show div where its element has attribute title = value - javascript

im trying to show a "<div class="bundle--form">" where his child has tag with attr. title = productTrim variable.
here is a demo:
$(function() {
$('.icon--drop').click(function (event) {
// The URL changed...
console.log("url changed");
var productName = $('.super-color-variant[style="display: block;"] .product--title').text();
var productTrim = $.trim(productName);
var BundleName = $(`.bundle--product-name a[title='${productTrim}']`).attr('title');
console.log(productTrim);
console.log("and");
console.log(BundleName);
if(productTrim === BundleName){
$('.bundle--form').hide()
$(".bundle--form").find(`div a[title='${productTrim}']`).show();
console.log("are same")
}else{
$('.bundle--form').hide()
console.log("are not same")
}
});
});
svg#Ebene_1{
width: 50px;
height: 50px;
}
.demo{
padding: 10px;
border: 2px solid red;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div class="super-color-variant" data-super-variant="magenta" style="display: block;">
<h1 class="product--title" itemprop="name">
Toner magenta ersetzt Lexmark 700X3
</h1>
</div>
<a href="#magenta" class="color-drop-link selected _1" data-super-variant="magenta" title="black">
<i class="icon--drop magenta">
<svg id="Ebene_1" data-name="Ebene 1" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 119.39 130">
<path class="cls-1" d="M75.67,41.8,58.87,10.42,42.06,41.8C33.2,58.43,24.75,70.71,24.75,86.24c0,20.13,17.65,33.35,34.12,33.35S93,106.32,93,86.24C93,70.71,84.54,58.43,75.67,41.8Z"></path>
</svg>
</i>
</a>
<div class="bundle--form">
<div class="demo">
<div class="bundle--product-name">
1x Toner magenta ersetzt Lexmark 700X3
</div>
</div>
</div>
<div class="bundle--form">
<div class="demo">
<div class="bundle--product-name">
1x original yellow ersetzt Lexmark 700X7
</div>
</div>
</div>
basically, when you click on the color drop, only the bundle--form that matches the title should be shown. how can I do that? I've tried many ways, can anyone link an article or give a suggestion? jq or js no problem, thanks :).


You tell jQuery to show the a tag within a .bundle--form. But the .bundle--form is not shown and thus the browser will not render anything in it.
I believe you meant to show the .bundle-form where the a tag with that specific title is in.
I changed this:
$(".bundle--form").find(`div a[title='${productTrim}']`).show();
to this:
$(`.bundle--form a[title='${productTrim}']`).closest('.bundle--form').show();
jQuery uses the recently selected element. What you call show on was the a tag, when in fact you probably wanted the closest .bundle--form.
See updated snippet below.
$(function() {
$('.icon--drop').click(function (event) {
// The URL changed...
console.log("url changed");
var productName = $('.super-color-variant[style="display: block;"] .product--title').text();
var productTrim = $.trim(productName);
var BundleName = $(`.bundle--product-name a[title='${productTrim}']`).attr('title');
console.log(productTrim, "and", BundleName);
if(productTrim === BundleName){
$('.bundle--form').hide()
$(`.bundle--form a[title='${productTrim}']`).closest('.bundle--form').show();
console.log("are same")
}else{
$('.bundle--form').hide()
console.log("are not same")
}
});
});
svg#Ebene_1{
width: 50px;
height: 50px;
}
.demo{
padding: 10px;
border: 2px solid red;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div class="super-color-variant" data-super-variant="magenta" style="display: block;">
<h1 class="product--title" itemprop="name">
Toner magenta ersetzt Lexmark 700X3
</h1>
</div>
<a href="#magenta" class="color-drop-link selected _1" data-super-variant="magenta" title="black">
<i class="icon--drop magenta">
<svg id="Ebene_1" data-name="Ebene 1" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 119.39 130">
<path class="cls-1" d="M75.67,41.8,58.87,10.42,42.06,41.8C33.2,58.43,24.75,70.71,24.75,86.24c0,20.13,17.65,33.35,34.12,33.35S93,106.32,93,86.24C93,70.71,84.54,58.43,75.67,41.8Z"></path>
</svg>
</i>
</a>
<div class="bundle--form">
<div class="demo">
<div class="bundle--product-name">
1x Toner magenta ersetzt Lexmark 700X3
</div>
</div>
</div>
<div class="bundle--form">
<div class="demo">
<div class="bundle--product-name">
1x original yellow ersetzt Lexmark 700X7
</div>
</div>
</div>

Related

replace a div hidden intially by a click on a link from 3 other 3 linkes(3 other divs)

Hi I want to replace a div that is already displayed with another Hidden div choosed when i click on one of them(3 other divs(hidden) initially). the 4 links related to the 4 divs and in same way i can do that in each link clicked. below is the code:
<script type="text/javascript">
#4 Id of divs
var models = document.getElementById('models')
var geometry = document.getElementById('geometry')
var assembly = document.getElementById('assembly')
var loads = document.getElementById('loads')
#4 ID OF links (related to each div)
var models1 = document.getElementById('models1')
var geometryy = document.getElementById('geometryy')
var assemblyy = document.getElementById('assemblyy')
var loads1 = document.getElementById('loads1')
geometryy.addEventListener("click", function () {
models.style.display = "none"
loads.style.display = "none"
assembly.style.display = "none"
geometry.style.display = "block"
})
assemblyy.addEventListener("click", function () {
geometry.style.display = "none"
models.style.display = "none"
loads.style.display = "none"
assembly.style.display = "block"
})
loads1.addEventListener("click", function () {
geometry.style.display = "none"
models.style.display = "none"
assembly.style.display = "none"
loads.style.display = "block"
})
models1.addEventListener("click", function () {
models.style.display = "block"
geometry.style.display = "none"
assembly.style.display = "none"
loads.style.display = "none"
})
</script>
CSS:
<style>
#loads {
display: none;
}
#geometry {
display: none;
}
#assembly {
display: none;
}
#models {
display: block;
}
</style>
some Html code about the 4 divs:
<form action="{% url 'results' %}" method="post" id="gallery" novalidate onsubmit="return mySubmitFunction(event)">
<div style="padding-top: 10px; margin-left:138px;" class="parallax-window tm-section tm-section-gallery tm-flex background " id="models" >
<div style=" background-color: white; font-size:89%; width: 62rem; height: 32rem; margin-left:2.5rem; ">
<div class="card-warning" style="background-color: #C0C0C0;">
<nav class="navbar">
<a class="floated" style="font-weight: bolder; border-style: solid;" id="models1">Models</a>
Geometry
Assembly
Loads
</nav>
</div>
.......... some fields related to the div id="models"
</div>
</div>
----------------About the second div
<div style="padding-top: 10px;" class="parallax-window tm-section tm-section-gallery tm-flex" id="geometry" >
<div style=" background-color: white; font-size:89%; width: 62rem; height: 32rem; margin-left:2.5rem; ">
<div class="card-warning" style="background-color: #C0C0C0;">
<nav class="navbar">
Models
<a class="floated" style=" font-weight: bolder; border-style: solid;">Geometry</a>
Assembly
Loads
</nav>
</div>
<div style="display: flex;">
<div>
<img style="height: 372px; width:270px; margin-left: 25px;">
</div>
<div style="line-height: 0.001; margin-left: 10px; margin-top: 12px;">
------ some code for some fields
</div>
</div>
...... </div>
---- </div>
----------------About the third div
<div style="padding-top: 10px;" class="parallax-window tm-section tm-section-gallery tm-flex" id="assembly" >
<div style="background-color: white; font-size:89%; width: 62rem; height: 32rem; margin-left:2.5rem; ">
<div class="card-warning" style="background-color: #C0C0C0;">
<nav class="navbar">
Models
Geometry
<a class="floated" style=" font-weight: bolder; border-style: solid;">Assembly</a>
<a href="#loads" class="floated" style=" font-weight: bolder;" id="loads3" >Loads</a>
</nav>
</div>
<div style="display: flex;">
<div>
<img style="height: 372px; width:270px; margin-left: 25px;">
</div>
<div style="line-height: 0.001; margin-left: 10px; margin-top: 12px;">
------ some code for some fields
</div>
</div>
...... </div>
---- </div>
----------------About the fourth div
<div style="padding-top: 10px; " class="parallax-window tm-section tm-section-gallery tm-flex" id="loads" >
<div style="background-color: white; font-size:89%; width: 62rem; height: 32rem; margin-left:2.5rem;">
<div class="card-warning" style="background-color: #C0C0C0;">
<nav class="navbar">
<a href="#models" class="floated" style="font-weight: bolder;" >Models</a>
Geometry
Assembly
<a style=" font-weight: bolder; border-style: solid;">Loads</a>
</nav>
</div>
<div style="display: flex;">
<div>
<img style="height: 372px; width:270px; margin-left: 25px;">
</div>
<div style="line-height: 0.001; margin-left: 10px; margin-top: 12px;">
------ some code for some fields
</div>
</div>
...... </div>
---- </div>
</form>
what i want :at first the "models" div is shown and the other 3 divs("geometry",assembly","loads") are hidden , so i want when i click on "geometry" div , the first div "models" become hidden and the other divs ("assembly" and "loads" still hidden) and so on if click on assembly... i i want to apply that on every div(because evry div has the 4 links)
But it doesn't give me any result!

<html>
<head>
<style>
#div2, #div3, #div4{
display: none;
}
</style>
</head>
<body>
<div style="background-color: #C0C0C0 ;padding-top: 10px;width: 62rem; height: 32rem; ">
<div>
<a href="#models" class="geo wy" style="border-style: solid;" >Models</a>
Geometry
Assembly
Loads
</div>
<div id="div1" class="wy hid">
Models and other stuffs here
</div>
<div id="div2" class="pk hid">
Geometry and other stuffs here
</div>
<div id="div3" class="fk hid">
Assembly and other stuffs here
</div>
<div id="div4" class="gk hid">
Loads and other stuffs here
</div>
</div>
<script>
window.onload = btn() ;
function btn() {
var query = document.querySelectorAll(".geo") ; //No of hrefs
var pts = document.querySelectorAll(".hid"); //No of divs
for(var i=0;i<query.length;i++){
query[i].addEventListener("click", function() { //know which href is being clicked currently
var cla = this.getAttribute('class').split(' ')[1] ; //get second class of current href which would be wy, pk, fk, gk respectively.
var point = document.querySelectorAll("."+cla)[1]; //selecting the div as, [0] would select the href
for(var j=0;j<pts.length;j++){
pts[j].style.display = "none"; //hid all the div
query[j].style.border= "none"; //remove all the href border
}
this.style.border= "solid"; //Add currently clicked href border
point.style.display = "block"; //display currently clicked div
})
}
}
</script>
</body>
</html>
Sorry the id and classes name are given random i am not good at naming. Please don't hesitate to ask if you are confused

How to make it so that previous answer is displayed when number is clicked after equals in js calculator?

I need to make it so that the previous result is displayed when the user presses a num after pressing equals... how do I do it? And just fyi I am just helping my friend make the code for his calculator clean - his was very messy - if you want I can show you his code as well.
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<body>
<div class='container'>
<div class='answer'>
<p class='returnAnswer'>Answer Will Come Here</p>
</div>
<div class='buttonDiv'>
<div class='button'>0</div>
<div class='button'>1</div>
<div class='button'>2</div>
<div class='button'>3</div>
<div class='button'>4</div>
<div class='button'>5</div>
<div class='button'>6</div>
<div class='button'>7</div>
<div class='button'>8</div>
<div class='button'>9</div>
<div class='equals'>=</div>
<div class='button'>c</div>
<div class='button'>+</div>
<div class='button'>-</div>
<div class='button'>x</div>
<div class='button'>÷</div>
<div class='button'>.</div>
<div class='button'>%</div>
</div>
</div>
</body>
</html>
<script type="application/javascript" src="/share.js"></script>
<script>
var eq = "";
var ans = eval(eq);
$('.button').click(function() {
eq += $(this).text();
$('.returnAnswer').text(eq);
});
$('.equals').click(function() {
$('.returnAnswer').text(ans);
});
</script>

This was a fun thing to do.... Here is what I have done to your code
Added some styles to the button (not important, but makes it easier to click)
Added a class named num to each number button, that will be used to reset the display if any button is clicked following '=' button.
Removed 'equals' class from '=' button and added it as an ID
Added code to clear the display when 'C' is clicked
Changed buttons 'x' to ' * ' and '÷' to '/' as otherwise eval function will not work
Changed back to 'x' and '÷', and added 2 lines inside equals.clicked to replace these with correct operators
Check the Code snippet
var eq = "";
var ans = eval(eq);
var equalsCliked = false;
$('.button').not("#equals, #cbutton").click(function () {
if ($(this).hasClass('num') && equalsCliked)
eq = "";
eq += $(this).text();
$('.returnAnswer').text(eq);
equalsCliked = false;
});
$('#equals').click(function () {
equalsCliked = true;
eq = eq.split("÷").join("/");
eq = eq.split("x").join("*");
ans = eval(eq);
eq = ans;
$('.returnAnswer').text(ans);
});
$('#cbutton').click(function () {
equalsCliked = false;
eq = "";
ans = eval(eq);
//eq = ans;
$('.returnAnswer').text("");
});
.button {
border: 1px solid gray;
padding: 8px;
margin: 3px 3px;
float: left;
cursor: pointer;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<body>
<div class='container'>
<div class='answer'>
<p class='returnAnswer' style="width:330px; padding: 10px; min-height:20px; border: 1px solid gray; border-radius: 2px;">Answer Will Come Here</p>
</div>
<div class='buttonDiv' style="background-color:yellow; float:left; width: 330px;">
<div class='button num'>0</div>
<div class='button num'>1</div>
<div class='button num'>2</div>
<div class='button num'>3</div>
<div class='button num'>4</div>
<div class='button num'>5</div>
<div class='button num'>6</div>
<div class='button num'>7</div>
<div class='button num'>8</div>
<div class='button num'>9</div>
<div id="equals" class='button'>=</div>
<div id="cbutton" class='button'>C</div>
<div class='button'>+</div>
<div class='button'>-</div>
<div class='button'>x</div>
<div class='button'>÷</div>
<div class='button'>.</div>
<div class='button'>%</div>
</div>
</div>
</body>

How to save the details of range slider in the local storage?

I am replicating this webpage https://www.modsy.com/project/furniture and I wrote the code On every slide there will be changing of image and phrase like that there are three phrases and images now I want to store the image and phrase in the local storage what the user has finalized
My html code is:
<div class="image mt-3 mb-3" id="sliderImages">
<img src="../static/images/1.jpg" width="400" height="180">
<img src="../static/images/2.jpg" width="400" height="180">
<img src="../static/images/3.jpg" width="400" height="180">
</div><br>
<div class="rangeslider">
<input type="range" min="1" max="3" value="1" class="myslider" id="sliderRange">
<div id="sliderOutput">
<div class="container">
<div class="row mt-4">
<div class="col-4">
<h6 class="display-6">Starting From Scratch</h6>
<p> I'm designing the room </p>
</div>
<div class="col-4">
<h6 class="display-6">Somewhere in Between</h6>
<p>I'm designing around a few pieces I already own</p>
</div>
<div class="col-4">
<h6 class="display-6">Mostly Furnished</h6>
<p>I want to put the finishing touches on my room</p>
</div>
</div>
</div>
<div class="container">
<div class="row mt-4">
<div class="col-4">
<h6 class="display-6">Starting From Scratch</h6>
<p> I'm designing the room </p>
</div>
<div class="col-4">
<h6 class="display-6">Somewhere in Between</h6>
<p>I'm designing around a few pieces I already own</p>
</div>
<div class="col-4">
<h6 class="display-6">Mostly Furnished</h6>
<p>I want to put the finishing touches on my room</p>
</div>
</div>
</div>
<div class="container">
<div class="row mt-4">
<div class="col-4">
<h6 class="display-6">Starting From Scratch</h6>
<p> I'm designing the room </p>
</div>
<div class="col-4">
<h6 class="display-6">Somewhere in Between</h6>
<p>I'm designing around a few pieces I already own</p>
</div>
<div class="col-4">
<h6 class="display-6">Mostly Furnished</h6>
<p>I want to put the finishing touches on my room</p>
</div>
</div>
</div>
</div>
<div class="row mb-3 mt-3">
<div class="col-4 mr-5">
« Home
</div>
<div class="col-4 ml-5">
Next » </div>
</div>
</div>
My CSS code is:
<style>
.rangeslider {
width: 50%;
margin: 0 auto;
position: absolute;
}
.myslider {
-webkit-appearance: none;
background: white;
width: 100%;
height: 20px;
opacity: 0.8;
margin-top: 180px;
}
.myslider::-webkit-slider-thumb {
-webkit-appearance: none;
cursor: pointer;
background: #000080;
width: 33%;
height: 20px;
}
.col-4 {
text-align: center;
}
.myslider:hover {
opacity: 1;
}
.image {
position: relative;
width: 400px;
margin: 0 auto;
}
.image>img {
position: absolute;
display: none;
}
.image>img.visible,
.image>img:first-child {
display: block;
}
#sliderOutput>div {
display: none;
}
#sliderOutput>div.visible,
#sliderOutput>div:first-child {
display: block;
}
#p1{
height: 10px;
}
</style>
My JS code is:
<script>
window.addEventListener('load', function() {
var rangeslider = document.getElementById("sliderRange");
var output = document.getElementById("sliderOutput");
var images = document.getElementById("sliderImages");
rangeslider.addEventListener('input', function() {
for (var i = 0; i < output.children.length; i++) {
output.children[i].style.display = 'none';
images.children[i].style.display = 'none';
}
i = Number(this.value) - 1;
output.children[i].style.display = 'block';
images.children[i].style.display = 'block';
});
});
</script>
My main requirement if the slider is in the first that phrase and image should be stored in local storage like that if it is in second that details should store.

There is no enough details about what json you want to store in the localStorage so that's why i am giving you the basic idea of how you can store a json in localStorage.
Basically you can't store json in localStorage directly but you can store that json in form of a stringand then converting that string(json) into json. Here is the basic example :
// setting json to localStorage
var jsonToBeStoredInLocalStorae = {
sliderImages = [
{path : 'image-path-here'},
{path : 'image-path-here'}
],
phrase : 'your image phrase'
};
localStorage.setItem('slider_json',JSON.stringify(jsonToBeStoredInLocalStorae ));
When you want to get that json from localStorage so you will do like this
//Here you are getting that json in `string` form from `localStorage` and parsing it to `json`
var localStorageJson = JSON.parse(localStorage.getItem('slider_json'));

In localStorage you can only save text strings, so if you want to save it is only one value per record, you insert a name and value to localStorage, but if you want to save an object, you must transform it to a text string with the function JSON.stringify

Creating a star rating from an image based on a float number?

recently I have wanted to turn a number into a star rating and I stumbled upon this post here: https://stackoverflow.com/a/1987545/1871869 which is exactly what I wanted to do. I have followed this explanation but I can't seem to get it to work on my local environment, and I was wondering if someone could help me out. Here is my attempt:
$.fn.stars = function() {
return $(this).each(function() {
// Get the value
var val = parseFloat($(this).html());
// Make sure that the value is in 0 - 5 range, multiply to get width
var size = Math.max(0, (Math.min(5, val))) * 16;
// Create stars holder
var $span = $('<span />').width(size);
// Replace the numerical value with stars
$(this).html($span);
});
}
$(function() {
console.log("Calling stars()");
$('.results-contents span.stars').stars();
});
.results {
font-size: 0;
padding-bottom: 16px;
}
.results-content {
font-size: 13px;
display: inline-block;
margin-left: 20px;
vertical-align: top;
}
.results .results-content span.stars span.stars span {
background: url('/resources/graphics/stars-icons.png') 0 -36px repeat-x;
width: 175px;
height: 80px;
}
.results .results-content span.stars {
max-width: 80px;
background-position: 0 0;
}
<script type="text/template" id="results-template">
<div class="results">
<div class="results-content">
<span class="stars">4.0</span>
</div>
</div>
</script>
Image of stars:
What I wanted to do was to simply have the empty stars show, and then based on the rating, show the orange stars on top of the empty stars so that I can show full and half star ratings. However, all I get is a number to show up. My console.log above seems to be called but it seems like the actual rendering of the image and calculation of the star rating is not working. Any help would be appreciated. Thanks!

You had multiple issues from CSS styles being wrong to your selector being wrong. Below is not perfect, but it is rendering.
$.fn.stars = function() {
return this.each(function() {
// Get the value
var val = parseFloat($(this).html());
// Make sure that the value is in 0 - 5 range, multiply to get width
var size = Math.max(0, (Math.min(5, val))) * 36.5;
// Create stars holder
var $span = $('<span> </span>').width(size);
// Replace the numerical value with stars
$(this).empty().append($span);
});
}
$(function() {
console.log("Calling stars()");
$('.results-content span.stars').stars();
});
.results {
font-size: 0;
padding-bottom: 16px;
}
.results-content {
font-size: 13px;
display: inline-block;
margin-left: 20px;
vertical-align: top;
background: url('https://i.stack.imgur.com/rwkqF.png') 0 0 repeat-x;
width: 185px;
height: 35px;
}
.results .results-content span.stars span {
background: url('https://i.stack.imgur.com/rwkqF.png') 0 -36px repeat-x;
display: inline-block;
height: 35px;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="results">
<div class="results-content">
<span class="stars">0.0</span>
</div>
</div>
<div class="results">
<div class="results-content">
<span class="stars">0.5</span>
</div>
</div>
<div class="results">
<div class="results-content">
<span class="stars">1.0</span>
</div>
</div>
<div class="results">
<div class="results-content">
<span class="stars">1.5</span>
</div>
</div>
<div class="results">
<div class="results-content">
<span class="stars">2.0</span>
</div>
</div>
<div class="results">
<div class="results-content">
<span class="stars">2.0</span>
</div>
</div>
<div class="results">
<div class="results-content">
<span class="stars">2.5</span>
</div>
</div>
<div class="results">
<div class="results-content">
<span class="stars">3.0</span>
</div>
</div>
<div class="results">
<div class="results-content">
<span class="stars">3.5</span>
</div>
</div>
<div class="results">
<div class="results-content">
<span class="stars">4.0</span>
</div>
</div>
<div class="results">
<div class="results-content">
<span class="stars">4.5</span>
</div>
</div>
<div class="results">
<div class="results-content">
<span class="stars">5.0</span>
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Change Icon on click and add a css class through javascript

I'm trying to make a expandable h3. For that I'll have a "plus" image to click and when it's clicked has to change to a "minus" image and I need to add a css class to the h3 to show the content. I'll paste all the code below:
<div class="default">
[ManageBlog]
<div class="msearch-result" id="LBSearchResult[moduleid]" style="display: none">
</div>
<div class="head">
<h1 class="blogname">
[BlogName] <img src="/portals/40/Images/Train_Fitness_2015_S/images/plus_symbol.png" alt="Plus Button" id="ExpandBlogDescriptionImg"></h1> [RssFeeds]
<br style="line-height: 12px; clear: both" />
<h3 class="blogdescription">
[BlogDescription]</h3> [Author]
</div>
<br /> [Posts] [Pager]
</div>
<div style="clear: both"></div>
And here is the javascript:
jQuery(document).ready(function() {
$("#ExpandBlogDescriptionImg").click(function() {
var right = "https://train.fitness/portals/40/Images/Train_Fitness_2015_S/images/plus_symbol.png";
var left = "https://train.fitness/portals/40/Images/Train_Fitness_2015_S/images/minus_symbol.png";
element.src = element.bln ? right : left;
element.bln = !element.bln;
});
var img = $("#ExpandBlogDescriptionImg");
if (img.src = "https://train.fitness/portals/40/Images/Train_Fitness_2015_S/images/minus_symbol.png") {
$('.blogdescription').addClass("ExpandBlogDescriptionText");
} else {
$('.blogdescription').removeClass("ExpandBlogDescriptionText");
};
});

you can use .attr function of jquery to set image source like
$('.img-selector').attr('src','plusorminusimagepath.jpg');
and you can have a boolean flag to know if it is less or more

Here i was changing alt attribute of image tag on click. the same way you can change src
jQuery(document).ready(function() {
$("#ExpandBlogDescriptionImg").click(function() {
if ($(this).attr("alt") == "+") {
$(this).attr("alt", "-");
} else {
$(this).attr("alt", "+");
}
});
var img = $("#ExpandBlogDescriptionImg");
if (img.src = "https://train.fitness/portals/40/Images/Train_Fitness_2015_S/images/minus_symbol.png") {
$('.blogdescription').addClass("ExpandBlogDescriptionText");
} else {
$('.blogdescription').removeClass("ExpandBlogDescriptionText");
};
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="default">
[ManageBlog]
<div class="msearch-result" id="LBSearchResult[moduleid]" style="display: none">
</div>
<div class="head">
<h1 class="blogname">
[BlogName] <img alt="+" src="/portals/40/Images/Train_Fitness_2015_S/images/plus_symbol.png" alt="Plus Button" id="ExpandBlogDescriptionImg"></h1> [RssFeeds]
<br style="line-height: 12px; clear: both" />
<h3 class="blogdescription">
[BlogDescription]</h3> [Author]
</div>
<br />[Posts] [Pager]
</div>
<div style="clear: both"></div>

You should use a sprite image and CSS, else when you click and it will load another image, for some time between image would disappear.
HTML
<div class="head">
<h1 class="blogname">
[BlogName] <span class="plus icon"></span></h1>
[RssFeeds]
<br style="line-height: 12px; clear: both" />
<h3 class="blogdescription">
[BlogDescription]</h3>
[Author]</div>
<br />
CSS
.icon{
width:30px;
height:30px;
display:inline-block;
background-image:url(plus-minus-sprite-image.png);
}
.icon.plus{
background-position:20px center;
}
.icon.minus{
background-position:40px center;
}
JS
$('.icon').click(function(){
$(this).toggleClass("plus minus");
if($(this).hasClass("plus")){
$('.blogdescription').addClass("ExpandBlogDescriptionText");
}else{
$('.blogdescription').removeClass("ExpandBlogDescriptionText");
}
// Or $('.blogdescription').toggleClass("ExpandBlogDescriptionText");
});

$("#ExpandBlogDescriptionImg").click( function(e){
var right = "https://train.fitness/portals/40/Images/Train_Fitness_2015_S/images/plus_symbol.png";
var left = "https://train.fitness/portals/40/Images/Train_Fitness_2015_S/images/minus_symbol.png";
if($(e.currentTarget).attr('img') == left){
$(this).hide();
$(e.currentTarget).attr('img',right);
}else{
$(this).show();
$(e.currentTarget).attr('img',left);
}
});

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