New to JavaScript — ES2022
Syntax - Tasty Web Development Treats15 Syys 2021

New to JavaScript — ES2022

In this episode of Syntax, Scott and Wes talk about all the new stuff in ES2022 — what it is, why you might need it, and how to use it. Sanity - Sponsor Sanity.io is a real-time headless CMS with a fully customizable Content Studio built in React. Get a Sanity powered site up and running in minutes at sanity.io/create. Get an awesome supercharged free developer plan on sanity.io/syntax. LogRocket - Sponsor LogRocket lets you replay what users do on your site, helping you reproduce bugs and fix issues faster. It’s an exception tracker, a session re-player and a performance monitor. Get 14 days free at logrocket.com/syntax. Auth0 - Sponsor Auth0 is the easiest way for developers to add authentication and secure their applications. They provides features like user management, multi-factor authentication, and you can even enable users to login with device biometrics with something like their fingerprint. Not to mention, Auth0 has SDKs for your favorite frameworks like React, Next.js, and Node/Express. Make sure to sign up for a free account and give Auth0 a try with the link below: https://a0.to/syntax. Show Notes 04:50 - Regex indicies New d flag in a regex https://regex101.com/ This will tell you the indexes (indicies) of the regex matches Handy if you need to highlight or replaces matches in a string We can ask for the start and end positions of each matched capture group 07:16 - Class updates Private fields Properties and Methods to be kept private Prefix them with a # =Helpful for internal state and methods which should not be accessed directly or at all by external In React how we have __INTERNTAL_NEVER USE THIS class ColorButton extends HTMLElement { // All fields are public by default color = "red" // Private fields start with a #, can only be changed from inside the class #clicked = false } const button = new ColorButton() // Public fields can be accessed and changed by anyone button.color = "blue" // SyntaxError here console.log(button.#clicked) // Cannot be read from outside button.#clicked = true // Cannot be assigned a value from outside Getters and setters introduced in es5 https://www.w3schools.com/js/js_object_accessors.asp class Person { #hobbies = ['computers'] get #hobbiesGetter() { return this.#hobbies } #getHobbies() { return this.#hobbies } getHobbiesPublic() { return this.#hobbies } } const scott = new Person(); scott.#getHobbies(); // doesn't work scott.getHobbiesPublic(); // works 09:07 - Class fields This may seem super old because we have been polyfilling it forever Right now if you want an instance field on a class, you need to declare it in the constructor Now we can just declare them inside the class 10:36 - Static fields and methods As above can also be static with the static keyboard Works for methods too Explain what a static method is 13:17 - Top level await So handy in modules. Need to pull in some data? Simple. 15:19 - Ergonomic brand checks for private fields Used for checking if a private field on a class exists using the in keyword 16:00 - .at() method Strings and arrays - we can use square brackets to reference items of the array Super handy for grabbing the last item of an array // 🔥 New .at() method on arrays and strings const toppings = ['pepperoni', 'cheese', 'mushrooms']; // The old way to grab the last item toppings[toppings.length - 1]; // mushrooms // using .at() method with a negative index toppings.at(-1); // mushrooms // works with any index toppings.at(0); // pepperoni toppings.at(-2); // cheese // and with strings! 'Meeting Room: B'.at(-1) // B Why not use array[-1]? We used to use slice(-1) What about indexOf? 21:34 - Handy hasOwn method https://github.com/tc39/proposal-accessible-object-hasownproperty 24:51 - Class static block A static block allows you to run code before creating an optional static property during initialization https://github.com/tc39/proposal-class-static-block Links https://github.com/tc39/proposals/blob/master/finished-proposals.md ××× SIIIIICK ××× PIIIICKS ××× Scott: Ultraloq Smart Lock Wes: Magnatiles Shameless Plugs Scott: Web Components Course - Sign up for the year and save 25%! Wes: All Courses - Use the coupon code ‘Syntax’ for $10 off! Tweet us your tasty treats! Scott’s Instagram LevelUpTutorials Instagram Wes’ Instagram Wes’ Twitter Wes’ Facebook Scott’s Twitter Make sure to include @SyntaxFM in your tweets

Jaksot(970)

Fundamentals × What Makes a Website Slow?

Fundamentals × What Makes a Website Slow?

In this episode of Syntax, Wes and Scott talk through all the reasons your website might be slow, and how you can troubleshoot a slow website such as issues on the server, large assets, caching, CSS, JavaScript, latency, and more. Sentry - Sponsor If you want to know what’s happening with your code, track errors and monitor performance with Sentry. Sentry’s Application Monitoring platform helps developers see performance issues, fix errors faster, and optimize their code health. Cut your time on error resolution from hours to minutes. It works with any language and integrates with dozens of other services. Syntax listeners new to Sentry can get two months for free by visiting Sentry.io and using the coupon code TASTYTREAT during sign up. Show Notes 00:11 Welcome Glove 80 keyboard Raycast 03:06 Sponsor: Sentry 05:15 What makes a website slow? Uses.tech 06:29 Server Generation Times 13:33 Large payloads Redis Gzip Brotli compression Cloudflare Cloudinary 18:13 Assets being too large 23:01 Caching assets 28:25 CDN 30:35 Caching 101 37:04 Render blocking requests 40:01 CSS 42:25 JavaScript 44:51 Latency 49:17 Flash of dark mode or unsigned out 55:00 Data uris Content-visibility vite-plugin-singlefile Pool in your URL 58:11 SIIIIICK ××× PIIIICKS ××× ××× SIIIIICK ××× PIIIICKS ××× Scott: 3Blue1Brown Wes: Suavecito Firme Clay Pomade Shameless Plugs Scott: LevelUp Tutorials Wes: Wes Bos Tutorials Tweet us your tasty treats Scott’s Instagram LevelUpTutorials Instagram Wes’ Instagram Wes’ Twitter Wes’ Facebook Scott’s Twitter Make sure to include @SyntaxFM in your tweets

8 Maalis 20231h 5min

Node in the Browser × WebContainers + NodeBox

Node in the Browser × WebContainers + NodeBox

In this Hasty Treat, Scott and Wes talk about two new services that allow you to run Node in the browser, WebContainers + NodeBox. Why Node in the browser? How does it work? And what are the differences and limitations of the services? Sentry - Sponsor If you want to know what’s happening with your code, track errors and monitor performance with Sentry. Sentry’s Application Monitoring platform helps developers see performance issues, fix errors faster, and optimize their code health. Cut your time on error resolution from hours to minutes. It works with any language and integrates with dozens of other services. Syntax listeners new to Sentry can get two months for free by visiting Sentry.io and using the coupon code TASTYTREAT during sign up. Show Notes 00:25 Welcome 01:14 Sponsor: Sentry 02:45 Webcontainers and NodeBox Introducing WebContainers Code Sandbox CodePen Replit GitHub Codespaces 06:42 Why Node.js in the browser? 11:08 How does it work? 13:10 Clientside APIs 14:27 Using iFrame to proxy messages 17:39 Are these open source? 19:22 Differences between the two services 21:10 Wes to Figma, Scott to Penpot Figma Penpot 24:51 Limitations Tweet us your tasty treats Scott’s Instagram LevelUpTutorials Instagram Wes’ Instagram Wes’ Twitter Wes’ Facebook Scott’s Twitter Make sure to include @SyntaxFM in your tweets

6 Maalis 202329min

Supper Club × Visual Coding Languages With Steve Sewell

Supper Club × Visual Coding Languages With Steve Sewell

In this supper club episode of Syntax, Wes and Scott talk with Steve Sewell about Builder.io, Qwik, Partytown, and the tricks and tips he’s learned in building apps for the modern web. Show Notes 00:37 Welcome 01:14 Guest introduction Steve on Twitter Steve on GitHub Builder.io Builder.io/demo 04:07 Builder works with any tech stack? 06:29 Where is the structure of the site coming from? 07:28 What is Builder.io? 11:34 What’s the workflow for updating content? 13:03 What is Builder built in? Mobx 14:36 Moving from Figma to HTML 18:41 Is an app like this divs all the way down? 24:55 Stories of browser gremlins building? 26:29 Advice for anyone building drag and drop Fullstory 29:04 Does FPS play a part in development? 33:31 Do you use SVG? 36:15 Where does Qwik and Partytown fit into all of it? Qwik Partytown 46:45 How does accessibility play into Builder? 49:44 Supper club questions 54:30 SIIIIICK ××× PIIIICKS ××× ××× SIIIIICK ××× PIIIICKS ××× Dead Space Remake Tweet us your tasty treats Scott’s Instagram LevelUpTutorials Instagram Wes’ Instagram Wes’ Twitter Wes’ Facebook Scott’s Twitter Make sure to include @SyntaxFM in your tweets

3 Maalis 202359min

AI and Coding with ChatGPT

AI and Coding with ChatGPT

In this episode of Syntax, Wes and Scott talk about the current landscape of AI, how AI is trained, is AI going to take your job, who’s going to train AI, and adding AI to your applications. Sentry - Sponsor If you want to know what’s happening with your code, track errors and monitor performance with Sentry. Sentry’s Application Monitoring platform helps developers see performance issues, fix errors faster, and optimize their code health. Cut your time on error resolution from hours to minutes. It works with any language and integrates with dozens of other services. Syntax listeners new to Sentry can get two months for free by visiting Sentry.io and using the coupon code TASTYTREAT during sign up. Show Notes 00:11:10 Welcome 01:58:01 Sponsor: Sentry 03:16:05 What this episode is not going to be 07:36:11 The current landscape Chat GPT GitHub Copilot Warp Completions Midjourney Bing AI From Bing to Sydney Why a Chat with Bing Left Me Deeply Unsettled Tensorflow Stable Diffusion Amazing AI Dall E 15:26:11 Timeline of growth of AI AI Timeline 16:24:11 What is a model for AI? 24:20:11 How do you use AI? 33:14:00 Code brushes 35:57:18 Midjourney Yandex 40:13:18 Is it going to take your job? Canva Cal 50:22:19 Cost prohibitive 52:26:20 Who’s going to train the robots? 57:29:12 Adding AI to your apps 58:50:11 SIIIIICK ××× PIIIICKS ××× ××× SIIIIICK ××× PIIIICKS ××× Scott: Motion sensor Wes: Apple Watch Ultra Shameless Plugs Scott: LevelUp Tutorials Wes: Wes Bos Tutorials Tweet us your tasty treats Scott’s Instagram LevelUpTutorials Instagram Wes’ Instagram Wes’ Twitter Wes’ Facebook Scott’s Twitter Make sure to include @SyntaxFM in your tweets

1 Maalis 20231h 6min

Clean vs Sloppy Code

Clean vs Sloppy Code

In this Hasty Treat, Scott and Wes talk about the difference between sloppy code and clean code, how to establish rules for your code base, and how to enforce your rules. Sentry - Sponsor If you want to know what’s happening with your code, track errors and monitor performance with Sentry. Sentry’s Application Monitoring platform helps developers see performance issues, fix errors faster, and optimize their code health. Cut your time on error resolution from hours to minutes. It works with any language and integrates with dozens of other services. Syntax listeners new to Sentry can get two months for free by visiting Sentry.io and using the coupon code TASTYTREAT during sign up. Show Notes 00:24 Welcome 00:46 Sponsor: Sentry 01:51 Uses performance issues Uses.tech 04:23 Understand Sloppy Code 10:17 Syntax website timestamp issue 12:56 Establish rules to fix sloppy code 16:35 Adding a feature, do you refactor an unrelated function? 23:07 How do you enforce rules? GitHub Actions Tweet us your tasty treats Scott’s Instagram LevelUpTutorials Instagram Wes’ Instagram Wes’ Twitter Wes’ Facebook Scott’s Twitter Make sure to include @SyntaxFM in your tweets

27 Helmi 202328min

Supper Club × Astro 2.0 with Fred Schott

Supper Club × Astro 2.0 with Fred Schott

In this supper club episode of Syntax, Wes and Scott talk with Fred Schott about all things Astro v2.0. What is Astro and why should you use it? How do islands work? Images, edge, AI, error overlays, hybrid rendering, and more! Show Notes 00:40 Welcome 01:08 Guest introduction FredKSchott.com @Fredkschott on Twitter Fred on GitHub 02:17 What is Astro and why should someone use it? 04:57 What can you build with Astro? 06:11 What’s an island in content? 09:43 How do routes work with Astro? 12:30 How is Markdown handled in Astro? mdxjs 14:32 How does Astro work on the edge? 18:15 How does Astro v2 handle data fetching? 23:25 Integrations with Astro 26:38 Astro AI bot? AI Langchain 30:40 Error overlay design 36:10 What are some of the most important upgrades in v2? 37:18 Hybrid rendering 40:27 Astro’s image component Squoosh 44:39 What happened to snowpack? Pikapkg? 46:48 What is the financial model for Astro? 50:28 Supper Club questions Obsidian ××× SIIIIICK ××× PIIIICKS ××× Chat Langchain Shameless Plugs Astro Astro Discord Tweet us your tasty treats Scott’s Instagram LevelUpTutorials Instagram Wes’ Instagram Wes’ Twitter Wes’ Facebook Scott’s Twitter Make sure to include @SyntaxFM in your tweets

24 Helmi 202358min

Warp Terminal × Next Gen Terminals

Warp Terminal × Next Gen Terminals

In this episode of Syntax, Wes and Scott talk about why they’re digging Warp as their terminal app of choice, what the terminal is, and some of their wishlist items for Warp. Show Notes 00:09 Welcome 02:11 Disclaimers 04:17 What is the terminal? 06:54 What we’ve used for terminal Get Warp Hyper Terminal iTerm Alacritty 11:14 Terminal terminology CommandLinePowerUser.com WSL OhMyPosh OhMyZsh Starship Ion 17:35 The basic features of Warp 20:45 Autocomplete issues Fig 25:06 Sticky header 26:13 Blocks 29:17 The prompt 30:38 Sharing blocks and live sessions 32:29 AI Command Search AI Command search 35:51 Remote SSH 37:53 Window management Launch configurations 38:42 Workflows 40:19 The command palette 42:36 How does Warp make money? 43:54 Warp requires an account 46:09 Annoyances and wishlists 58:29 SIIIIICK ××× PIIIICKS ××× ××× SIIIIICK ××× PIIIICKS ××× Scott: 50 Pokemon Cards for $5 Wes: iPad Sorter Station Shameless Plugs Scott: LevelUp Tutorials Wes: Wes Bos Tutorials Tweet us your tasty treats Scott’s Instagram LevelUpTutorials Instagram Wes’ Instagram Wes’ Twitter Wes’ Facebook Scott’s Twitter Make sure to include @SyntaxFM in your tweets

22 Helmi 20231h 6min

Logging

Logging

In this Hasty Treat, Scott and Wes talk about the reasons why you should log errors, how it’s not just for debugging, where to save logs, and apps and packages to help with logging. Sentry - Sponsor If you want to know what’s happening with your code, track errors and monitor performance with Sentry. Sentry’s Application Monitoring platform helps developers see performance issues, fix errors faster, and optimize their code health. Cut your time on error resolution from hours to minutes. It works with any language and integrates with dozens of other services. Syntax listeners new to Sentry can get two months for free by visiting Sentry.io and using the coupon code TASTYTREAT during sign up. Show Notes 00:25 Welcome 01:37 Sponsor: Sentry 02:16 What is logging? Why log? 04:59 Logging isn’t just for debugging 08:22 What do we log? 13:34 What not to log 14:58 Development, staging, and production 17:36 Logging bots 19:33 Where to put logs 20:59 How to log Log Tail Paper Trail Sematext Logs DataDog Winston Pino Tweet us your tasty treats Scott’s Instagram LevelUpTutorials Instagram Wes’ Instagram Wes’ Twitter Wes’ Facebook Scott’s Twitter Make sure to include @SyntaxFM in your tweets

20 Helmi 202325min

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