButton.addEventListener('click', formTogglePopUp);
createButton.addEventListener(`click`, formTogglePopUp);
CSS:
.popup__container
{
display: block; *by default*
}
.popup__container_type_(edit/create)
{
display: none;
}
.popup
{
display:none;
}
.popup__active
{
display: flex;
}
You can do it with js, set ids and use them instead of class, it's more easy.
function popUpEdit() {
document.getElementById("popUp").style.display = "block";
document.getElementById("popUpEdit").style.display = "block";
}
function popUpCreate() {
document.getElementById("popUp").style.display = "block";
document.getElementById("popUpCreate").style.display = "block";
}
#popUp, #popUpEdit, #popUpCreate {
display: none;
}
<div class="smt">
Hello
<button onclick="popUpEdit()">Edit</button>
</div>
<div class="smt">Hello
<button onclick="popUpCreate()">Create</button>
</div>
<section id="popUp">
<div>popUp</div>
<div id="popUpEdit">Edit-popup</div>
<div id="popUpCreate">Create-popup</div>
</section>
Generaly, I do that this way:
const SectionPopUp = document.querySelector('section.popup')
function show(elm)
{
SectionPopUp.classList.toggle('Create','Create'===elm)
SectionPopUp.classList.toggle('Edit','Edit'===elm)
}
section.popup,
section.popup.Edit > div:not(.popup__container_type_edit),
section.popup.Create > div:not(.popup__container_type_create) {
display:none;
}
section.popup.Edit,
section.popup.Create {
display:block;
}
/* cosmetic part, just for testing here */
section.popup > div {
border : 1px solid aqua;
padding : .6em;
margin : 1em;
width : 15em;
}
div.popup__container_type_create {
border-color: orange !important;
}
<button onclick="show('Edit')"> show Edit </button>
<button onclick="show('Create')"> show Create </button>
<button onclick="show('')"> show none </button>
<section class="popup">
<div class="popup__container popup__container_type_edit">
pop-up edit content
</div>
<div class="popup__container popup__container_type_create">
pop-up create content
</div>
</section>
I've found tutorials that make an image hidden with some css, javascript and html but I'm having trouble making the image hidden first, and then having the button be able to make it visible and then hidden if pressed again.
edit: hopefully this code should help! Again, sorry I can't figure some of this out, I don't really know how this site works and I'm pretty new to coding,,,,
edit 2: I added where the function is being called. It's suppose to be a multiple choice that shows an image when correct!
<style>
div.notdropdown {
margin-top: 100px;
margin-bottom: 100px;
border: 1px solid black;
background-color: rgb(181, 204, 180, 0.9);
}
.hide{
display:none;
}
</style>
</body>
<script>
function myFunction() {
var x = document.getElementById("myDIV");
if (x.style.display === "none") {
x.style.display = "block";
} else {
x.style.display = "none";
}
}
</script>
<div id="myDIV">
<img class= "hide" src="https://www.merriam-webster.com/assets/mw/static/art/dict/frig_bi.gif">
<br>
<a class= "hide" href="https://www.merriam-webster.com/dictionary/frigate%20bird">https://www.merriam-webster.com/dictionary/frigate%20bird </a>
<br>
</div>
<h1>What is a Frigate?</h1><br>
<form >
<input type="radio" name="choice" value="Bird"> A type of Bird
<input type="radio" name="choice" value="Mangrove"> A type of Mangrove tree
<input type="radio" name="choice" value="Sea Creature"> A type of Sea Creature
<input type="radio" name="choice" value="None"> None of These
</form>
<button onclick="submitAnswer();"> Submit Answer</button>
</body>
<script>
function submitAnswer() {
var radios = document.getElementsByName("choice");
var i = 0, len = radios.length;
var checked = false;
var userAnswer;
for( ; i < len; i++ ) {
if(radios[i].checked) {
checked = true;
userAnswer = radios[i].value;
}
}
if(!checked) {
alert("please select choice answer");
return;
}
// Correct answer
if(userAnswer === "Bird") {
myFunction();
alert("Answer is correct!");
}
// incorrect answer
else {
alert("Answer is wrong!");
}
}
</script>
</body>
</html>
in fact it's very simple, just use the toggle method, which allows you to easily enable and disable a class in an element
function toggleImage(){
document.querySelector('#image').classList.toggle('hidden');
}
.hidden{
display: none;
}
.w-100{
width: 100%;
}
.mb-10{
margin-bottom: 10px;
}
<button onClick="toggleImage()" class="w-100 mb-10">Show/Hide</button>
<img src="https://images.pexels.com/photos/462118/pexels-photo-462118.jpeg?auto=compress&cs=tinysrgb&dpr=1&w=500" id="image" class="hidden w-100"/>
to work with a link to just change the tag to a and use href="#"
function toggleImage(){
document.querySelector('#image').classList.toggle('hidden');
}
.hidden{
display: none;
}
.w-100{
width: 100%;
}
.mb-10{
margin-bottom: 10px;
}
<a onClick="toggleImage()" class="w-100 mb-10" href="#">Show/Hide</a>
<img src="https://images.pexels.com/photos/462118/pexels-photo-462118.jpeg?auto=compress&cs=tinysrgb&dpr=1&w=500" id="image" class="hidden w-100"/>
You just need to call your function on button tag. Add a button in your html file on which you want your div to toggle. As you are using function name myFunction, call it on that function using
onClick="myFunction()"
And your code should work fine. Don't need to add any new class or even hide your div by default.
check this code. I think this will help you.
<button id = "showhide" onclick = "showhide()">Show Hide Image</button>
<div id = "image" style="width: 100px; height : 100px;">
<h4> Image Code </h4>
</div>
<script>
$('#showhide').on('click', function(e){
$("#image").toggle();
});
</script>
I am creating form page where I wanted to hide text area box when clicked on image as well as to swap the image and vice-versa. Right now I am able to hide/show div but image is not displayed when text area box is hidden and also does not return to first image. There are 2 scripts one for div show/hide and another to swap image.
1. image: output before click
2. image: after hitting on an image
<script>
function showhide(id){
if (document.getElementById){
obj = document.getElementById(id);
if (obj.style.display == "none"){
obj.style.display = "";
} else {
obj.style.display = "none";
}
}
}
var onImg= "testim.png, valm.png";
var offImg= "testip.png, valp.png";
</script>
<div style="margin-top: 10px; text-align: center;">
<ul id="text_type_tab" name="text_type_tab">
<li id="PR_TEXT_TAB" class="tab_active"> <img src="testim.png" onclick="this.src = (this.src.endsWith(offImg)? onImg : offImg);" align="middle"/></li>
</ul>
</div>
<table id="hidden_content" width="80%" align="center" style="margin-bottom: 10px; margin-left: 10px; margin-right: 10px">
<tr>
<td colspan="2">
<textarea id="textInputField1" name="textInputField1" style="resize:vertical; width: 900px;" rows="15" cols="105" wrap="pre" onblur="onTextSubmitFunction('Apply')"></textarea>
</td>
</tr>
</table>
Please help.
Thanks a lot, in advance!
[1]: http://i.stack.imgur.com/7PwdK.png
[2]: http://i.stack.imgur.com/5j6FE.png
Pointer 1
Change the below variable to the absolute link of your image
var onImg= "testim.png, valm.png"; //this should be one link
var offImg= "testip.png, valp.png"; //this should be one link
(Just to be on the safe side for testing test)
example
var onImg= "https://encrypted-tbn2.gstatic.com/images?q=tbn:ANd9GcSHrNNGyEGlgXtd5u4fq1eQ18z8TMXHCZqf_4zI9yz6uo7N8KeXuFVRr-tR";
var offImg= "https://encrypted-tbn1.gstatic.com/images?q=tbn:ANd9GcR8x25Dihzxt-pilDC6-SAVJ8JEVB4VItyjJhRFFuAGNFPx5YBbR5rQST01";
Pointer 2
change
<li id="PR_TEXT_TAB" class="tab_active"> <img src="testim.png" onclick="this.src = (this.src.endsWith(offImg)? onImg : offImg);" align="middle"/></li>
</ul>
to this
<li id="PR_TEXT_TAB" class="tab_active"> <img src="testim.png" onclick="this.src = (this.src.endsWith(offImg)? onImg : offImg);" align="middle"/></li>
</ul>
that is it should be </a></li> instead of </li></a>
Pointer 3
Change this
<a href="javascript:showhide('textInputField1');">
to this
<a href="#" onclick="javascript:showhide('textInputField1')">
Attach it directly to the onclick event since href attribute simply points to a location.
here is a snippet
- <script>
function showhide(id){
if (document.getElementById){
obj = document.getElementById(id);
obj.style.display == "none"?obj.style.display = "":obj.style.display = "none";
// if (obj.style.display == "none"){
// obj.style.display = "":;
// }
//else {
// obj.style.display = "none";
//}
}
}
var onImg= "https://encrypted-tbn2.gstatic.com/images?q=tbn:ANd9GcSHrNNGyEGlgXtd5u4fq1eQ18z8TMXHCZqf_4zI9yz6uo7N8KeXuFVRr-tR";
var offImg= "https://encrypted-tbn1.gstatic.com/images?q=tbn:ANd9GcR8x25Dihzxt-pilDC6-SAVJ8JEVB4VItyjJhRFFuAGNFPx5YBbR5rQST01";
</script>
<div style="margin-top: 10px; text-align: center;">
<ul id="text_type_tab" name="text_type_tab">
<li id="PR_TEXT_TAB" class="tab_active"> <img src="https://encrypted-tbn1.gstatic.com/images?q=tbn:ANd9GcR8x25Dihzxt-pilDC6-SAVJ8JEVB4VItyjJhRFFuAGNFPx5YBbR5rQST01" onclick="this.src = (this.src.endsWith(offImg)? onImg : offImg);" align="middle"/></li>
</ul>
</div>
<table id="hidden_content" width="80%" align="center" style="margin-bottom: 10px; margin-left: 10px; margin-right: 10px">
<tr>
<td colspan="2">
<textarea id="textInputField1" name="textInputField1" style="resize:vertical; width: 900px;" rows="15" cols="105" wrap="pre" onblur="onTextSubmitFunction('Apply')"></textarea>
</td>
</tr>
</table>
I am working on a project right now. When you click on one item the info below appears, i wanted to know how to make it disappear when you click on the next item without reclicking the same item....For example I have pizza's in my project, I want to click meat pizza to see the toppings then click on cheese pizza to see the toppings and the meat toppings disappear.
Here is my Html code....
<table align="center">
<tr>
<td><fieldset style="border:1px solid red;padding:5px;
margin-bottom:10px;width:200px; height:150px">
<a onclick ="javascript:ShowHide('HiddenDiv')" href="#Meat">Meat Pizza</a>
</fieldset></td>
<td><fieldset style="border:1px solid red;padding:5px;
margin-bottom:10px; width:200px; height:150px">
<a onclick ="javascript:ShowHide('HiddenDiv2')" href="#Cheese">
Cheese Pizza</a>
</fieldset></td>
<td><fieldset style="border:1px solid red;padding:5px;
margin-bottom:10px; width:200px; height:150px;">
<a onclick ="javascript:ShowHide('HiddenDiv3')" href="#Veggie">
Veggie Pizza</a>
</fieldset></td>
</tr>
</table>
<div class="mid" id="HiddenDiv" style="DISPLAY: none" align="center">
<a name="Meat">
<table>
<tr><td width="220">Meat Toppings</td></tr>
</table>
</a>
</div>
<div class="mid" id="HiddenDiv2" style="DISPLAY: none" align="center">
<a name="Cheese">
<table>
<tr><td width="220">Cheese Toppings</td></tr>
</table>
</a>
</div>
<div class="mid" id="HiddenDiv3" style="DISPLAY: none" align="center">
<a name="Veggie">
<table>
<tr><td width="220">Veggie Toppings</td></tr>
</table>
</a>
</div>
Here is my javascript......
function ShowHide(divId)
{
if(document.getElementById(divId).style.display == 'none')
{
document.getElementById(divId).style.display='block';
}
else
{
document.getElementById(divId).style.display = 'none';
}
}
function showApp(a) {
var aside = document.getElementById('aside');
var arr = aside.getElementsByTagName('span');
for (i = 0; i < arr.length; i++) {
if (arr[i].getAttribute('id') != a) {
arr[i].style.visibility = 'hidden';
}
}
x = document.getElementById(a);
var state;
if (x.style.visibility == 'visible') {
state = 'hidden';
}
else {
state = 'visible';
}
x.style.visibility = state;
}
Some solutions for example:
You may create global JS element which will contain current showed element and update it every click.
You may on every click hide all elements at first and then show required element.
Add for loop in ShowHide() function like this :
UPDATED
ShowHide = function(divId)
{
if(document.getElementById(divId).style.display == 'none')
{
var alltexts = document.getElementsByClassName('mid');
for(var i=0;i<alltexts.length;i++)
alltexts[i].style.display = 'none';
document.getElementById(divId).style.display='block';
}
else
{
document.getElementById(divId).style.display = 'none';
}
}
In ShowHide we have to hide all texts before showing the clicked item text .
Find Working Fiddle HERE.
I need to develop a News page with 3 articles that can be hidden or showed one by one, by means of 2 buttons: "Show more news" and "Show less news"
Each article must be hidden/displayed by clicking the relevant button only once, starting from the last article (at the bottom page) to the first one (top of page). HTML:
<!-- Articles-->
<article id="art-1" class="row" >My first Art</article>
<article id="art-2" class="row art" >My second Art</article>
<article id="art-3" class="row art" >My last Art</article>
<!--Buttons-->
<button class="button-grey" id="show-less-news1">Show Less</button>
<button class="button-grey" id="show-less-news2">Show Less</button>
<button class="button-grey" id="show-less-news3">Show Less</button>
<button class="button-grey" id="show-more-news1">Show More</button>
<button class="button-grey" id="show-more-news2">Show More</button>
<button class="button-grey" id="show-more-news3">Show More</button>
I managed to do this with JQuery but the code is extremely verbose and I need 6 buttons instead of 2, but I believe there must be a simplier way to get the same result with a less complex code. This is the JQuery code:
$("#show-more-news1").css({display:'none'});
$("#show-more-news2").css({display:'none'});
$("#show-more-news3").css({display:'none'});
$("#show-less-news1").css({display:'none'});
$("#show-less-news2").css({display:'none'});
//function 1 less
$("#show-less-news3").click(function(){
$("#art-3").hide(400);
$("#show-less-news3").hide();
$("#show-more-news3").show();
$("#show-less-news2").show();
});
//function 2 less
$("#show-less-news2").click(function(){
$("#art-2").hide(400);
$("#show-less-news2").hide();
$("#show-more-news3").hide();
$("#show-less-news1").show();
$("#show-more-news2").show();
});
//function 3 more
$("#show-more-news3").click(function(){
$("#art-3").show(400);
$("#show-more-news3").hide();
$("#show-less-news2").hide();
$("#show-less-news3").show();
});
//function 3 less
$("#show-less-news1").click(function(){
$("#art-1").hide(400);
$("#show-less-news1").hide();
$("#show-more-news2").hide();
$("#show-more-news1").show();
});
//function 2 more
$("#show-more-news2").click(function(){
$("#art-2").show(400);
$("#show-more-news2").hide();
$("#show-less-news1").hide();
$("#show-less-news2").show();
$("#show-more-news3").show();
});
//function 1 more
$("#show-more-news1").click(function(){
$("#art-1").show(400);
$("#show-more-news1").hide();
$("#show-less-news1").show();
$("#show-more-news2").show();
});
Some CSS:
article {
position: realtive;
width: 100%;
height: 50px;
border: 1px solid red;
float:left;
background-color: yellow;
}
.button-grey {
display: block;
background-color: #cfcfcf;
width: 150px;
height: 30px;
float:right;
}
Here's a CodePen. Can someone help me to get the same result with a better code?
Thanks a lot!
Using your HTML with only two buttons and identical CSS
The following JS works for better for me:
Javascript:
var newsDepth = 3;
var maxNewsDepth = 3;
$('#show-more-news').hide();
$('#show-more-news').click( function () {
(newsDepth < maxNewsDepth ) && newsDepth++;
$('#art-' + newsDepth).show();
$('#show-less-news').show();
if (newsDepth == maxNewsDepth) $('#show-more-news').hide();
});
$('#show-less-news').click( function () {
( newsDepth > 1 ) && newsDepth--;
$('#art-' + (newsDepth + 1)).hide();
$('#show-more-news').show();
if (newsDepth == 1) $('#show-less-news').hide();
});
HTML
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.0/jquery.min.js"></script>
<!-- Articles-->
<article id="art-1" class="row">My first Art</article>
<article id="art-2" class="row art">My second Art</article>
<article id="art-3" class="row art">My last Art</article>
<!--Buttons-->
<button class="button-grey" id="show-less-news">Show Less</button>
<button class="button-grey" id="show-more-news">Show More</button>
Here is a codepen for you
I've got a better version in this jsfiddle.
HTML:
<!-- Articles-->
<div id="articles">
<article id="art-1" class="row">My first Art</article>
<article id="art-2" class="row art">My second Art</article>
<article id="art-3" class="row art">My last Art</article>
</div>
<!--Buttons-->
<button class="button-grey" id="show-less">Show Less</button>
<button class="button-grey" id="show-more" style="display: none">Show More</button>
JS:
var allArticles = $('#articles article');
var visibleCount = 3;
$('#show-less').on('click', function() {
// no more articles to hide
if (visibleCount == 0) return;
// hide the previous one
$(allArticles[--visibleCount]).hide();
// Show the more button
$('#show-more').show();
// hide the less button
if (visibleCount == 0)
$('#show-less').hide();
});
$('#show-more').on('click', function() {
if (visibleCount == allArticles.length) return;
// show the next article
$(allArticles[visibleCount++]).show();
// Show the less button
$('#show-less').show();
// hide the more button
if (visibleCount == allArticles.length)
$('#show-more').hide();
});