Test does not throw error when expected value is inside loop

I'm trying to refactor some unit tests and found that expect inside a loop doesn't work. I'm looping through a...

From [JavaScriptdiscussion group] 2023-09-18 15:34:42 0  1  614

How to send a WebSocket message conditionally?

I'm using javascript and the ws package from expressjs to set up my server. I'm building a chat app for my por...

From [JavaScriptdiscussion group] 2023-09-18 14:56:33 0  1  661

Utilize symbols with specified properties

In the code shown below, I have defined some constants. I want to use Symbol to ensure each constant is unique...

From [JavaScriptdiscussion group] 2023-09-18 12:45:11 0  1  547

Generate canvas image using local computer

I want to load an image into a <canvas> on my laptop so that I can use getImageData(). I'm using javascr...

From [JavaScriptdiscussion group] 2023-09-18 08:44:24 0  1  625

Please look at these four setTimeout functions and their execution parts

//1setTimeout(()=>{console.log('hi');},5000)//2setTimeout(()=>{console.log('hello');},3000)//3setTimeout...

From [JavaScriptdiscussion group] 2023-09-17 18:04:25 0  1  592

Select jQuery element $input._flatpicker input by flatpickr

I'm using jquery in my project and I'm using flatpickr to place a date dropdown box. I need to get an existing...

From [JavaScriptdiscussion group] 2023-09-17 15:41:09 0  1  669

Data received from socket.io is not immediately reflected in the status

When app.js receives the data sent from the server (displayed in the console), setState does not refresh the w...

From [JavaScriptdiscussion group] 2023-09-17 15:04:28 0  1  742

Make React props optional and required in TypeScript based on other props

I have a React button container component that returns a regular button, an icon button, or an icon-only butto...

From [JavaScriptdiscussion group] 2023-09-17 13:42:00 0  1  677

Facing overflow issues with React Slick

I'm using reactslick to make a slider, the slider card contains a dropdown menu with many options. When the dr...

From [JavaScriptdiscussion group] 2023-09-17 10:16:57 0  1  509

Importing mongoose only causes execution to break

The line of code that causes the problem is importing mongoose into the code constmongoose=require("mongo...

From [JavaScriptdiscussion group] 2023-09-17 08:56:37 0  1  613

Taking action within actions: Leverage nested actions to make a difference in your next Redux

I want to implement the logic of authorizing users when the page loads. Initially I wanted to check if there i...

From [JavaScriptdiscussion group] 2023-09-17 08:40:23 0  1  491

scrollIntoView executes too early after forEach loop

I have the following two functions...functionsizeSearch(size){constcontainer=document.querySelector('ul.size-r...

From [JavaScriptdiscussion group] 2023-09-17 00:27:54 0  1  655

Generate a diverse collection of Chai assertions for future evaluation

I have some asynchronous (I/O bound) tasks to do, and then I want to use Chai to assert the returned value. In...

From [JavaScriptdiscussion group] 2023-09-16 23:25:50 0  1  492

How to reuse JavaScript class instances

classPerson{constructor(name,age){this.name=name;this.age=age;}sayHello(){console.log(`Hello,mynameis${this.na...

From [JavaScriptdiscussion group] 2023-09-16 23:05:12 0  1  557

Why doesn't VS Code limit each line to a maximum of 80 characters when saving?

I installed the Prettier extension and set the max line width to 80. I also set it up to format on save. When ...

From [JavaScriptdiscussion group] 2023-09-16 23:12:08 0  1  736