Frontend>In The News

How to write your first unit test in JavaScript

CommunityNews

CommunityNews

How to write your first unit test in JavaScript

How to write your first unit test in JavaScript | Snyk.
Testing code is the first step to making it secure. One of the best ways to do this is to use unit tests, ensuring that each of the smaller functions within an app behave as they should — especially when the app receives edge-case or invalid inputs, or inputs that are potentially harmful.

Read in full here:

This thread was posted by one of our members via one of our news source trackers.

View thread on forum
/js#test
0 876 0

Where Next?

View thread on forum
js
test
Home Frontend>In The News
/js#test
0 876 0
Last post

Popular Frontend topics Top

First poster: bot
Frontend>In The News

Tricks I wish I knew when I learned TypeScript
3 TypeScript Tricks I wish I knew when I learned TypeScript. TypeScript is a big Superset of JavaScript which has many features which mi...
cstrnt.dev
/typescript
2 976 0
New
First poster: OvermindDL1
Frontend>In The News

Rust Is the Future of JavaScript Infrastructure
Rust Is The Future of JavaScript Infrastructure – Lee Robinson. Why is Rust being used to replace parts of the JavaScript web ecosystem ...
leerob.io
/js/rust#infrastructure
20 1441 7
New
First poster: bot
Frontend>In The News

Derw: An Elm-inspired language that transpiles to TypeScript
GitHub - eeue56/derw: An Elm-inspired language that transpiles to TypeScript. An Elm-inspired language that transpiles to TypeScript - G...
github.com
/typescript/elm
0 1250 0
New
First poster: bot
Frontend>In The News

Deno in 2021
Deno in 2021. Retrospect of what happened in 2021 and what’s coming in 2022
deno.com
/deno
2 1186 0
New
First poster: bot
Frontend>In The News

Assertion Functions in TypeScript
Assertion Functions in TypeScript. TypeScript 3.7 implemented support for assertion functions in the type system. An assertion function ...
mariusschulz.com
/typescript
0 1056 0
New
First poster: bot
Frontend>In The News

Kotlin for JavaScript
Kotlin/JS provides the ability to transpile your Kotlin code, the Kotlin standard library, and any compatible dependencies to JavaScript....
kotlinlang.org
/js/kotlin
0 1113 0
New
First poster: bot
Frontend>In The News

TypeScript is terrible for library developers
Typescipt is terrible for library developers. We spend a disproportionate amount of time on types
erock.prose.sh
/typescript#library
0 852 0
New
First poster: bot
Frontend>In The News

NASA’s DART Deploys Camera Probe Ahead of Asteroid Impact
NASA’s DART Deploys Camera Probe Ahead of Asteroid Impact. Called LICIACube, the Italian-built probe will take images of DART’s impact w...
gizmodo.com
/dart
0 815 0
New
First poster: bot
Frontend>In The News

Announcing: Rescript-tea - the Elm Architecture for Rescript
Announcing: Rescript-tea. Rescript-tea is a Rescript implementation of The Elm Architecture, an MVU (Model-View-Update) pattern for orga...
blog.darklang.com
#rescript
0 939 0
New
First poster: bot
Frontend>In The News

Speeding up the JavaScript ecosystem - one library at a time
Speeding up the JavaScript ecosystem - one library at a time. Most popular libraries can be sped up by avoiding unnecessary type convers...
marvinh.dev
/js#library
0 867 0
New

Other popular topics Top

AstonJ
General Dev>Hardware

Poll: Which keyboard layout do you use?
poll poll Be sure to check out @Dusty’s article posted here: An Introduction to Alternative Keyboard Layouts It’s one of the best write-...
colemakmods.github.io
#polls/keyboards
10 5701 11
New
AstonJ
General Dev>Hardware

Custom keyboard keycaps
There’s a whole world of custom keycaps out there that I didn’t know existed! Check out all of our Keycaps threads here: https://forum....
#hardware/keyboards#keycaps#mechanical-keyboards
15 9736 19
New
AstonJ
General Dev>Dev Chat

How fast do you type? Check your WPM here!
Do the test and post your score :nerd_face: :keyboard: If possible, please add info such as the keyboard you’re using, the layout (Qw...
typing-speed-test.aoeu.eu
/keyboards
82 7310 31
New
PragmaticBookshelf
Backend>Learning Resources

Programming WebRTC
Use WebRTC to build web applications that stream media and data in real time directly from one user to another, all in the browser. ...
pragprog.com
#pragprog#published-book/js#webrtc/book-programming-webrtc
27 4743 6
New
PragmaticBookshelf
Backend>Learning Resources

Agile Web Development with Rails 7
Rails 7 completely redefines what it means to produce fantastic user experiences and provides a way to achieve all the benefits of single...
pragprog.com
#pragprog#web-development/ruby/rails#published-book/book-agile-web-development-with-rails-7
32 5327 9
New
Help
Game Dev>Questions

Can I use Java to program a game for Nintendo switch?
I am trying to crate a game for the Nintendo switch, I wanted to use Java as I am comfortable with that programming language. Can you use...
/java#nintendo
8 3968 3
New
AstonJ
AI>In The News

DeepSeek (671B) running on a cluster of 8 Mac Mini Pros with 64GB RAM each
This is cool! DEEPSEEK-V3 ON M4 MAC: BLAZING FAST INFERENCE ON APPLE SILICON We just witnessed something incredible: the largest open-s...
#ai#macs/deepseek
0 5576 1
New
AstonJ
AI>Chat

How to: Run DeepSeek on Mac, Windows, and Linux!
This is a very quick guide, you just need to: Download LM Studio: https://lmstudio.ai/ Click on search Type DeepSeek, then select the o...
#macs/deepseek#guides#lm-studio
14 7706 10
New
Margaret
Community>In The Spotlight

AMA with: Mark Volkmann (codebar Winter Lit Fest)
Ask Me Anything with Mark Volkmann @mvolkmann On February 24 and 25, we are giving you a chance to ask questions of PragProg author M...
/book-server-driven-web-apps-with-htmx#codebar-spotlight
37 1880 20
New
RobertRichards
Game Dev>Chat

Hair Salon Games for Girls Fun
Hair Salon Games for Girls Fun Girls Hair Saloon game is mainly developed for kids. This game allows users to select virtual avatars to ...
#ios#android#unity#fun
2 2088 1
New
Back to top

Sponsor Spotlight

Manning

Develop your skills with books, videos, and courses.

Latest in JavaScript

JavaScript Portal ❯

Frontend>In The News

Frontend In The News ❯

Latest on Devtalk

Devtalk ❯

We ❤️ helpful members!

We reward our most helpful members via our MOTM scheme - by giving away a whopping 25 books per year!

Member of the Month

Devtalk Sponsors

Pragmatic Bookshelf

Practical resources that improve the lives of professional developers.

Erlang Solutions

We build trusted fault-tolerant systems that scale to billions of users.

Honeybadger

Real-time error tracking, performance insights, and observability for devs.

EEF

Supporting innovation across the BEAM ecosystem.

coders51

We build reliable cloud platforms for business-critical systems.

Manning Publications

Develop your skills with books, videos, and courses.

AppSignal

Catch errors, track performance, monitor hosts and more.

WyeWorks

Enabling companies to succeed by building software people love.

Pragmatic Studio

Courses that move you from confusion to "Aha, now I get it!"

View all our sponsors ❯

Categories:

Sub Categories:

Popular Portals

Devtalk Sponsors

Pragmatic Bookshelf

Practical resources that improve the lives of professional developers.

Erlang Solutions

We build trusted fault-tolerant systems that scale to billions of users.

Honeybadger

Real-time error tracking, performance insights, and observability for devs.

EEF

Supporting innovation across the BEAM ecosystem.

coders51

We build reliable cloud platforms for business-critical systems.

Manning Publications

Develop your skills with books, videos, and courses.

AppSignal

Catch errors, track performance, monitor hosts and more.

WyeWorks

Enabling companies to succeed by building software people love.

Pragmatic Studio

Courses that move you from confusion to "Aha, now I get it!"

View all our sponsors ❯

We're in Beta

About us Mission Statement See our Roadmap