I have a this html page, Whenever the element with class name FreeSeat is clicked I want to change the colour of that div element.Below is my html page
<html>
<head>
<title>
QuickBus
</title>
<link type="text/css" rel="stylesheet" href="Seat.css">
</head>
<body>
<div id="Bus">
<div class="Row">
<div class="FreeSeat" ></div>
<div class="FreeSeat" ></div>
<div class="ResSeat" ></div>
<div class="ResSeat" ></div>
<div class="ResSeat" ></div>
</div>
</div>
<body>
</html>
It will be very helpful if anyone can help me out with this .
Considering that you want to use pure JS and not any library, you'd have to manually add event listeners to your classes.
And it has been solved for a similar problem here
var freeclass = document.getElementsByClassName("FreeSeat");
var myFunction_Free = function() {
this.style.color = "blue";
}
for(var i=0;i<freeclass.length;i++){
freeclass[i].addEventListener('click', myFunction_Free, false);
}
But for your case, here's a working fiddle
JQuery is amazing for these sorts of things.
Say you have a div with id 'box1'
<div id='box1'></div>
Style it with css
#box1 {
width:100px;
height:100px;
background-color:white;
border:1px solid black;
}
Using JQuery, you can make this call:
$( "#box1" ).click(function() {
$('#box1').css('background-color', 'red');
});
And now whenever your div is clicked, the colour will change, you can customise this however much you like.
Here is a JSFiddle demo.
Also, since you didn't specify exactly what you want to change the colour of, in my example jquery, it is telling the browser that when a div with an id of box1is clicked, change the background-color of the div with an id of box1, you can change anything though.
If you have a <p> tag you can change that too when the div is clicked, hope this helped!
You can use the following method to change the background color of an element by class:
const free_seat = document.getElementsByClassName('FreeSeat');
free_seat[0].style.backgroundColor = '#ff0';
Each element can be referenced by its index:
free_seat[0] // first div
free_seat[1] // second div
Therefore, we can create a function that will be called whenever the click event is delivered to the target:
const change_color = () => {
this.style.backgroundColor = '#ff0';
};
for (let i = 0; i < free_seat.length; i++) {
free_seat[i].addEventListener('click', change_color);
}
Note: You can also use document.querySelectorAll('.FreeSeat') to obtain a NodeList of elements of a certain class.
You can use simply the css focus pseudo-class for this:
#foo:focus {
background-color:red;
}
<div id="foo" tabindex="1">hello world!</div>
Dont forget to set the tabindex.
Related
I have a task where Jquery is not working, so I need a workaround to perform an add class event to child element of a div upon click event.
How do I go about that.
The Jquery for that purpose would be
$('.wpb_vc_column').click(function(e) {
alert();
e.preventDefault();
$(this).find('.vc_controls').addClass('show-controls');
});
.show-controls {
color: red
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="wpb_vc_column">
<div class="vc_controls">SomeThing</div>
</div>
Its basically a wordpress backend thing which need to be workable on mobile devices.
Regards
You can use querySelectorAll() to select all the elements with class wpb_vc_column and associate the click event to each element. Then click on these element will find the child elements with class vc_controls and add the class to it.
function clickedColumn(e){
e.preventDefault();
if(this.querySelector('.vc_controls')){
this.classList.add('show-controls');
}
}
document.querySelectorAll('.wpb_vc_column').forEach(function(el){
el.addEventListener('click', clickedColumn);
});
.show-controls{
color:red;
}
<div class="wpb_vc_column">
<div class="vc_controls">SomeThing 1</div>
<div class="vc_controls">SomeThing 2</div>
</div>
var myEle = document.getElementsByClassName('vc_controls');
myEle.className = "show-controls";
make use of querySelector method and and search for child in parent element
el.querySelector("#child").className = 'show-controls';
or
el.querySelector('.vc_controls').className = 'show-controls';
function changeClass(element){
var get_vc_controls=element.getElementsByClassName('vc_controls');
get_vc_controls[0].className='show-controls';
}
.show-controls {
color: red
}
<div class="wpb_vc_column" style="border:1px solid;" onclick="changeClass(this)">
<div class="vc_controls">SomeThing</div>
</div>
Trying to implement a very simple feature, using only JavaScript without jQuery. I want the background of the HTML div with id='tags' to change, when I click on it.
document.getElementById('tags').addEventListener('onclick', function() {
this.style.backgroundColor = 'red';
});
<body>
<div id="tags">Item1</div>
<div id='tags'>Item2</div>
<div id='tags'>Item3</div>
</body>
Identiifiers in HTML must be unique, Use a common CSS class to instead.
Use querySelectorAll() to target them, as it will return a list, iterate it and bind event handlers
remove prefixed "on"
document.querySelectorAll('.tags').forEach(function(element) {
element.addEventListener('click', function() {
this.style.backgroundColor = 'red';
});
})
<div class="tags">Item1</div>
<div class='tags'>Item2</div>
<div class='tags'>Item3</div>
A few issues here:
your script is (or was before you edited the question) executing before the <div> elements are added to the document; the <script> needs to be placed after the <div>s in your HTML source code.
you can't have multiple elements with the same id. use class="tags" instead.
the event is "click" not "onclick"
Here's what i'd do instead:
<body>
<div class="tags">Item1</div>
<div class="tags">Item2</div>
<div class="tags">Item3</div>
<script>
for (let x of document.getElementsByClassName('tags')) {
x.addEventListener('click', function() {
this.style.backgroundColor = 'red';
});
}
</script>
</body>
Okay, I think my head is being dense. But I cant seem to get this to work. I'm doing a website for a photographer, and he wants to be able to let a user change the frame that they would like from a choice of 3. Easiest way I thought to do this was to create a div, and then have it change class based on a button click. So it would change the background image. However I cant get it to do this. Any ideas would be well received, as I'm guessing theres probably a javascript version that does it quicker and easier.
<html>
<head>
<title>Untitled</title>
<style>
#pictureframe {
width:200px;
height:200px;
}
.wooden {
background-image:url(frame.png);
}
.plain {
background-image:url(clear.png);
}
.black {
background-image:url(black.png);
}
</style>
</head>
<body>
<div id="pictureframe">
</div>
<div style="height:20px;border:1px solid #617779;width:90px;text-align:center;background-color:white;" onclick = "pictureframe.style.className = 'wooden'">Make it wood</div>
<br>
<div style="height:20px;border:1px solid #617779;width:90px;text-align:center;background-color:white;" onclick = "pictureframe.style.className = 'clear'">Make it Frameless</div>
<br>
<div style="height:20px;border:1px solid #617779;width:90px;text-align:center;background-color:white;" onclick = "pictureframe.style.className = 'wooden'">Make it Black Bezel</div>
</body>
className is not part of the style object in the DOM element, but a direct property:
document.getElementById("pictureframe").className = 'wooden';
It's not
pictureframe.style.className = ...
but
pictureframe.className = ...
DEMO
Try this:
onclick ="pictureframe.className = 'wooden'"
If you want to use some other class for style, than you probably need to go with something like this:
function replaceClass(className) {
$('#pictureframe').removeClass('plain black wooden');
return $('#pictureframe').addClass(className);
}
This way you can keep class with styles http://jsfiddle.net/NjTea/5/
I would like to add animation effect to following code when showing tree items.
I know that jquery has slide functions, and css has "transition", but not sure how to apply these to my code. Any ideas?
<head>
<script language="JavaScript">
function show(){
var elements = document.getElementsByClassName("label");
for(var i = 0, length = elements.length; i < length; i++) {
elements[i].style.display = 'block';
}
}
</script>
<style>
.label {
-webkit-padding-start: 20px;
display: none;
}
</style>
</head>
<body>
<div>
<div onclick="show()">1st Row</div>
<div>
<div class="label">First</div>
<div class="label">Second</div>
<div class="label">Third</div>
</div>
<div>2nd Row</div>
</div>
</body>
If you are planning to use jQuery then you can use slideDown and slideUp method to show/hide elements with animation. There is slideToggle method which alternatively show/hides the element with animcation. You can modify your show method as below
Working demo
function show(obj){
var $this = $(obj);//Here obj points to the element clicked
//Now you have to show/hide the next sibling of the element clicked
//We will use next() method which gives the next sibling of element
//And then call slideToggle on it to show/hide alternatively
$this.next().slideToggle();
}
Change in the markup
<div onclick="show(this)">1st Row</div>
function show() {
$('.label').slideDown();
}
This selects all elements with the .label class and slides them into view. There is also a .fadeIn() function.
Also, you can attach click handlers by selectors (like an id or class):
<div>
<div class="row">1st Row</div>
<div>
<div class="label">First</div>
<div class="label">Second</div>
<div class="label">Third</div>
</div>
<div class="row">2nd Row</div>
</div>
Notice I removed the onClick="" statement and added a class to the row div. Then you can select the element you want to attach the click event to and keep all the code in one place:
$('.row').bind('click', function () {
$(this).next().find('.label').slideToggle();
});
This JavaScript above adds a click handler to all elements with the row class and toggles the display of all of the elements with the label class in the next element.
Here is a jsfiddle: http://jsfiddle.net/L34g3/.
I have a a link that looks similar to this
Blog
As you can the link has an ID of 'blog' what I want to do is to create an div on the fly with the ID from the link that was clicked so if the 'blog' is clicked, then the markup would be
<div id="blog">
<!--some content here-->
</div>
Like wise if for instance the news link is clicked then I would like,
<div id="news">
<!--some content here-->
</div>
to be created in the markup if this possible? and how Im pretty new to jQuery.
Try this:
$("a").click(function(){
$("#wrapper").append("<div id=" + this.id + "></div>");
});
Not tested, should work ;)
where: #wrapper is parent element, work on all a as you see.
You will need to give the div a different ID. Perhaps you could give it a class instead:
$("#blog").click(function() {
$(this).after("<div class='blog'>...</div>");
return false;
});
That's just one of many ways to create a div. You probably also want to avoid duplicates however in which case, use something like this:
$("#blog").click(function() {
var content = $("#blog_content");
if (content.length == 0) {
content = $("<div></div>").attr("id", "blog_content");
$(this).after(content);
}
content.html("...");
return false;
});
As for how to handle multiple such links I would do something like this:
Blog
News
Weather
<div id="content"></div>
with:
$("a.content").click(function() {
$("#content").load('/content/' + this.id, function() {
$(this).fadeIn();
});
return false;
});
The point is this one event handler handles all the links. It's done cleanly with classes for the selector and IDs to identify them and it avoids too much DOOM manipulation. If you want each of these things in a separate <div> I would statically create each of them rather than creating them dynamically. Hide them if you don't need to see them.
Try This :
<a id="blog">Blog</a>
<a id="news">news</a>
<a id="test1">test1</a>
<a id="test2">test2</a>
$('a').click(function()
{
$('<div/>',{
id : this.id,
text : "you have clicked on : " + this.id
}).appendTo("#" + this.id);
});
First of all you should not make 2 elements with same ID. At your example a and div will both have id="blog". Not XHTML compliant, plus might mess up you JS code if u refernce them.
Here comes non-jquery solution (add this within script tags):
function addDiv (linkElement) {
var div = document.createElement('div');
div.id = linkElement.id;
div.innerHTML = '<!--some content here-->';
document.body.appendChild(div); // adds element to body
}
Then add to HTML element an "event handler":
Blog
This question describes how to create a div. However, you shouldn't have two elements with same IDs. Is there any reason why you can't give it an id like content_blog, or content_news?
Unfortunately if you click on a link the page you go to has no idea what the idea of the link you clicked was. The only information it knows is what's contained in the URL. A better way to do this would be to use the querystring:
Blog
Then using the jQuery querystring plugin you could create the div like:
$("wrapper").add("div").attr("id", $.query.get("id"));
You shouldn't have elements in your page with the same ID. Use a prefix if you like, or perhaps a class.
However, the answer is as follows. I am imagining that your clickable links are within a div with the ID "menu", and your on-the-fly divs are to be created within a div with the ID "content".
$('div#menu a').click(function(){
$('div#content').append('<div id="content_'+this.id+'"><!-- some content here --></div>');
});
Any problems, ask in the comments!
Also the following statement is available to create a div dynamically.
$("<div>Hello</div>").appendTo('.appendTo');
Working fiddle: https://jsfiddle.net/andreitodorut/xbym0bsu/
you can try this code
$('body').on('click', '#btn', function() {
$($('<div>').text('NewDive').appendTo("#old")).fadeOut(0).fadeIn(1000);
})
#old > div{
width: 100px;
background: gray;
color: white;
height: 20px;
font: 12px;
padding-left: 4px;
line-height: 20px;
margin: 3px;
}
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Test</title>
<link rel="stylesheet" href="./index.css">
</head>
<body>
<div>
<!-- Button trigger modal -->
<button type="button" id="btn">Create Div</button>
<div id="old">
</div>
</div>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
</body>
</html>