Develop Reference

How to filter image gallery by tags using Javascript?

I've been struggling to understand how to overcome this problem. I've been tasked to retrieve user input, and on keystroke see if user input matches any amount of .tags If not, hide the .thumb-display.
So far, I've been able to gather that I'll need to add/remove the classlist "hidden" as well use the event handler "input", however I don't quite understand how to use event handler "input" in this context as well as change event.
This is for homework so I'd much rather have an explanation for an answer, rather than just an answer so I can understand what I currently can't. Even a hint could be vital and set me on the right track! Rules are: no changing HTML and must use JavaScript.
Here is the HTML:
<form class="frm-filter">
<div class="frm-group">
<a class="reset hidden" href="#">Reset</a>
<input class="frm-control" type="text" id="filter" name="filter" placeholder="tag filter" />
</div>
</form>
</nav>
<section class="gallery">
<div class="row">
<h1>Gallery</h1>
</div>
<div class="row">
<div class="thumb-display">
<img src="img/thumbs/african_road_to_the_mountain.jpg" alt="african road to the mountain" />
<p class="tags">#africa #mountain #road</p>
</div>
<div class="thumb-display">
<img src="img/thumbs/beach_and_palms.jpg" alt="beach and palms" />
<p class="tags">#palmbeach #distantpeaks</p>
</div>
<div class="thumb-display">
<img src="img/thumbs/beach_road.jpg" alt="beach road" />
<p class="tags">#oceanbeach #mountainroad</p>
</div>
<div class="thumb-display">
<img src="img/thumbs/calm_lake.jpg" alt="calm lake" />
<p class="tags">#lake #clearskies #onthewater</p>
</div>
<div class="thumb-display">
<img src="img/thumbs/fall_bridge.jpg" alt="fall bridge" />
<p class="tags">#fallcolors #bridgecrossing #river</p>
</div>
</div>
</section>

You need to listen on input keyup event and retrieve value from input then check if that value matches any tags and show/hide `parentNode
document.addEventListener('DOMContentLoaded', () => {
const inputEl = document.getElementById('filter');
const tags = Array.from(document.querySelectorAll('.tags'));
inputEl.addEventListener('keyup', () => {
const value = inputEl.value;
tags.forEach(tag => {
if (tag.textContent.includes(value)) {
tag.parentNode.style.display = 'block'
} else {
tag.parentNode.style.display = 'none'
}
})
})
})
<form class="frm-filter">
<div class="frm-group">
<a class="reset hidden" href="#">Reset</a>
<input class="frm-control" type="text" id="filter" name="filter" placeholder="tag filter" />
</div>
</form>
<section class="gallery">
<div class="row">
<h1>Gallery</h1>
</div>
<div class="row">
<div class="thumb-display">
<img src="img/thumbs/african_road_to_the_mountain.jpg" alt="african road to the mountain" />
<p class="tags">#africa #mountain #road</p>
</div>
<div class="thumb-display">
<img src="img/thumbs/beach_and_palms.jpg" alt="beach and palms" />
<p class="tags">#palmbeach #distantpeaks</p>
</div>
<div class="thumb-display">
<img src="img/thumbs/beach_road.jpg" alt="beach road" />
<p class="tags">#oceanbeach #mountainroad</p>
</div>
<div class="thumb-display">
<img src="img/thumbs/calm_lake.jpg" alt="calm lake" />
<p class="tags">#lake #clearskies #onthewater</p>
</div>
<div class="thumb-display">
<img src="img/thumbs/fall_bridge.jpg" alt="fall bridge" />
<p class="tags">#fallcolors #bridgecrossing #river</p>
</div>
</div>
</section>

You need to get user input. So you need to listen for an event. Add Event Listener to the rescue. Which event, though? How about "change".
Ok, so you can get what they typed, good. Now you need to compare it to the tags. So it's time to find all of those. You can get all of the ".tags" with a querySelector. That will get you a list of nodes that you can loop through to collect the innerText. You can check if the innerText includes the input that the user typed. If it doesn't, then you find the closest ".thumb-display" and set a style attribute to hide it. If the input IS in the innerText, then you need to remove any style attribute that is hiding the closest parent.
Boom, done. Maybe, I didn't try it an I almost never get it right the first time. But it would be something along those lines.

How to make Slide buttons in js

Hey i am working on a css slider it is working fine without js only with css but i want to make a js script for navigation buttons for slider i mean i want to make a js script that can slide the content left or right by clicking on left or right button and it has to make a loop i mean if you click button once then it has to slide content left or right by 100% each time and max width is 1000% of the content which i want to slide can anyone please help me for this
<div class="slider-10">
<div class="slider-box" style="width: 1000%">
<img src="img/image-1.jpg" />
<img src="img/image-2.jpg" />
<img src="img/image-3.jpg" />
<img src="img/image-4.jpg" />
<img src="img/image-5.jpg" />
<img src="img/image-6.jpg" />
<img src="img/image-7.jpg" />
<img src="img/image-8.jpg" />
<img src="img/image-9.jpg" />
<img src="img/image-10.jpg" />
</div>
</div>
And i want to slide this section:
<div class="slider-box" style="width: 1000%">
<img src="img/image-1.jpg" />
<img src="img/image-2.jpg" />
<img src="img/image-3.jpg" />
<img src="img/image-4.jpg" />
<img src="img/image-5.jpg" />
<img src="img/image-6.jpg" />
<img src="img/image-7.jpg" />
<img src="img/image-8.jpg" />
<img src="img/image-9.jpg" />
<img src="img/image-10.jpg" />
</div>
Please help me

You can set any img in a div element means 1 div for every imgtag then declare a function in js and call it with onclick event for EX: click right button sends 1 to function and left one -1.
then yo can add class for every div that should show.

JavaScript variables used inside html

I have to make a mock-up website for a school assignment. The website involves a search feature. For the assignment, the search feature does not have to be fully functional; So for the mock-up, I want to have an iframe that will change the src="" value after a button is pushed. At first, the iframe will display an image, then after the client/user enters something (any string the input doesnt matter) and hits "search", I want the src for the iframe to change. I was wondering if there was any way to do this using javascript. I'm fairly new and know very little about javascript. The iframe that I need to change has and id of search_frame. This is my code:
<head>
<title>Home</title>
<link rel="stylesheet" type="text/css" href="HOME.CSS"/>
</head>
<body>
<div id="main">
<div id="top" >
<a href="" id="LOGO">
<img alt="LOGO" height="37" src="LOGO.JPG" width="342" />
</a>
<img id="Cheetah_Logo" alt="cheetah_logo" height="29" src="Cheetah_Corner.PNG" width="205" /><a id="CHEETAH_LINK">
</a>
</div>
<div id="center">
<div id="Left_Section">
<div id="checkBox">
<form>
<input type="radio"/>Text-Books
<input type="radio"/>eBooks
<input type="radio"/>Class-Notes
<input type="radio"/>Exams
<input type="radio"/>Tutors
<input type="radio"/>Software
<input type="radio"/>Homework
<input type="radio"/>Free-Stuff
<input type="radio"/>Events
<input type="radio"/>Other
<a id="Advanced" href="http://Home.html">Advanced Search</a>
</form>
<div id="search_Div">
<form id="Search">
<input id="search_Bar" type="text" />
<button>Search</button>
</form>
</div>
</div>
<div id="search_results">
<iframe id="search_frame" scrolling="yes" src="image.png">
Your system does not support frames
</iframe>
</div>
<div id="links">
<a href="Product.html" id="link_product">
</a>
<a href="profile_2.html" id="link_profile">
<img id="profile_button" alt="profile_button" src="profile_button.jpg" />
</a>
<a id="click_here" href="profile_2.html">
Click here to view your profile!
</a>
</div>
</div>
<div id="bottom">
<center>
<img src="bottom_bar.JPG" alt="bottom_bar" />
</center>
</div>
</div>
<div>
<img src="Left_Filler.JPG" alt="Left_Filler" id="Left_Filler"/>
<img src="Right_Filler.JPG" alt="Right_Filler" id="Right_Filler"/>
</div>
</div>
</body>
</html>
This is the idea general idea of the type of script I want to run:
This will set the iframe to the image:
<script type="text/javascript">
function rowdy(num){
variable1='Rowdy.jpeg';
return variable1;
}
</script>
This is my mocksearch once the button is pushed:
<script type="text/javascript">
function mockSearch(var1)
{
var1='Results_Mock_CSS.css';
return var1;
}
</script>
I know these are incorrect, but I was thinking there might be a way to put the function calls inside the src for the iframe, any help, guidance, or ideas will be greatly appreciated, thanks in advanced!

You just need to have click event on your button like,
<input type="button" value="Search" onclick="SearchClicked();"/>
And that click can change the source like below.
<script type="text/javascript">
function SearchClicked() {
document.getElementById('search_frame').src = 'Rowdy.jpg';
}
</script>

First, kill the "form" element as that basically indicates a trip back to the server which you don't want (sortof, you may want it back later but leave that until you understand it). Then install an onclick handler for the button that locates the iframe and updates the src attribute.
Something like
<div id="search_Div">
<input id="search_Bar" type="text" />
<button onclick="document.getElementById('search_frame').src='Rowdy.jpeg';">
Search</button>
</div>
will do it.

As a previous answer states, you could use the onClick property. You could also use jQuery magic (which would be less efficient, but for a school project, the difference is negligible).
First, in the head, you'd have to import jQuery with the statement
<script src="http://code.jquery.com/jquery-1.10.2.min.js"></script>
and then, you could put right after it
<script>
$(document).ready(function() {
$('button').click(function() {
$('#search_frame').attr('src', 'Rowdy.jpg');
}
}
</script>
to bind a method to the click event on the button.

Multiple Div Fade In/Out On

I have three divs, each containing multiple images.
There are also three buttons on the page.
I would like to create an effect where clicking on each button fades in the corresponding div and fades out the other two divs.
I have tried to follow code posted previously for similar effects, but have been unsuccessful and am hoping for some help from those who have more skill than I do! Thanks, Ross
The HTML is as follows;
<div id="GROUP-Join">
<img class="CentreBox" src="images/CentreBox.png"
width="487" height="173">
<img id="TitleOne" src="images/TitleOne.png"
width="339" height="19">
<img id="TitleTwo" src="images/TitleTwo.png"
width="143" height="14">
<body onLoad="focus();signup.email.focus()"></body>
<form method="post" name="signup" action="signup.php">
<input id="EmailAddress" type="text" name="email"
placeholder="e-mail" style="color: #000000;
font-family: 'Arial'; font-size: 20px; background-color:transparent;
border:hidden;" size="24" maxlength="49">
<input id="Go" type="image" name="submit" src="images/Go.png"
alt="submit" value="GO">
</form>
</div>
<div id="GROUP-About">
<img class="CentreBox" src="images/CentreBOX.png"
width="487" height="173">
<img id="AboutHead" src="images/AboutHead.png"
width="132" height="19">
<img id="JumpAround" src="images/JumpAround.png"
width="379" height="33">
<img id="Win" src="images/Win.png"
width="254" height="15">
</div>
<div id="GROUP-Contact">
<img class="CentreBox" src="images/CentreBOX.png"
width="487" height="173">
<img id="ContactHeading" src="images/ContactHead.png"
width="124" height="19">
<img id="Email" src="images/e-mail.png"
width="24" height="17">
<img id="Twitter" src="images/tw.png"
width="24" height="20">
<img id="fb" src="images/fb.png"
width="10" height="21">
</div>
<button id="button1">Join</button>
<button id="button2">About</button>
<button id="button3">Contact</button>

I'm not sure this is what you're meaning, but this will fade in each corresponding div and fade out the other two.
<script type="text/javascript">
$(document).ready(function () {
$('#btn1').click(function () {
$('#div1').fadeIn();
$('#div2').fadeOut();
$('#div3').fadeOut();
});
$('#btn2').click(function () {
$('#div1').fadeOut();
$('#div2').fadeIn();
$('#div3').fadeOut();
});
$('#btn3').click(function () {
$('#div1').fadeOut();
$('#div2').fadeOut();
$('#div3').fadeIn();
});
});
</script>
And the markup:
<div>
<div id="div1">
hello
</div>
<div id="div2">
hello 2
</div>
<div id="div3">
hello 3
</div>
<div>
<input type="button" id="btn1" />
<input type="button" id="btn2" />
<input type="button" id="btn3" />
</div>
</div>
The jquery fadeIn and fadeOut functions also have callbacks, so you could also do:
$('#div2').fadeOut(100,
function() { $('#div3').fadeOut(100,
function() { $('#div1').fadeIn(100);
});
});

Check this FIDDLE
This script should get the work done for you
$(function(){
$('button').on('click', function() {
var btnText = $(this).text();
$('div').fadeOut('slow');
$('#GROUP-'+btnText).fadeIn('slow');
});
});​

When you run an effect in jQuery such as fadeIn, you can provide a callback so that you can perform actions once that effect has completed. For instance, in your case:
$('#button1').click(function() {
$('#GROUP-Contact').fadeOut(500);
$('#GROUP-About').fadeOut(500, function() {
$('#GROUP-Join').fadeIn(500);
});
});
This is my best guess of what you are looking for without seeing any JS code.

how to display some information of image in another div by clickin on image with jQuery?

how to display some information of image in another div by clicking on image and information should be shown/hidden as clicking on this image.
$(document).ready(function () {
$(".cell").click(function () {
$(this).find("span").toggle("slow");
})
});
<div class="cell">
<div class="inner">
<span style="display:none;"> <img src="Images/sachin.jpg" alt="" width="180" height="180" /></span> <span class="name">Sachin Tendulkar</span>
<input type="hidden" class="friend_id" value="22 " />
</div>
</div>
I want that name displayed in another div when i click on particular image

If I'm understanding correctly, I think what you're asking is for the name to be displayed when you click on its image?
$(document).ready(function () {
$(".inner>img").click(function () {
$(this).parent().find("span").toggle("slow");
})
});
​<div class="cell">
<div class="inner">
<img src="Images/sachin.jpg" alt="" width="180" height="180" />
<span class="name" style="display: none;">Sachin Tendulkar</span>
<input type="hidden" class="friend_id" value="22 " />
</div>
</div> ​​​​​​​​​​​​​
Take notice of the reformatted html that removes the span around the image (it's not necessary) and the style attributes of your image and name span.

Try:
$(.cell).click(function() {
$(this).toggle("slow");
$(otherDiv).html( $(this).find('span.name').html() );
// other processing ...
});
But this is for your current code, which should be cleaned up a bit. So see below.
You shouldn't need a span to wrap your image. I would try something more along the lines of:
<div class="cell">
<div class="inner">
<img src="Images/sachin.jpg" data-name="Sachin Tendulkar" alt="" />
<input type="hidden" name="22" class="friend_id" value="22" />
</div>
</div>
Along with:
$('.cell').click(function() {
var img = $(this).find('img');
$(img).toggle('slow');
$(otherDiv).html( $(img).attr('data-name') );
// other processing ...
});