JSJ 411: Unit Testing Jest with Daniel Caldas

JSJ 411: Unit Testing Jest with Daniel Caldas

Daniel Caldas is calling from Singapore. He currently works as a software engineer for Zendesk and has also worked in Portugal and Germany. He has worked primarily on the frontend with Node and JavaScript. He talks about his experience testing JavaScript, how he got started with Jest, and why he likes it. Daniel finds Jest very easy to use and straightforward. He likes that Jest has a single reference page for documentation. He feels that Jest is largely complete out of the box and has only made a small add on to get rid of Boilerplate in some tests.Daniel explains what a snapshot, how they work, and why he prefers fixtures over factories. He gives tips on how to set up your tests so that they are easy to follow. He finds it helps to structure your scenarios in the fixture description. He talks about gotchas in Jest. While Jest is largely easy to use, Jest has been around for a while and breaking changes do happen. It’s important to check what version your code base is using. While there are a lot of free sources around Jest online, he advises listeners to stick as close to the official documentation as possible, or to people associated with Jest, and to read recent stuff. As for conventions, Jest has pretty much everything out of the box and the built in conventions make it easy to navigate any project that uses Jest.Daniel talks about some of the features available in Jest, converting observables into promises, and tricks he has used to make tests easier to put together. He talks about his method for keeping his mocks and stubs straight. He advises listeners to have some organizational rules, such as starting the imports alphabetically, and to always follow those rules. He talks about how he runs tests and what environments he uses. While Jest is normally used for unit testing, Daniel has also used it for end to end tests, and he talks about his experience with an open source project doing both types in Jest. Daniel concludes the show by advising listeners starting with JavaScript and frontend, don’t think too much about the library you’re going to use because you’ll probably end up using Jest. It’s more important to have unit tests and a proper testing framework at the beginning than anything else. He also invites listeners to check out his open source work on Github.Panelists
  • Aimee Knight
  • AJ O’Neal
  • Charles Max Wood
**To receive your 40% OFF coupon for Manning Publications (good for all our products in all formats) visit us on Facebook - click on "Send A Message"and type "YES"**Guest
  • Danile Caldas
Sponsors
  • Sentry | Use the code “devchat” for $100 credit
LinksPicksAimee Knight:AJ O’Neal:Charles Max Wood:Daniel Caldas:Special Guest: Daniel Caldas.

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JSJ 463: Building Web Applications with Firebase

JSJ 463: Building Web Applications with Firebase

Steve and AJ talk with Gareth Brown, author of the recently released Manning video course “Building Web Applications with Firebase”. They discuss what Firebase is, the services it offers, and how it is used in different types of applications, both large and small.PanelAJ O’NealSteve EdwardsGuestGareth BrownSponsorsRaygun | Click here to get started on your free 14-day trialLinksBuilding a notes API with Firebase Functions - Part 1Simple Class ListPicksAJ- Zelda Plush DollAJ-Bokoblin Plush DollsAJ- Everything GameCube Homebrew in 6 Minutes!AJ- webinstall.devSteve- OutkickGareth- Rabbit Hole by New Yok TimesGareth- The Social DilemmaGareth-Screened outSpecial Guest: Gareth Brown.Sponsored By:Raygun: Raygun now offers Real User Monitoring of Core Web Vitals. Start your 14-day free trial now.Support this podcast at — https://redcircle.com/javascript-jabber/donationsPrivacy & Opt-Out: https://redcircle.com/privacyBecome a supporter of this podcast: https://www.spreaker.com/podcast/javascript-jabber--6102064/support.

23 Dec 202059min

BONUS: Start Building Video Games with Jason Weimann

BONUS: Start Building Video Games with Jason Weimann

Learn to Build Your Own Games with Jason's Course (Get 10% Off with Code DEVCHAT)Over the years, I've had dozens of developers tell me that they got into programming because they wanted to build video games. Today, it's easier and more approachable than ever. This episode dives into how to get started with game development.Jason Weimann has built games for big studios and has been teaching others to build video games with the Unity game engine. Jason talks through his journey into game development and explains how others can get started with building all sorts of games using the Unity game engine.You can get started prototyping a game by dragging a few elements in and writing a minimal amount of C#. Chuck and Jason compare front-end components to game components and then explain the ins and outs of building and designing a game. Learn to Build Your Own Games with Jason's Course (Get 10% Off with Code DEVCHAT) Support this podcast at — https://redcircle.com/javascript-jabber/donationsPrivacy & Opt-Out: https://redcircle.com/privacyBecome a supporter of this podcast: https://www.spreaker.com/podcast/javascript-jabber--6102064/support.

11 Dec 202031min

JSJ 462: The Ultimate Guide to JavaScript Testing with Lucas da Costa

JSJ 462: The Ultimate Guide to JavaScript Testing with Lucas da Costa

Testing JavaScript Applications by Lucas da Costa (Coupon for 40% off: podjsjabber19)Lucas da Costa literally wrote the book on testing JavaScript. He's also maintainer on ChaiJS and Sinon. The podcast follows a three part structure for testing: Entrance tests, integration tests, and structural tests. These form a pyramid of testing that has the entrance tests at the base and the structural and system tests at the top. The episode also covers TDD and approaches to different kinds of JavaScript testing.PanelAJ O’NealAimee KnightSteve EdwardsGuestLucas da CostaSponsorsAudible.comRaygun | Click here to get started on your free 14-day trialLinksTesting JavaScript Applications bookLucas' WebsiteLucas' Terminal GuideWhy Flat Earthers are Bad at QAPicksLucas - HiDPI (Retina) on any displayLucas - RDM:Lucas - Quartz Debug (XCode Additional Tools)Aimee - Vanilla-todoAJ - iTerm2AJ - Fish ShellAJ - Cloud Encabulator linkSteve - https://www.youtube.com/watch?v=BRupqYXNUVwLucas - The Sense of Style by Steven Pinker (Audiobook)Lucas - On Writing WellLucas - Actionable Agile Metrics For Predictability: An IntroductionLucas - https://github.com/neovim/neovimTesting JavaScript Applications by Lucas da Costa (Coupon for 40% off: podjsjabber19)Special Guest: Lucas F. Costa.Sponsored By:Raygun: Raygun now offers Real User Monitoring of Core Web Vitals. Start your 14-day free trial now.Support this podcast at — https://redcircle.com/javascript-jabber/donationsPrivacy & Opt-Out: https://redcircle.com/privacyBecome a supporter of this podcast: https://www.spreaker.com/podcast/javascript-jabber--6102064/support.

8 Dec 20201h 10min

BONUS: Adding a Content Engine to Your App with a Headless CMS with Jake Lumetta

BONUS: Adding a Content Engine to Your App with a Headless CMS with Jake Lumetta

Go Check Out ButterCMS to Add Content to Your Apps!Do you need to add a content engine like a blog or podcast to your product’s website? Don’t want to maintain a separate WordPress installation? Why not use a Headless CMS?Jake Lumetta from ButterCMS joins Charles Max Wood to discuss how Headless CMS’s work and how they can add functionality to your application with a minimum of effort and very little maintenance. They also compare Headless CMS’s to the alternatives and explain when one choice is better for a team than the other.Go Check Out ButterCMS to Add Content to Your Apps!Support this podcast at — https://redcircle.com/javascript-jabber/donationsPrivacy & Opt-Out: https://redcircle.com/privacyBecome a supporter of this podcast: https://www.spreaker.com/podcast/javascript-jabber--6102064/support.

4 Dec 202023min

JSJ 460: The Things Every JavaScript Developer Must Know, Part 2

JSJ 460: The Things Every JavaScript Developer Must Know, Part 2

The panel continues its discussion of various JavaScript programming topics, and whether or not they are required knowledge for JavaScript programmers. This time the debate gets even more heated with topics such as promises and async / await, regular expressions (regex), the DOM and Service Workers. Ultimately we conclude that some you must indeed know to be successful at JavaScript development, but some you just need to know enough about to know to stay away from them.PanelAJ O’NealAimee KnightSteve EdwardsDan ShappirCharles Max WoodLinksJSJ 449: The Things Every JavaScript Developer Must Knowhttps://stackoverflow.com/a/1732454/151312PicksAimee - The MarkupAimee - Yasso Frozen YogurtDan - picks Steve Edwards (volunteer firefighter) for his service and saving livesAJ - XKCD DependencyAJ - YC’s How to Start a StartupAJ - https://webinstall.dev/arcAJ - https://webinstall.dev/un7z (still not working)AJ - HarakaAJ - EmkeiAJ - MxtoolboxAJ - Mail-tester.comAJ - https://blog.codinghorror.com/so-youd-like-to-send-some-email-through-code/Steve - https://blog.logrocket.com/new-features-in-vue-3-and-how-to-use-them/Charles - https://brendon.com/podcast/Charles - https://stimulusjs.org/Charles - https://github.com/alpinejs/alpineSupport this podcast at — https://redcircle.com/javascript-jabber/donationsPrivacy & Opt-Out: https://redcircle.com/privacyBecome a supporter of this podcast: https://www.spreaker.com/podcast/javascript-jabber--6102064/support.

1 Dec 20201h 12min

BONUS: How to do LARGE Volumes of HIGH Quality Work - While Spending Fewer Hours Working

BONUS: How to do LARGE Volumes of HIGH Quality Work - While Spending Fewer Hours Working

Get the Black Friday/Cyber Monday "Double Your Productivity by 5pm Today" Deal Coupon Code: "DEEP" for a GIANT discountMani provides us with strategies and tactics to get Deep Work time and how to get our minds into that focused state for hours at a time.He has read hundreds of books that have taught him the secrets to getting more done by getting into this state.He starts by telling us how he was passed over for a promotion at Qualcomm in favor of someone younger and less experienced and how that inspired him to figure out what the other guy was doing differently. He learned that he needed to get more done with the time he was spending on his projects.The trick? Deep Work!Deep Work is the ability to spend uninterrupted, focused time on a task to bend your entire mind toward the goal.Other developers call it "Flow" or "the Zone."Mani provides us with strategies and tactics to get Deep Work time and how to get our minds into that focused state for hours at a time. Get the Black Friday/Cyber Monday "Double Your Productivity by 5pm Today" Deal Coupon Code: "DEEP" for a GIANT discount Support this podcast at — https://redcircle.com/javascript-jabber/donationsPrivacy & Opt-Out: https://redcircle.com/privacyBecome a supporter of this podcast: https://www.spreaker.com/podcast/javascript-jabber--6102064/support.

27 Nov 202047min

JSJ 459: Codota Tabnine and the Rise of Ai-powered Developer Tooling with Kyle Simpson PT 2

JSJ 459: Codota Tabnine and the Rise of Ai-powered Developer Tooling with Kyle Simpson PT 2

Imagine a world in which your editor / IDE can actually write some of your code for you. Where you're able to produce software faster and more efficiently because your development environment "knows" what you want to do, based on code you've written before. Turns out you can start experiencing this in the present using the free TabNine editor extension by Codata. In this episode Kyle Simpson, Codata's Lead of Developer Empowerment, joins the panel to describe how they use Machine Learning to enhance and accelerate software development. Kyle explains what's already possible in the present, and what ML technology promises to enable in the future for developer experience.PicksAimeeTerraform cost estimation: https://github.com/antonbabenko/terraform-cost-estimationDanhttps://www.se.rit.edu/~tabeec/RIT_441/Resources_files/How To Write Unmaintainable Code.pdfKylehttps://medium.com/nmc-techblog/introducing-the-async-cookie-store-api-89cbecf401fAJ3-Wolf Moon: https://amzn.to/3dGkRE6Watchexec: https://webinstall.dev/watchexecDotenv: https://webinstall.dev/dotenvSpecial Guest: Kyle Simpson. Support this podcast at — https://redcircle.com/javascript-jabber/donationsPrivacy & Opt-Out: https://redcircle.com/privacyBecome a supporter of this podcast: https://www.spreaker.com/podcast/javascript-jabber--6102064/support.

24 Nov 202045min

JSJ 458: Codota Tabnine and the Rise of Ai-powered Developer Tooling with Kyle Simpson

JSJ 458: Codota Tabnine and the Rise of Ai-powered Developer Tooling with Kyle Simpson

Imagine a world in which your editor / IDE can actually write some of your code for you. Where you’re able to produce software faster and more efficiently because your development environment “knows” what you want to do, based on code you’ve written before. Turns out you can start experiencing this in the present using the free TabNine editor extension by Codata. In this episode Kyle Simpson, Codata’s Lead of Developer Empowerment, joins the panel to describe how they use Machine Learning to enhance and accelerate software development. Kyle explains what’s already possible in the present, and what ML technology promises to enable in the future for developer experience.SponsorsRaygun | Click here to get started on your free 14-day trialAudible.comCacheFlyPanelAJ ONealAimee KnightDan ShappirSpecial GuestKyle SimpsonLinkstabnine AI autocomplete with Vim (REACTION)How To Write Unmaintainable CodePicksAimeeTerraform cost estimationAJ3-Wolf MoonWatchexecDotenvKyle SimpsonIntroducing: The Async Cookie Store API Follow JavaScript Jabber on Twitter: @JSJabber Special Guest: Kyle Simpson.Sponsored By:Raygun: Raygun now offers Real User Monitoring of Core Web Vitals. Start your 14-day free trial now.Support this podcast at — https://redcircle.com/javascript-jabber/donationsPrivacy & Opt-Out: https://redcircle.com/privacyBecome a supporter of this podcast: https://www.spreaker.com/podcast/javascript-jabber--6102064/support.

17 Nov 202057min

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