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.
React templates - intro

React templates - intro

4
Comments 6
1 min read
Made a Real Time Chat Application using React.js

Made a Real Time Chat Application using React.js

159
Comments 9
1 min read
How to filter an array in javascript?

How to filter an array in javascript?

17
Comments
3 min read
Deploy Twitter bot on Heroku

Deploy Twitter bot on Heroku

6
Comments 3
2 min read
Callback em javascript como fiz para entender?

Callback em javascript como fiz para entender?

4
Comments
4 min read
Introducing JellyFish - Theme your vscode will love

Introducing JellyFish - Theme your vscode will love

23
Comments 7
2 min read
How KFC employs thousands of candidates with good conversion

How KFC employs thousands of candidates with good conversion

11
Comments
5 min read
Recursion with JavaScript

Recursion with JavaScript

7
Comments
2 min read
JavaScript Modules: A walkthrough.

JavaScript Modules: A walkthrough.

6
Comments
4 min read
3 ways to clone in JS

3 ways to clone in JS

5
Comments 3
1 min read
Menu / Sidebar toggle functionality with pure CSS and no JavaScript.

Menu / Sidebar toggle functionality with pure CSS and no JavaScript.

12
Comments
2 min read
How to use MJS files in Node.js?

How to use MJS files in Node.js?

33
Comments 3
2 min read
Java vs JavaScript. Key differences and similarities

Java vs JavaScript. Key differences and similarities

32
Comments 11
5 min read
The simpler Javascript library

The simpler Javascript library

3
Comments
1 min read
Callback, Promise and Async/Await by Example in JavaScript

Callback, Promise and Async/Await by Example in JavaScript

3
Comments
3 min read
FileSystem API: Large File Client-Side Storage For Your Website

FileSystem API: Large File Client-Side Storage For Your Website

6
Comments
2 min read
Java for JavaScript Developer - week 2

Java for JavaScript Developer - week 2

11
Comments 1
5 min read
Architect: a different approach to web application development

Architect: a different approach to web application development

2
Comments
3 min read
JavaScript Data Structures and Algorithms (Search Algorithms, Part 2)

JavaScript Data Structures and Algorithms (Search Algorithms, Part 2)

4
Comments
1 min read
Closures in JavaScript

Closures in JavaScript

6
Comments 1
2 min read
Adding a loading state to fullCalendar

Adding a loading state to fullCalendar

6
Comments
3 min read
How to load the correct data on the server-side with React and Redux

How to load the correct data on the server-side with React and Redux

8
Comments
7 min read
I'm Using async/await. Why Does My Function Return a Promise?

I'm Using async/await. Why Does My Function Return a Promise?

4
Comments 1
2 min read
React templates - Deno

React templates - Deno

8
Comments
3 min read
The Node.js `util` module

The Node.js `util` module

7
Comments
3 min read
Technical Failure #1: React hooks dependencies

Technical Failure #1: React hooks dependencies

5
Comments
2 min read
React templates - wrap-up

React templates - wrap-up

7
Comments
1 min read
React templates - Node

React templates - Node

4
Comments
1 min read
React templates - Frontend only

React templates - Frontend only

4
Comments
2 min read
How I integrated 3D secure for recurring payments with Stripe

How I integrated 3D secure for recurring payments with Stripe

13
Comments 1
10 min read
JavaScript “Optional Chaining Operator”

JavaScript “Optional Chaining Operator”

6
Comments
1 min read
LeetCode 1169. Invalid Transactions (javascript solution)

LeetCode 1169. Invalid Transactions (javascript solution)

6
Comments 2
1 min read
Authentication and Authorization using AccessTokens - RefreshTokens | Part 2

Authentication and Authorization using AccessTokens - RefreshTokens | Part 2

6
Comments
3 min read
Authentication and Authorization using AccessTokens - RefreshTokens | Part 1

Authentication and Authorization using AccessTokens - RefreshTokens | Part 1

6
Comments
2 min read
Starting to understand Multi-tenancy

Starting to understand Multi-tenancy

8
Comments 2
3 min read
Communicating between browser tabs

Communicating between browser tabs

117
Comments 13
2 min read
RealWorld App with OWL (Odoo Web Library) - Part 1

RealWorld App with OWL (Odoo Web Library) - Part 1

16
Comments
21 min read
Step-by-Step Big O Complexity Analysis Guide, using Javascript

Step-by-Step Big O Complexity Analysis Guide, using Javascript

26
Comments
17 min read
Berry Pro React Admin Released

Berry Pro React Admin Released

5
Comments
4 min read
Using Weather API with JavaScript;

Using Weather API with JavaScript;

21
Comments 2
3 min read
Why your website needs validation

Why your website needs validation

17
Comments
4 min read
HackerRank's Common Child Problem Solution and Dynamic Programming

HackerRank's Common Child Problem Solution and Dynamic Programming

8
Comments
3 min read
Day 4: Class vs. Instance

Day 4: Class vs. Instance

2
Comments
1 min read
Uncaught TypeError: Cannot read property 'innerHTML' of null (solution)

Uncaught TypeError: Cannot read property 'innerHTML' of null (solution)

4
Comments
1 min read
let's talk about scope

let's talk about scope

3
Comments
3 min read
Why You Should Learn Next Next

Why You Should Learn Next Next

87
Comments 8
5 min read
JavaScript Popup boxes Tutorial

JavaScript Popup boxes Tutorial

4
Comments
2 min read
X-headers, what and why?

X-headers, what and why?

103
Comments 12
2 min read
Working with Javascript Events

Working with Javascript Events

5
Comments
2 min read
Single Responsibility Principle (SRP) in 100 seconds

Single Responsibility Principle (SRP) in 100 seconds

7
Comments
2 min read
JavaScript Cookies

JavaScript Cookies

3
Comments
4 min read
JavaScript Event Listeners

JavaScript Event Listeners

5
Comments
2 min read
AWS CDK Node.JS: Hello World

AWS CDK Node.JS: Hello World

8
Comments
3 min read
AWS DynamoDB DocumentClient & Node.js - Complete Cheat Sheet

AWS DynamoDB DocumentClient & Node.js - Complete Cheat Sheet

18
Comments
12 min read
Remove Items from an Array with pop() and shift()

Remove Items from an Array with pop() and shift()

5
Comments
1 min read
LeetCode 220. Contains Duplicate III (javascript solution)

LeetCode 220. Contains Duplicate III (javascript solution)

5
Comments
1 min read
How To Quickly Add Jest To Your Next.js App

How To Quickly Add Jest To Your Next.js App

11
Comments
2 min read
Use components without a frontend framework

Use components without a frontend framework

82
Comments 16
3 min read
How to create an NFT on Ethereum Blockchain

How to create an NFT on Ethereum Blockchain

84
Comments 4
7 min read
Fix Your Failing Tests: A Debugging Checklist for React Testing Library

Fix Your Failing Tests: A Debugging Checklist for React Testing Library

6
Comments
7 min read
loading...