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Q&A

Welcome to Software Development on Codidact!

Will you help us build our independent community of developers helping developers? We're small and trying to grow. We welcome questions about all aspects of software development, from design to code to QA and more. Got questions? Got answers? Got code you'd like someone to review? Please join us.

Posts tagged javascript

8 child tags

Use for questions regarding programming in ECMAScript (JavaScript/JS) and its various implementations. This should be accompanied by the specific framework / dialect used (e.g. jquery, node.js, typescript).

This tag doesn't have a detailed wiki yet.

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Q&A How to Select From Multiple images to display main product image. [closed]

Below are the links to code for my project. HTML CSS Js Script I have created Magnifying Image which was successful now i am trying to add multiple images which can be display in main produc...

0 answers  ·  posted 30d ago by abhishek27suvarna‭  ·  closed 29d ago by ArtOfCode‭

Question javascript html css
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Code Reviews How to programmatically click through a list of elements if one has to wait for a click to load a set of predefined new elements?

I would like to download the old-time radio show I Love a Mystery from the OTRR website. I figured out how to construct the list of right URLs, const urlStub = "https://otrr.org/OTRRLibrary/jukebo...

1 answer  ·  posted 4mo ago by toraritte‭  ·  edited 2mo ago by toraritte‭

Question javascript
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Q&A How can I get a value as a node:stream from the Nest.js cache-manager?

Question How can I read data from a NestJS Redis Cache as a stream? I'm using Nest.js and its @nestjs/cache-manager (using the Redis implementation), I need to read data I have stored in the cach...

0 answers  ·  posted 4mo ago by gdfelt‭  ·  edited 4mo ago by MrDevel0per‭

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Q&A How do I register the Chart.js Zoom plugin?

I am attempting to use the chartjs-zoom-plugin v2.0.1 with Chart.js v4.4.0. I have the plugin as the file chartjs-plugin-zoom-2.0.1.min.js, and I have imported it into my page using <script ty...

1 answer  ·  posted 5mo ago by CavanWright‭  ·  last activity 4mo ago by surajrao‭

Question chart.js
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Q&A Axios error bad request [closed]

I'm trying to use this code with Axios: import "./feed.css"; import Post from "../post/Post"; import Share from "../share/Share"; import { useState, useEffect } from "react"; import axios from...

0 answers  ·  posted 4mo ago by AyeshSoul‭  ·  closed 4mo ago by Alexei‭

Question javascript axios
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Q&A How do I share a type between a client and server, but make a specific field optional for one and required for the other?

Let's say I have a client/server application with a data structure on the server side: type User = { name: string; superSecretGovernmentIdNumber: string; }; These fields are both non-nul...

1 answer  ·  posted 4mo ago by Emily‭  ·  edited 4mo ago by Emily‭

Question typescript
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Q&A Determine which script is slowing the page down in Firefox [closed]

A page is very slow and laggy in Firefox. I am certain it's one of the many Javascripts slowing it down. Out of curiosity, I'd like to figure out which script is creating the heaviest load. Note t...

0 answers  ·  posted 5mo ago by matthewsnyder‭  ·  closed 5mo ago by Alexei‭

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Q&A How do I get the min/max axis values in Chart.js?

I'd like to get the minimum and maximum values of the axes on a Chart.js 4.4.0 plot. When the plot is created, these values must be calculated somewhere. However, reading through the Chart.js doc...

1 answer  ·  posted 5mo ago by CavanWright‭  ·  last activity 5mo ago by Ullallulloo‭

Question chart.js
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Q&A How do I install Chart.js as a file?

I'm trying to replace Flot.js with Chart.js. In my application, Flot.js is included as a normal JavaScript file, like so: <script language="javascript" type="text/javascript" src="jquery.flot-...

1 answer  ·  posted 5mo ago by CavanWright‭  ·  last activity 5mo ago by Ullallulloo‭

Question chart.js
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Q&A JavaScript redirect is getting "hijacked" and it is not onbeforeunload event.

My redirect in javascript somehow gets "hijacked" and I don't understand how. Previous developer (who is no longer working with the company) on page load initialized onbeforeunload event like so: ...

1 answer  ·  posted 7mo ago by Vanity Slug ❤️‭  ·  last activity 5mo ago by Vanity Slug ❤️‭

Question javascript redirect
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Q&A How to implement automatic text-to-link conversion in TypeScript?

I'm trying to create an automatic text-to-link conversion feature in a TypeScript application. The desired workflow is: Copy a URL to the clipboard Select some text Paste the URL - this should...

0 answers  ·  posted 6mo ago by ShadowsRanger‭  ·  edited 6mo ago by ShadowsRanger‭

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Q&A Redux Toolkit Issue with Managing States

I am all new with using Redux Toolkit, I followed the official documentation to setup the store: // store.ts import { configureStore, ThunkAction, Action, combineReducers } from '@reduxjs/toolkit...

0 answers  ·  posted 7mo ago by boudagga.ma94‭

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Q&A What can be used in react-native instead of an html label tag to achieve the same result?

I wanna make a form in React native. A field in this form in (non-native) React would be like this: <div> <label htmlFor="lastName">Last Name:</label> <input type="text...

0 answers  ·  posted 7mo ago by andre‭  ·  edited 7mo ago by andre‭

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Q&A When using the compare function in Array.prototype.sort, how to avoid an element to be processed more than once?

When using the Array.prototype.sort method, we can pass a compare function as argument. Then, this function can be used to process array's elements, so the comparison is made using some custom crit...

2 answers  ·  posted 2y ago by hkotsubo‭  ·  last activity 8mo ago by matthewsnyder‭

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Q&A Problems with Google Apps Script API JavaScript "How to... Execute function"

As this is the first question about Google Apps Script, here is a very brief description: it is a platform that helps people easily get programmatic access to Google apps data like Gmail messages, ...

1 answer  ·  posted 8mo ago by Wicket‭  ·  last activity 8mo ago by Wicket‭

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Q&A Possible drawbacks for having duplicate local sources of the project tracking the same Git remote

Context I have started working on an Angular upgrade for a medium-sized project (from v. 10 to v. 15) and this is a rather long activity that is interrupted by other changes that need to be perfor...

2 answers  ·  posted 8mo ago by Alexei‭  ·  last activity 8mo ago by Andrew‭

Question git angular upgrade npm
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Q&A Are there other reasons why useEffect might not be defined apart from not importing it?

I am creating a button that once clicked will change from off to on with react and i am also creating a responsive clock through useEffect. Yet the code still return that useEffect is undefined th...

2 answers  ·  posted 9mo ago by Brian‭  ·  last activity 9mo ago by jmathew‭

Question reactjs react-hooks
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Code Reviews Vanilla JS Functions Review

I wanted to create a simple static website that would use JS to randomly rotate through a quotes.json file I maintain. My JavaScript experience is more limited as it's not what I do at work, so wha...

1 answer  ·  posted 11mo ago by fausty‭  ·  last activity 10mo ago by fausty‭

Question javascript
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Q&A Ignore NPM Modules Digital Ocean App Platform

There may be a better way to manage website's with JavaScript deployments. I added jest to my repo simply to execute tests when I make PRs as part of a GitHub action. This requires a package-lock.j...

1 answer  ·  posted 11mo ago by fausty‭  ·  last activity 11mo ago by fausty‭

Question deployment npm
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Code Reviews CSS grid with expanding cells

Goal Our goal is to create a kind of table, using HTML/CSS/JS, with cells that expand when you click on them. If you click on a header, the whole row or column will expand. This in itself is not ...

0 answers  ·  posted 11mo ago by berrie‭  ·  edited 11mo ago by berrie‭

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Q&A Adding elements to wrapper after calling wrap doesn't work

I'm trying to do some DOM manipulation in jQuery, but am having issues with creating wrapper elements. For some reason, prepending to the wrapper doesn't work after I call wrap. Code <html>...

1 answer  ·  posted 1y ago by Moshi‭  ·  last activity 11mo ago by Mithical‭

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Q&A How to use ReactNative SDK with flexible sync using a code first approach

I am working on a React Native app using Realm, Atlas Flexible Sync, and MongoDB, and I'm super confused about how subscriptions work. I'm coming from a .NET SQL background, so I'm completely new t...

0 answers  ·  posted 12mo ago by Scriptastrophe‭  ·  last activity 11mo ago by Mithical‭

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Q&A queryselector for all does not select the specified css selectory [closed]

I tried using query selector but it does not work heres my HTML code: <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>JS + CSS Clock&lt...

0 answers  ·  posted 1y ago by Ansh‭  ·  closed 1y ago by Alexei‭

Question javascript web css
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Q&A Replit particles push instead of being background [closed]

I am working on a replit https://AppropriateMessyRoutes.ozabramo.repl.co and I am trying to implement https://github.com/VincentGarreau/particles.js as a background but I keeps on pushing every...

1 answer  ·  posted 1y ago by ObviousPlays‭  ·  closed 1y ago by Alexei‭

Question javascript html css
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Q&A How should I deploy my Full Stack Angular Application (MEAN Stack) project on free hosting website? [closed]

How should I deploy my Full Stack Angular Application (MEAN Stack) project on free hosting website? Github I have provided below the github link of the project for the better understanding. Prob...

0 answers  ·  posted 1y ago by mrsilenttradeguy‭  ·  closed 1y ago by Alexei‭

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Q&A highlight.js 3rd party plugin error: Cannot read properties of undefined

Highlight.js version: 11.6.0 Node version: v18.12.0 npm version: 8.19.12 When I provide a plugin with the following code to highlightjs (full code is at github): /* Language: BQN Requires: A...

1 answer  ·  posted 1y ago by Razetime‭  ·  last activity 1y ago by Razetime‭

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Code Reviews Setting the authentication token in an Angular application for generated API clients

This is a post of mine from Code Review Stack Exchange which did not get an answer yet. I am developing an Angular application that consumes an external REST API. I am using OpenAPI generator (Typ...

1 answer  ·  posted 3y ago by Alexei‭  ·  last activity 1y ago by Alexei‭

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Q&A What is [{options}] in JavaScript?

I am trying to understand this code: const iframes = iFrameResize( [{options}], [css selector] || [iframe] ); The code can be found in this documentation. Is [{options}] an array of objects an...

1 answer  ·  posted 2y ago by deleted user  ·  last activity 2y ago by hkotsubo‭

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Q&A Does a for...of loop must contain a variable without assignment sign, and why?

The following code pattern reflects this answer. This code contains a for...of loop: for (const child of e.childNodes) { // Do stuff; } Does a for...of loop must contain a variable without...

1 answer  ·  posted 2y ago by deleted user  ·  edited 2y ago by hkotsubo‭

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Q&A How this recursive treewalker works?

Credit for User:Meriton for developing the following code (first published here). function replaceIn(e) { if (e.nodeType == Node.TEXT_NODE) { e.nodeValue = e.nodeValue.replaceAll("a", "");...

3 answers  ·  posted 2y ago by deleted user  ·  last activity 2y ago by hkotsubo‭

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Q&A Explaining the result of an arithmetic expression in JavaScript

I misunderstand why the following code outputs -1 in console. x = 42; x = (x == 42) * -1 + (x != 42) * x; -1 Due to Type Coercion, the comparison of x to 42 yields true and is thus transl...

2 answers  ·  posted 2y ago by deleted user  ·  edited 2y ago by Alexei‭

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Q&A Is there a JavaScript command to remove all CSS pseudo-elements whatsoever in a document? [closed]

In a dense DOM tree created by a content management system which I didn't create and don't know much about there might be pseudo elements hiding in various places. To ensure that, I want to run so...

0 answers  ·  posted 2y ago by deleted user  ·  closed 2y ago by Alexei‭

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Q&A How to make this treewalker code having a regular for loop or a forEach() method?

Credit for User:Meriton for developing the following code (first published here). function replaceIn(e) { if (e.nodeType == Node.TEXT_NODE) { e.nodeValue = e.nodeValue.replaceAll("a", "");...

1 answer  ·  posted 2y ago by deleted user  ·  edited 2y ago by Alexei‭

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Q&A Recursion without a procedure ("function") in JavaScript

Credit for User:Meriton for developing the following code (first published here): function replaceIn(e) { if (e.nodeType == Node.TEXT_NODE) { e.nodeValue = e.nodeValue.replaceAll("a", "");...

3 answers  ·  posted 2y ago by deleted user  ·  edited 2y ago by Alexei‭

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Q&A What are the types of DOM nodes?

If I am not mistaken any DOM "tree" node is actually a "branch", which would be an HTML element or perhaps a CSS pseudo-element, of course. If that's true what are the different node types and esp...

1 answer  ·  posted 2y ago by deleted user  ·  last activity 2y ago by hkotsubo‭

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Q&A Delete all occurrences of a character in a webpage with vanilla JavaScript

Primarily for learning, I would like to try to delete a specific character (letter or number or special character), wherever it is in a webpage, with vanilla JavaScript. The webpage won't change a...

3 answers  ·  posted 2y ago by deleted user  ·  last activity 2y ago by hkotsubo‭

Question javascript replace
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Q&A How to access the visual editor from JavaScript in MediaWiki?

In MediaWiki 1.36.1 with Skin:Timeless, the following JavaScript code doesn't work. I get in browser console: Your skin is incompatible with VisualEditor. See https://www.mediawiki.org/wiki/Exte...

0 answers  ·  posted 2y ago by deleted user  ·  edited 2y ago by deleted user

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Q&A TypeScript is unable to infer the correct type for a mapped tuple

I was playing around with mapped tuples and came across an interesting case where TypeScript cannot infer the types used: interface Foo<A, B> { (a: A, b: B): any } function test<...

0 answers  ·  posted 2y ago by Moshi‭  ·  edited 2y ago by Moshi‭

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Q&A MediaWiki JavaScript way to view the history of a page

I wish to view the revision-history-webpage of a webpage in MediaWiki without the conventional button to do so (I've disabled that button for aesthetic reasons). Please disable the MediaWiki View ...

1 answer  ·  posted 2y ago by deleted user  ·  last activity 2y ago by deleted user

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Q&A Why does a keydown event is listened only once?

The following code (credit for user:hkotsubo) moves the user to another page if Alt+Shift+E are pressed together. window.addEventListener('DOMContentLoaded', () => { let domain = window.loca...

0 answers  ·  posted 2y ago by deleted user

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Q&A Move to the edit webpage of a webpage via the keyboard with vanilla JavaScript

The webpage example.com has an edit webpage (from which one can edit example.com itself). example.com/index.php?title=עמוד_ראשי&action=edit I want that after I click ALT+Shift+E, I would im...

1 answer  ·  posted 2y ago by deleted user  ·  last activity 2y ago by hkotsubo‭

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Q&A How to uncollapse an entire link tree with JavaScript?

This data tree is comprised of clickable buttons and I want to expose all branches, in a single action, instead of clicking each vertical arrow button anew. I have tried the following code which d...

1 answer  ·  posted 2y ago by deleted user  ·  edited 2y ago by Alexei‭

Question javascript html
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Q&A In angular-imask how do I get the IMask class?

Using Angular-IMask, I'm programatically updating the field that has IMask. So I'm getting the error: "Element value was changed outside of mask. Syncronize mask using mask.updateValue() to work p...

0 answers  ·  posted 2y ago by nelson777‭  ·  edited 2y ago by nelson777‭

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Q&A How to uncollapse the first and second tiers of a link tree in JavaScript?

I wish to display the first and second branches of a link tree with JavaScript. I want to show these branches in a single action, instead of clicking each vertical arrow (link) anew. HTML examp...

2 answers  ·  posted 2y ago by deleted user  ·  last activity 2y ago by hkotsubo‭

Question javascript treeview
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Q&A Tackling net::ERR_NAME_NOT_RESOLVED and timeout error on browser object creation when using Puppeteer

Used to work with PhantomJS. Want to upgrade to Puppeteer. Started with some code: "use strict"; const puppeteer = require("puppeteer"); const capture = async () => { let browser; try {...

0 answers  ·  posted 2y ago by sbirl‭  ·  edited 2y ago by Alexei‭

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Q&A Why does pushing to one array affect all the arrays in my two-dimensional array?

I was trying to initialize a simple two dimensional array as follows: const arrays = Array(3).fill([]); However, when I tried to push an entry into one of the arrays, it seems like it gets push...

1 answer  ·  posted 2y ago by Moshi‭  ·  last activity 2y ago by Moshi‭

Question javascript array
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Q&A Detecting if a user has stopped interacting with a web view for a certain time

I am interested in finding out all the aspects I need to cover in order to correctly assess if a user has stopped interacting with a web page. So far, I found the following: Idle Detection API -...

1 answer  ·  posted 2y ago by Alexei‭  ·  last activity 2y ago by meriton‭

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Q&A A keydown event succeeds for an English letter but not for an Hebrew one, sharing the same key

I am trying to listen to the event in which the keyboard key containing the Hebrew final-letter ך is pressed. This key stands for both the English letter L and the Hebrew final letter ך. If my op...

0 answers  ·  posted 2y ago by deleted user  ·  edited 2y ago by deleted user

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Q&A Manipulate a web browser to hide a certain HTML element in a certain website by a single action

Before I publish a new webpage in my website (in the content management system itself), I zoom in from say 100% zooming to 500% zooming and then re-read it, as a nice way to check for typos. The p...

2 answers  ·  posted 2y ago by deleted user  ·  last activity 2y ago by bta‭

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Q&A How to deeply clone an array in Angular / TypeScript?

I have an array that I need to clone in Angular / Typescript. That is, any change done on an element from the cloned array should not affect the content of the initial array. How can I achieve thi...

2 answers  ·  posted 2y ago by Alexei‭  ·  last activity 2y ago by hkotsubo‭