JavaScript Unit Testing Tutorial for Beginners

Write bulletproof JavaScript code with unit testing! 💪 This beginner-friendly tutorial will teach you the essentials for cleaner, more reliable apps.
Key benefits of unit testing:
- Catch bugs early in development
- Boost confidence in your code
- Write better, more maintainable JavaScript
🚀 Want more?
- Check out my full JavaScript Unit Testing Course: bit.ly/javascript-unit-testing
- Subscribe for more videos like this: goo.gl/6PYaGF
✋ Stay connected for updates and exclusive content! Follow me on:
- Twitter: / moshhamedani
- Facebook: / programmingwithmosh
- Instagram: / codewithmosh.official
- LinkedIn: / codewithmosh
📖 TABLE OF CONTENT
0:00:00 Course Intro
0:01:21 Prerequisites
0:02:01 Course Structure
0:04:16 How to Take This Course
0:05:14 Setting Up the Testing Environment
0:05:46 Starter Project
0:06:40 Introduction to Unit Testing
0:08:19 What is Unit Testing?
0:13:39 Types of Tests
0:16:53 Choosing a Testing Framework
0:18:31 Setting Up Vitest
0:19:44 Writing Your First Test
0:29:04 Exercise: Testing fizzBuzz
0:35:00 Test-Driven Development
0:42:10 Exercise: Testing Factorial
#javascript #testing

[@programmingwithmosh]

🚀 Want more? - Check out my full JavaScript Unit Testing Course: bit.ly/javascript-unit-testing - Subscribe for more videos like this: goo.gl/6PYaGF

[@jonasn5]

Hello Mosh, I am trying to use this as a baseline to try some of my own js unittest. but I am meeting an issue of initializing when i try to define a custom class in one of the .js files then importing it. Do you have an idea what is causing this issue?

[@invertedcoder]

Mosh sir i started coding by seeing you are my inpiration i hope you keep teaching and make others life better

[@Tech050-jb5zu]

Thanks a million for the effort you made, Mosh! I’m learning Full-Stack development with your Clear & concise KZbin videos.

[@amirhoseinshams256]

This would be a great and useful course!💥🔥 دمت گرم داری!❤️

[@harshbansal]

Thank you thank you thank you Ben waiting for this 🥺❤️❤️

[@user-si7pf9wm9p]

Thank You! For Your Service! You are a Noce Person Dear Mosh Keep it up

[@lorenainfanter.3099]

This is the info that I was looking for! Thank you very much. I didn't know anything about testing, but with this video I learnt a lot!! The explanation was very clear and straightforward. Thanks again!!

[@user-tx5yi7bk2r]

It's good to see you back But i was really excited to learn more about mechine learning. Please try to do more about it.❤

[@vdevivaraprasad3588]

I have started learning your React course. That course is osum i have never seen any instructed like you. You are making the coding as fun and also real world examples and projects. That's why everyone likes your style of teaching. But i have one doubt when you're gonna release part 3 of the ultimate react series. Eagerly waiting for that. Anyway thank you❤.

[@bmarecords5183]

Thanks so much for this course Mosh, you should also prepare one course on integration testing and testing react apps

[@hosseinjafari2896]

You're doing amazing. Love from Iran😍

[@abdelalikabou9197]

Thank you so much mosh . Still learning from you 😉

[@inspirechristians5789]

Mosh you are my model to be inspired

[@kevinemugisha9035]

Thanks Mosh, we love youuuuu

[@MohammadMansourBone]

We have been waiting for this course for a long time 😁

[@Whisperywolf1269]

best course ever

[@kipfitpal]

Yay, Mosh is back !!!!

[@lebogangsekwati4305]

This is the one thing I struggle with the most. I'm so excited for thjs

[@russellmoore3418]

Excellent video, very well done!

[@cppexplorery]

This man really does cool things. Thanks to him, I started making videos myself. I wish good luck to everyone who is learning. May everything work out for you 💪

[@gfabasic32]

Thanks Mosh!

[@user-lb2pl9qi6w]

Waiting ❤

[@davood7497]

Mosh is back 💯💯💯

[@Omar-jibril]

Thanks Mosh

[@ar-swe]

love you mosh

[@TroyTV5]

Your tutorials are amazing. Can you do one for Software testing?

[@mehakgrover2174]

Hi Mosh

[@monkamkelvin9115]

I’m still waiting for your flutter course mosh …. You promised it since the react native course

[@rafeeqshaik7355]

Me too broo

[@ademineshat]

Me tooo 😅 Let's Blow up this comment 🎉

[@kristapsg3540]

Me too!

[@khaled.noordin]

Flutter sukcs better focus on fp-ts lib.

[@programmingwithdami]

No he didn't

[@shashankphatkure]

thankyou very much sir :)

[@mehmetaydar_QXyGeN]

Thank you so much :)

[@valeriaguzman9620]

I learned SQL with your content and I was able to land my first engineering position as a junior SRE ❤ thanks for sharing such valuable content.

[@kinggrey2511]

What does your work mostly consists of ?

[@chandrashekharreddy5380]

Ur just awesome

[@balakrishnaprasad8928]

Mosh Sir I beacame a fan of your teaching. Kindly create a course for Flask Framework and Fast API

[@reza-bx8em]

amazing!!!! پرچم همدان بالاست

[@tsnaw8173]

Mosh will there be a new react native course? Appreciate your hard work

[@betterstack]

Great tutorial as always Mosh! If anyone’s looking for more JavaScript tutorials, we’ve released JS logging in Winston and Pino to help the community too 💪

[@techsolutions4652]

This is a humble request for making a playlist for Docker and AWS. Thanks in advance.

[@Funny_bunny999]

OMG, You are getting younger day by day. However, sir you are an amazing teacher.

[@JunaidKhan-hy5rr]

Mosh Please upload project base courses on your websites, also courses on AWS

[@minimalsforlife740]

Love u from the core of my fucking body cells. Im turned into a usd printing machine since I have become a react developer after I started learning to code using ur cources. Hope to see u in paradise in the other world Mosh❤🎉

[@iffalcontcl6738]

Hi mosh it would be greatful if you create a course on Machine learning. There is no clear path im seeing, i want the course like how you package things everything as one go ive purchased your react course its great everything is packaged very well. Kindy please consider this request.

[@athulliapaulose]

Waiting for the react testing course ❤

[@AbhishekGupta-ji4pf]

Mosh sir, can you please do a comprehensive course on Springboot. Please, its a must after your Java course. Thanks.

[@salamesalehpour]

دمت گرم

[@monkamkelvin9115]

Mosh please your flutter course

[@abdullaalfaiyaz1890]

Hi mosh Are there any discounts available for your monthly all course subscription?

[@anasouardini]

I was about to learn Jest when I switched to wordpress since it appears that it's the only way to get a job as a junior.

[@ghaatol]

Mosh it's amazing watching your tutorials, I've learned a lot from you, can you please share your bashrc file with me.

[@sina127458]

Hi mosh, Thanks to you for your videos. I from Iran and want to join coding world. But honestly I don't know with coding language is suitable for me. I like mobile app creating but I don't have any idea if the job market good or not. Can you please help me take the first step?

[@abzz1290]

Hi, Which extensions are you using? if anyone know please do share.

[@SRTIEP]

Flutter Mosh Please ❤

[@malikarandolph8187]

I’m a beginner but want to eventually learn how to make my own daily planner mobile app that can be used on Android & iOS. I’ve been watching some of your videos and I love your teaching style. I’ve paid for the All Access Pass on your website but don’t know where to start. What languages should I learn to build my app?

[@hk254lyt8]

JavaScript

[@tofaelahmed8255]

Plz give us a tutorial about asynchronous JavaScript

[@ashikahmedfahim232]

Flutter course please

[@muhammadayazfaisal6786]

Sir Mosh can you please make a one huge project on JavaScript that covers every things like DOM, async, await and promises ,events and many more things.

[@Bhushantbn]

Which vs code theme you used??

[@aminghasemi2621]

Hey mosh, Is it possible for you to create a NodeJS course with typescript and nest? I mean the nodejs full course is already awesome. But it could be much much better if you add these mastersy topics as well.

[@programmingwithmosh]

Great suggestion!

[@alfurquanzahedi8338]

@programmingwithmosh can you please make a course on system design

[@user-xq8jq2ex8y]

Hello Mosh, the course 'Angular 4: Beginner to Pro' can not be loaded. Could you check it?

[@LearnwithSSRK]

Pls upload JavaScript full tutorial video

[@user-zc1xh4sj7n]

Dang, u really know what your fans want

[@user-cg4ft5op9w]

Is there a translation of the video into Arabic on your platform? I want to take the Django course???

[@SabonaMarara]

please i need full course thanks

[@ishimweisaac1019]

This 40 mins was worth watching

[@minimalsforlife740]

Pls add course for ci/cd and docker for frontemd devs

[@user-ze5ou8se6i]

Flutter course would be a killer

[@gd6noob]

Windows vs macOS vs Linux for programming, which do you use and why?

[@ayushmangarg2]

Please make a AIML course please

[@adityapatil4287]

Is spring boot still in demand in 2024. If yes Sir Mosh can we get a dedicated course on this topic. Please..!!!🙏

[@raghavenderkuppireddy7158]

❤❤❤❤❤❤

[@LokeshKumar-tk7ri]

Sir i have been asking for many months for a Complete DSA course using Javascript

[@merzadev]

He already published a DSA course using Java they is no need i guess. Don't be married to the languages my thought

[@fatokihabeeb4254]

hello Mosh sir i want to buy your course online but my card and country dosent support international transaction. ill like to know if i can buy the course with crypto currency i really need a fast reply from you sir.

[@agatanor]

do you recommend vue js or react for beginners?

[@_rachid]

Both are great. But you have to make your choice between the two based on the demand in the market you are targeting.

[@user-zm1of2sf1s]

react next

[@mryasinize]

But Mosh, how can I write tests for tests?

[@nicolasm.bronner2747]

You lost me on the "terminal" part... what terminal ? If it's on VS Code, it return an error 😥

[@noorsajee7376]

Bro, I'm confused I watched the 48 minutes to learn JavaScript for beginners, i need practical videos to get me an examples from the practical life , to get me better to work as a frontend developer, please can you guide me I'm lost

[@tomu_sange]

I think this course is mine.

[@user-cg4ft5op9w]

هل يوجد في منصتكم خاصيه الترجمه للغه العربيه

[@deatho0ne587]

Your test are only testing the good cases. What about if a new dev uses those functions that expect numbers but pass an array, string, an object, or something else? I agree with not over-engineering but this is still an issue with Unit test. They give a sense that the code is good but do not always make sure your code will not have bugs.

[@programmingwithmosh]

I’ve covered those in the full course.

[@flywithoutwingss]

I just missed the early price 😅

[@neciyvavian5223]

Is this beginners course, you need to really check the Java unit testing because when it come down to Fizz Buzz im getting fail test, im copy everything you did, and it feel like my money is wasted. No type of contact, I feel this is a scam😢

[@ojomudamola6674]

How can subscribe with my Nigerian master card on your website, pls i really need this. Pls any discount, exchange rate is really high for a dollar to a naira

[@aryanmangi9707]

Hey mosh let's talk business

[@rafeeqshaik7355]

Micro services course using nodejs. 😢😢

[@s.joseph4838]

after i finish intro.test.js i go to my terminal and type npm t i get this error: Failed to load url ../src/intro (resolved id: ../src/intro) in C:/Users/snaus/javascript-testing-starter/src/tests/intro.test.js. Does the file exist? please help[

[@fatokihabeeb4254]

hello Mosh sir i want to buy your course online but my card and country dosent support international transaction. ill like to know if i can buy the course with crypto currency i really need a fast reply from you sir.