New to JavaScript — ES2022
Syntax - Tasty Web Development Treats15 Sep 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

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927: AI Browsers, 100X Build Speed, Massive Svelte Update - Web Dev News

927: AI Browsers, 100X Build Speed, Massive Svelte Update - Web Dev News

Scott and Wes break down the latest in web dev news, from Amazon’s AI-powered VS Code fork and Node’s native TypeScript support, to Vite overtaking Webpack and Svelte’s newest async and remote features. They also cover big moves in developer tools, fresh browser experiments, and what these shifts mean for the future of coding. Show Notes 00:00 Welcome to Syntax! 04:08 Kiro. Kiro Video. 09:05 Node 22.18 allows TypeScript without compiler. 11:42 React Router RSC, Parcel + Vite Support. 12:56 Windsurf Bought for real this time. 14:25 Brought to you by Sentry.io. 14:49 Copyparty, the FOSS file server Codeparty Video Codeparty on GitHub. 23:22 Vite Overtakes Webpack. Evan You X Post. 25:16 Rolldown Vite. void0 Rolldown-Vite. 27:06 Claude Code pricing clamp down. Wes’ X Post. 30:07 Async svelte released. Async Svelte Discussion. 31:41 Remote Svelte Released. Remote Functions. 34:59 Trae Solo. 37:58 Perplexity Comet Browser. 43:07 Sick Picks + Shameless Plugs. Sick Picks Scott: Black Stuff. Wes: MEKOH Short Pressure Washer Gun with Swivel. Shameless Plugs Scott: Syntax on YouTube. Hit us up on Socials! Syntax: X Instagram Tiktok LinkedIn Threads Wes: X Instagram Tiktok LinkedIn Threads Scott: X Instagram Tiktok LinkedIn Threads Randy: X Instagram YouTube Threads

11 Aug 202551min

926: RSS Is NOT Dead

926: RSS Is NOT Dead

Scott and CJ explore why RSS still matters and how it’s more underused than outdated. They discuss how to self-host RSS readers, escape the noise of the modern web, and reclaim a cleaner, ad-free reading experience across devices. Show Notes 00:00 Welcome to Syntax! 01:09 Brought to you by Sentry.io 02:41 What is RSS and how does it work? RSS Atom (web standard) JSON Feed 06:14 Hosting your own RSS server: Miniflux, FreshRSS, and more Miniflux FreshRSS 11:00 Decluttering the web with article scraping 12:38 Best RSS clients for desktop and mobile Capy Reader Google Reader ReadKit Pocket is shutting down wallabag mymind 18:51 Where to find RSS feeds The Brutalist Report Programming Subreddit Hacker News BlueSky Shameless Plugs Syntax YouTube Channel: Cursor User Tries Claude Code Hit us up on Socials! Syntax: X Instagram Tiktok LinkedIn Threads Wes: X Instagram Tiktok LinkedIn Threads Scott: X Instagram Tiktok LinkedIn Threads Randy: X Instagram YouTube Threads

6 Aug 202529min

925: Scott & CJ’s Fave Productivity Apps & Web Apps

925: Scott & CJ’s Fave Productivity Apps & Web Apps

Scott and CJ go full productivity nerd, swapping notes on their favorite web apps for writing, coding, planning, and more. From terminals to to-do lists to dumb phones, it’s a deep dive into the tools powering their workflows. Show Notes 00:00 Welcome to Syntax! 00:35 Brought to you by Sentry.io. 01:56 Text to speech or speech to text. 02:20 Superwhisper. 08:29 Kiro. 16:16 CJ’s current editor preference. 17:59 Finding the right editor. 18:47 Terminals. 20:22 Ghostty. 24:16 Note-taking. 26:32 Obsidian. 30:24 Logseq. 31:03 Todo lists. 31:08 Tweek.so 34:42 Trello. 37:25 Notion Calendar. 38:55 Email. 43:21 FairEmail. 43:43 Dumb phones. 45:10 Olauncher 47:39 Audio Bookshelf. Hit us up on Socials! Syntax: X Instagram Tiktok LinkedIn Threads Wes: X Instagram Tiktok LinkedIn Threads Scott: X Instagram Tiktok LinkedIn Threads Randy: X Instagram YouTube Threads

4 Aug 202551min

924: Sync Engines and Local Data

924: Sync Engines and Local Data

Wes and Scott talk about local-first sync engines—why they matter, what makes apps feel fast, and which platforms stand out. From LiveStore to Convex to Instant DB, they break down the pros and cons of each and debate what the “next React” might look like in a local-first future. Show Notes 00:00 Welcome to Syntax! 01:52 Intro to local data: what makes apps feel fast 05:08 Could the next React be a local-first sync engine? 08:23 LiveStore 18:01 Zero 21:58 Instant DB 24:18 Brought to you by Sentry.io 24:43 Convex 27:54 ElectricSQL 29:48 PowerSync and PartyKit 30:51 Choosing the right sync engine 40:34 Sick Picks + Shameless Plugs Sick Picks Scott: Rummikub Wes: Headphone covers Shameless Plugs Syntax YouTube Channel Hit us up on Socials! Syntax: X Instagram Tiktok LinkedIn Threads Wes: X Instagram Tiktok LinkedIn Threads Scott: X Instagram Tiktok LinkedIn Threads Randy: X Instagram YouTube Threads

30 Juli 202546min

923: Getting the Most Out of AI Coding

923: Getting the Most Out of AI Coding

Scott and Wes share their top strategies for getting high-quality results from AI coding tools like Cursor, Claude, ChatGPT, and Windsurf. From better prompting to building reusable rule sets, they cover practical tips for making AI your most productive coding partner. Show Notes 00:00 Welcome to Syntax! Wes' Tweet 02:56 How to get the best results when using AI. 03:15 Scaffold it out yourself. 05:40 Be clear with your prompts. 07:45 Use XML tags around specific items 08:47 Utilize Rules like Cursor rules or Copilot rules. 13:20 Ask it to create some rules based on an existing codebase. 16:03 Break things down into clear concise actionable items. 17:22 Where to store your rules files. 18:37 Utilizing llm.txt files. 19:24 Context7. 20:28 Tag relevant files, functions, etc. 21:38 Feed logs back into the AI. 22:36 Logging Errors. 22:54 Brought to you by Sentry.io. 24:14 Long running chats get worse. Wes' Tweet Hit us up on Socials! Syntax: X Instagram Tiktok LinkedIn Threads Wes: X Instagram Tiktok LinkedIn Threads Scott: X Instagram Tiktok LinkedIn Threads Randy: X Instagram YouTube Threads

28 Juli 202526min

922: Pre-commit Hooks, requestAnimationFrame, Code Reviews, and More

922: Pre-commit Hooks, requestAnimationFrame, Code Reviews, and More

In this potluck episode of Syntax, Wes and Scott answer your questions about code reviews, migrating legacy apps, CSS attr() use cases, pre-commit hooks, the future of creative web development, whether front-end devs need to be full-stack, and more! Show Notes 00:00 Welcome to Syntax! 00:43 When is the appropriate time to use requestAnimationFrame? 05:10 How do you handle code reviews on larger teams? 13:08 When to use the CSS attr() function 19:01 The future of browsing websites and the impact of AI 28:45 Brought to you by Sentry.io 29:10 Navigating browser preview in VS Code 31:31 Pre-populating email content with mailto 34:29 Is there increasing pressure for front-end developers to become full-stack? 43:14 What pre-commit checks should you run and how? 46:16 How do you deal with a poorly-built codebase when you already have thousands of active users? 50:05 What GitHub Copilot features should you disable while you’re learning something new? 52:22 Sick Picks + Shameless Plugs Sick Picks Scott: WOLFBOX MF100 Electric Air Duster Wes: Competition Kettlebells Shameless Plugs Syntax YouTube Channel Hit us up on Socials! Syntax: X Instagram Tiktok LinkedIn Threads Wes: X Instagram Tiktok LinkedIn Threads Scott: X Instagram Tiktok LinkedIn Threads Randy: X Instagram YouTube Threads

23 Juli 202558min

921: AI Coding Roadmap for Newbies (And Skeptics)

921: AI Coding Roadmap for Newbies (And Skeptics)

Scott and Wes break down how to code with and for AI; perfect for skeptics, beginners, and curious devs. They cover everything from Ghost Text and CLI agents to building your own AI-powered apps with embeddings, function calling, and multi-model workflows. Show Notes 00:00 Welcome to Syntax! 03:56 How to interface with AI. 04:07 IDE Ghost Text. 05:45 IDE Chat, Agents. 08:00 CLI Agents. Claude Code. Open Code. Gemini. 11:13 MCP Servers. Context7 14:47 GUI apps. v0. Bolt.new. Lovable. Windsurf. 19:07 Existing Chat app like ChatGPT. 22:37 Building things WITH AI. 23:32 Prompting. 26:53 Streaming VS not streaming. 28:14 Embeddings and Rag. 31:09 MCP Server. CJ’s MCP Deep Dive. 32:36 Brought to you by Sentry.io. 33:25 Multi-model, multi-provider. 36:27 npm libs to use to code with AI. OpenAI SDK. AI SDK. Cloudflare Agents. Langchain. Local AI Tensorflow. Transformers.js. Huggingface. 44:12 Processes and exploring. Hit us up on Socials! Syntax: X Instagram Tiktok LinkedIn Threads Wes: X Instagram Tiktok LinkedIn Threads Scott: X Instagram Tiktok LinkedIn Threads Randy: X Instagram YouTube Threads

21 Juli 202548min

920: How to Build MCP Servers

920: How to Build MCP Servers

Wes and Scott talk about how developers can expose powerful tools to AI using the Model Context Protocol. They discuss tool calling, remote MCP specs, authentication, and real-world use cases that make AI more capable through smarter integrations. Show Notes 00:00 Welcome to Syntax! 01:36 What is MCP? 07:23 MCP tools 11:33 MCP resources 13:43 Saving reusable prompts 16:18 Creating and validating MCP tools 18:31 Brought to you by Sentry.io 18:31 Tool calling vs MCP servers 21:28 Remote vs local MCP servers mcp-remote 26:24 Useful MCP servers mcp-server-cloudflare use-mcp awesome-mcp-servers 32:48 Sick Picks + Shameless Plugs Sick Picks Scott: Mario Kart World Wes: anyloop Kid’s Watch Shameless Plugs Syntax YouTube Channel Hit us up on Socials! Syntax: X Instagram Tiktok LinkedIn Threads Wes: X Instagram Tiktok LinkedIn Threads Scott: X Instagram Tiktok LinkedIn Threads Randy: X Instagram YouTube Threads

16 Juli 202537min

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