41,776 questions
1
vote
3
answers
83
views
is there a difference between elements created dynamically with JavaScript and elements in HTML
take the code below:
contentsDiv.innerHTML = container.outerHTML;
if(contentsDiv.firstChild === container) console.log('true');
in this code, contentsDiv is a div created in my html file ...
-3
votes
1
answer
65
views
addEventListener vs onclick - which one overwrites the other? [duplicate]
If I use both Which one runs? Do they both run? Having trouble understanding the difference.
const button = document.getElementById('button')
button.onclick = function() { console.log('onclick'); } // ...
1
vote
1
answer
41
views
getCSRFToken is not defined error, JavaScript
This is the part of the code in the Django + JavaScript Todo App that is responsible for deleting a note. I need a csrftoken for this, but the JS is showing me an error in the console. What did I do ...
- 13
0
votes
0
answers
52
views
Is there a way to make the image be the height of neighboring text? [duplicate]
I have an image on the left, which is always square, and some text on the right (it can be one <p> or multiple, it depends).
The text should be rendered normally and the image on the left should ...
0
votes
2
answers
69
views
xpath filtering misleading misconception behavior [closed]
I have noticed this xpath misleading behavior problem,
for this expression:
elemA[ not(elemB) ]
it has two meanings:
1. yes show all elemA filtered all childs elemB. eg: select all elements but ...
- 43
0
votes
1
answer
53
views
ReactJS - Javascript addEventListener does not remove the listener function at component's unMount
I have added an event listener to "keydown" event in my ReactJS application. Because of a third party library, I'm adding it via setTimeout in a useEffect, this component is like a popup, so ...
- 4,068
2
votes
2
answers
63
views
Can a HTMLCollection change while iterating through it, even though no changes to DOM are made in THIS thread?
So, I have a mystery bug that is hard to reproduce, and so far my best suspect is this code:
function getMagicElement(root) {
var collection = root.getElementsByTagName('span');
for ( var i = ...
- 107k
1
vote
1
answer
50
views
Web Components: Slots are not working as (I) expected in light DOM
How can I change the following light DOM custom element to show the content of the default slot between (!!!) the two horizontal rulers?
Please be aware, that I cannot use shadow DOM in my use case.
&...
- 886
2
votes
1
answer
61
views
jsPDF adds image at incorrect size and position when using dimensions from getBoundingClientRect and clientHeight/clientWidth
I am trying to add an HTMLElement to a PDF after converting it to an image using "toPng" from "html-to-image".
The HTMLElement exists inside another, that plays the role of the ...
0
votes
0
answers
104
views
Updating HTML element causes PointerLockControls to stutter in three.js
For quite some time, I've had an issue in three.js where when putting any HTML element updates in my animation loop, my PointerLockControls always have a strange stutter. For example:
function animate(...
- 632
0
votes
0
answers
98
views
How to change iFrame src with a default value when the original src does not exist?
I have the following basic html code in a file called default.html:
<html>
<head></head>
<body>
<input id="year" type="number" min="2000" ...
- 356
0
votes
1
answer
27
views
Traversing and Transforming Children of preact components
I've recently had a problem with needing to traverse and transform some DOM children from a Parent Preact component:
import {isElevated} from "../stores/UserStateStore.ts";
import type {...
- 21
0
votes
2
answers
50
views
New line in a X post
I wrote a browser extention for social media handling.
You can e.g. reformulate your given text to make it more positive etc.
Now if I insert the response to the X - Reply Textarea back it does not ...
- 401
1
vote
1
answer
57
views
Why is my `<p id="time">` not displaying anything when using JavaScript in a separate file?
I'm trying to display the current time inside a paragraph element using JavaScript. My HTML and JavaScript are in separate files.
Here's my HTML snippet:
<p id="time"></p>
And ...
0
votes
0
answers
44
views
getElementById() returns null in JavaScript [duplicate]
I'd like to create a dynamic select menu in JavaScript and hit a problem below.
When I run the codes below, I got an error which reads "Uncaught TypeError: Cannot read properties of null (reading ...
