DEV Community

JavaScript

Once relegated to the browser as one of the 3 core technologies of the web, JavaScript can now be found almost anywhere you find code. JavaScript developers move fast and push software development forward; they can be as opinionated as the frameworks they use, so let's keep it clean here and make it a place to learn from each other!

Posts

👋 Sign in for the ability to sort posts by relevant, latest, or top.
How to Setup A Medusa Server Locally

How to Setup A Medusa Server Locally

16
Comments 3
7 min read
Use tsx instead of nodemon

Use tsx instead of nodemon

14
Comments 7
1 min read
Difference Type of Console in JavaScript

Difference Type of Console in JavaScript

4
Comments
1 min read
Binary Tree Level Order Traversal

Binary Tree Level Order Traversal

2
Comments
2 min read
PostgresSQL unit-2

PostgresSQL unit-2

1
Comments
1 min read
Count Elements With Strictly Smaller and Greater Elements

Count Elements With Strictly Smaller and Greater Elements

2
Comments
2 min read
Why learning about Event Listeners & APIs in Javascript will only excite new upcoming developers

Why learning about Event Listeners & APIs in Javascript will only excite new upcoming developers

1
Comments 2
6 min read
PostgresSQL unit-1

PostgresSQL unit-1

Comments
1 min read
Secrets of numbers in JS

Secrets of numbers in JS

1
Comments
2 min read
[Javascript] Performance of Set and Array

[Javascript] Performance of Set and Array

2
Comments 1
2 min read
Simple FAQ Collapse

Simple FAQ Collapse

1
Comments
2 min read
FullStack JWT Auth: Migrating SvelteKit to its latest version

FullStack JWT Auth: Migrating SvelteKit to its latest version

2
Comments
3 min read
30-Day React Learning Journey [part 1]

30-Day React Learning Journey [part 1]

14
Comments 6
10 min read
Quick Example on using LocalStorage in React

Quick Example on using LocalStorage in React

6
Comments
1 min read
Reindeer Olympics

Reindeer Olympics

4
Comments
3 min read
How to handle multiple Same inputs box in React for Bulk Data Insert With Use of useRef Hook?

How to handle multiple Same inputs box in React for Bulk Data Insert With Use of useRef Hook?

1
Comments
2 min read
Use .env files in vue vite

Use .env files in vue vite

4
Comments
1 min read
5 ways to use the reduce method in JS

5 ways to use the reduce method in JS

12
Comments 2
4 min read
A guide for real-time communication with Long Polling, SSE, and Web Sockets

A guide for real-time communication with Long Polling, SSE, and Web Sockets

4
Comments
4 min read
Escribiendo tests mas claros, simples y de amplio espectro con Table Driven Testing con jest

Escribiendo tests mas claros, simples y de amplio espectro con Table Driven Testing con jest

5
Comments
3 min read
Cloudflare Turnstile plugin for Deno Fresh (p2)

Cloudflare Turnstile plugin for Deno Fresh (p2)

1
Comments 1
4 min read
Final Value of Variable After Performing Operations

Final Value of Variable After Performing Operations

8
Comments 2
2 min read
Using React.memo

Using React.memo

4
Comments
2 min read
Building a custom RequireJS

Building a custom RequireJS

Comments
2 min read
Simple Load Balancer With NodeJS & Express JS

Simple Load Balancer With NodeJS & Express JS

12
Comments
1 min read
Elegant way to Calculate Mean and/or Mode

Elegant way to Calculate Mean and/or Mode

1
Comments
2 min read
Display a card with your Gists on your GitHub README.md

Display a card with your Gists on your GitHub README.md

3
Comments
2 min read
Typescript Commands #Quick Notes.

Typescript Commands #Quick Notes.

6
Comments
1 min read
Buscador de imágenes con React JS - React Query 🔋

Buscador de imágenes con React JS - React Query 🔋

15
Comments 1
12 min read
Async and Await #JS mordern concept.

Async and Await #JS mordern concept.

6
Comments
2 min read
A good reason to use React18: useSyncExternalStore

A good reason to use React18: useSyncExternalStore

1
Comments
3 min read
Building A Custom File Upload Component For Vue

Building A Custom File Upload Component For Vue

12
Comments
13 min read
JavaScript Objects

JavaScript Objects

Comments
1 min read
Bare minimum setup on VSCode to work on TS/JS projects

Bare minimum setup on VSCode to work on TS/JS projects

25
Comments 3
2 min read
The Rising Coder - Week 6/13 (Backend Week 2/3)

The Rising Coder - Week 6/13 (Backend Week 2/3)

Comments
8 min read
PATCHing nested JSON data in a react application

PATCHing nested JSON data in a react application

Comments
2 min read
MongoDB $weeklyUpdate #90 (October 7, 2022): Mastering the Realm Web SDK and *Tons* of October Events!

MongoDB $weeklyUpdate #90 (October 7, 2022): Mastering the Realm Web SDK and *Tons* of October Events!

1
Comments
4 min read
Automate GitHub Actions Node Version

Automate GitHub Actions Node Version

Comments
1 min read
Extending Emmet and VS Code — and discovering 415 CSS properties

Extending Emmet and VS Code — and discovering 415 CSS properties

10
Comments
9 min read
Why I like to use Early Returns Pattern?

Why I like to use Early Returns Pattern?

6
Comments 1
3 min read
Uploading files to image server using ImageKit and Multer in MERN stack

Uploading files to image server using ImageKit and Multer in MERN stack

5
Comments
4 min read
Loop functions in synchronous way #React Quick Notes.

Loop functions in synchronous way #React Quick Notes.

9
Comments
1 min read
Let me understand how JavaScript works under the hood

Let me understand how JavaScript works under the hood

252
Comments 20
7 min read
Focus within & 4 other webdev tips you may want to know 🚀

Focus within & 4 other webdev tips you may want to know 🚀

177
Comments 1
2 min read
XSS: Problem with letting users upload SVG

XSS: Problem with letting users upload SVG

3
Comments
2 min read
How to handle a Sequelize promise within a for loop?

How to handle a Sequelize promise within a for loop?

4
Comments
1 min read
High-level overview of Javascript

High-level overview of Javascript

13
Comments 7
3 min read
Programming chose me

Programming chose me

5
Comments 2
1 min read
JavaScript Arrays vs Objects

JavaScript Arrays vs Objects

Comments 4
1 min read
Dynamic forms with validation React + Formik

Dynamic forms with validation React + Formik

4
Comments
4 min read
Help to build a language for developing full-stack web apps with no boilerplate

Help to build a language for developing full-stack web apps with no boilerplate

2
Comments
1 min read
Cypress vs Selenium WebDriver Comparison by Example

Cypress vs Selenium WebDriver Comparison by Example

3
Comments
11 min read
Bun so far

Bun so far

7
Comments
2 min read
Exploring Vue 3’s reactivity: ref and watchEffect

Exploring Vue 3’s reactivity: ref and watchEffect

43
Comments 1
4 min read
The Rising Coder - Week 3/13 (Fundamentals Week 2/3)

The Rising Coder - Week 3/13 (Fundamentals Week 2/3)

Comments
8 min read
The Next Greater Element - I

The Next Greater Element - I

1
Comments
1 min read
Migrating my Gatsby MDX blog to AstroJS (and why you shouldn't)

Migrating my Gatsby MDX blog to AstroJS (and why you shouldn't)

6
Comments
16 min read
A simple guide to consuming APIs with Redux (tutorial example)

A simple guide to consuming APIs with Redux (tutorial example)

Comments
6 min read
String Compression

String Compression

Comments
1 min read
A beginner's attempt at fetch() and a crash-course on browser cache

A beginner's attempt at fetch() and a crash-course on browser cache

1
Comments
4 min read
loading...