Develop Reference

How to search for an element (with a variable) with JS/Jquery and add a class [closed]

Closed. This question is not reproducible or was caused by typos. It is not currently accepting answers.
This question was caused by a typo or a problem that can no longer be reproduced. While similar questions may be on-topic here, this one was resolved in a way less likely to help future readers.
Closed 3 days ago.
Improve this question
When the page loads, I would like to take the actual URL of the page, save it into a variable and then search with jQuery, an element with the same URL of the actual page. If jQuery finds that with the same href, then add a class to that element.
This is what I've actually:
$(function() {
var url = $(location).attr('href');
console.log (url);
$('a[href="${url}"]').addClass( "a-selected" );
});
I'm taking the actual URL correctly. And if I change a[href="${url}] to -> a[href="my-url.com/stacksoverflow"] , the class applies! But when I change to use the $url variable then the class is not appling

I need to change an img element's src using ${} with an entry but it doesn't recognize the ${} sign as an directory [closed]

Closed. This question is not reproducible or was caused by typos. It is not currently accepting answers.
This question was caused by a typo or a problem that can no longer be reproduced. While similar questions may be on-topic here, this one was resolved in a way less likely to help future readers.
Closed 5 months ago.
Improve this question
This is normal text : I need to change an image element's source using ${} with an entry but it doesn't recognize the $ sign as an directory.so it doesn't load any picture because it simply doesn't find a picture with name of "dice-${dicee}.jpg"
here is the code:
document.getElementsByClassName('btn--roll')[0].addEventListener('click',()=>{
const dicee = Math.trunc(Math.random()*6)+1;
diceElement.classList.remove('hidden');
diceElement.src = 'images/dice-${dicee}.jpg';
})

Interporlation only works inside template literals
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Template_literals

How to append data value to dynamically created div? [closed]

Closed. This question is not reproducible or was caused by typos. It is not currently accepting answers.
This question was caused by a typo or a problem that can no longer be reproduced. While similar questions may be on-topic here, this one was resolved in a way less likely to help future readers.
Closed 7 years ago.
Improve this question
I'm attempting to associate a data value with a div created dynamically, however I have not been able to get this to work. I've tried looking around online but can't seem to adapt any examples to fit my problem. If anyone could help I would be very appreciative. The error I'm getting says that:
.data is not a function
If I try putting the $ operator in front control just passes right through my block of code and nothing happens.
var container = $("#container");
('<div class="orb"></div>').data(num).appendTo(container);

It works well:
var $container = $('#container');
$('<div class="orb"></div>').data('num', 123).appendTo($container);
console.log($('.orb').data('num'));
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<div id="container"></div>
What is your problem?

Changing the body with jQuery when resize the window [closed]

Closed. This question is not reproducible or was caused by typos. It is not currently accepting answers.
This question was caused by a typo or a problem that can no longer be reproduced. While similar questions may be on-topic here, this one was resolved in a way less likely to help future readers.
Closed 9 years ago.
Improve this question
I'm trying to change the body content when I resize the windows, but after 2 hours searching and trying, I get nothing.
This is my last jQuery code:
$(window).resize(function(){
if($(window).width<=320){
changeHTML();
}
});
var changeHTML=function(){
alert("wow");
//$('body').load('../index2.html');
}
The "index2.html" is something like this:
<div>
A lot of stuff
</div>

$(window).width is incorrect, as width() is a method. Use $(window).width() instead.
See working jsFiddle demo

How to pass javascript variable in class? [closed]

Closed. This question is not reproducible or was caused by typos. It is not currently accepting answers.
This question was caused by a typo or a problem that can no longer be reproduced. While similar questions may be on-topic here, this one was resolved in a way less likely to help future readers.
Closed 9 years ago.
Improve this question
I am writing a code for quiz,whenever one option is selected by the user from out of four option,i want to alert. I have something similar to my code here:-
<label class="alert optiona">
</lablel>
I am having value
data.correct="optiona";
I need to send pass the value in javascript.When i am passing following syntax , it doesnt send the value of data.correct.
$(".alert "+data.correct).attr("class", "alert alert-"+ data.mode);

You're missing the dot in the selector and you have a space which means that the second class applies to a descendant of the .alert element.
Change
$(".alert "+data.correct)
to
$(".alert."+data.correct)