progressive web apps

In this episode of Syntax, Wes and Scott look at the the Web Almanac’s report on the role of JavaScript on the web in 2022.

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

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.

Freshbooks - Sponsor

Get a 30 day free trial of Freshbooks at freshbooks.com/syntax

Show Notes

• 00:11 Welcome
• 01:17 College football update
• 04:07 Web almanac for 2022
• JavaScript in the 2022 Web Almanac
• 06:25 Unused JavaScript
• 07:47 JavaScript requests per page
• 09:38 Bundlers
• 14:01 Pages using Babel
• 16:01 How JavaScript is requested
• 19:22 Sponsor: Sentry
• 20:56 Loading render blocking tags
• 22:48 Dynamic import, web workers, source maps
• 24:33 Libraries and frameworks
• Owl Carousel
• Lazy Sizes
• 29:30 Websites using web components
• 31:35 Websites with JavaScript security issues
• 32:43 Sponsor: Auth0
• 33:58 Jamstack
• 37:09 JavaScript used by Jamstack sites
• 38:03 Jamstack hosting
• 39:46 Popular Static site generators
• 44:49 Progressive web apps and service workers
• 50:29 jQuery inside WordPress themes
• WeCrashed
• 51:13 Project Fugu
• Project Fugu
• 52:51 Web push notifications
• 55:49 CMSs
• 00:45 Sponsor: Freshbooks
• 01:40 SIIIIICK ××× PIIIICKS ×××

××× SIIIIICK ××× PIIIICKS ×××

• Scott: White Lotus
• Wes: Ubiquiti

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

In this episode of Syntax, Scott and Wes talk about what’s new in web development: new promise static methods, new CSS functions, PWAs and more!

Sentry - Sponsor

If you want to know what’s happening with your errors, track them with Sentry. Sentry is open-source error tracking that helps developers monitor and fix crashes in real time. Cut your time on error resolution from five hours to five minutes. It works with any language and integrates with dozens of other services. Syntax listeners can get two months for free by visiting Sentry.io and using the coupon code “tastytreat”.

Clubhouse - Sponsor

Clubhouse is the first project management software that brings everyone together so that teams can focus on what matters: creating products that customers love. Clubhouse provides a perfect balance of simplicity and structure for better cross-functional collaboration. Check out https://clubhouse.io/syntaxpodcast and get your first two months free.

Show Notes

5:38 - New Promise static methods

• Promise.all
• Promise.race()
• Promise.allSettled()
• Promise.any()

10:16 - Lazy loading images

• Addy Osmani’s Lazy-Loading blog post

14:25 CSS Houdini aka JS in CSS

• • CSS Houdini Experiments

20:32 - Subgrid

• Syntax 109: Hasty Treat - CSS Grid Level 2 aka Subgrid
• Subgrid is coming to Firefox - Jen Simmons
• Bugzilla

24:31 - Native modules in browser

• type="module"
• dynamic import()

27:08 - Node Native Modules update

• package.json will now have a type entry where
• NodeJS - Plan For New Modules Implementation
• New ESM Implementation

29:17 - PWA install app and Google PlayStore

• Already shipped in Chrome
• Java API that communicates through services with Chrome
• Trusted Web Activity aka TWA
• All content in TWAs must comply with Play store policy including policies for payments in-app purchases and other digital goods
• Already existing TWAs include Twitter Lite, Google Maps Go, Instagram Lite
• Passing the PWA Criteria
• Performance Score with a minimum of 80/100, tested with Lighthouse
• All current Google Play Store rules

35:49 - CSS Scroll Snap

• In many browsers already
• scroll-padding

38:17 - Aspect Ratio Unit

• Designing An Aspect Ratio Unit For CSS

39:32 - CSS nesting

• Disallows cross-domain cookies unless on the same domain/subdomain

Links

• Gatsby
• Promise.allSettled()
• Promise.any()
• Apollo
• CodePen
• UC Browser
• Parcel
• Node.js
• Myles Borins’ Twitter
• Twitter Lite
• Google Maps Go
• Instagram Lite
• Lighthouse
• Opera
• Can I Use - modules
• Apple’s ITP

××× SIIIIICK ××× PIIIICKS ×××

• Scott: Finding Drago
• Wes: The Punk Rock MBA

Shameless Plugs

• Scott’s Gridsome Course
• Wes’ Courses

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

Scott and Wes dive into the ins and outs, best practices and tasty tidbits of Progressive Web Apps.

Freshbooks - Sponsor

Get a 30 day free trial of Freshbooks at freshbooks.com/syntax and put SYNTAX in the “How did you hear about us?” section.

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 replayer and a performance monitor. Get 14 days free over at https://logrocket.com/syntax

Show Notes

2:00

• What’s the deal with the GitHub / Microsoft acquisition?

6:05

• What is a Progressive Web App?

8:55 - Progressive Web App Checklist

What are the baseline features for a Progressive Web App?

09:25

• Site is served over HTTPS
• Let’s Encrypt

11:05

• Pages are responsive on tablets & mobile devices

11:35

• All app URLs load while offline
• Use a Service Worker

16:35

• Metadata provided for Add to Home screen

18:40

• First load fast even on 3G

20:00

• Site works cross-browser

20:15

• Page transitions don’t feel like they block on the network

22:20

• Each page has a URL

What makes an exemplary Progressive Web App?

27:42

• All content is indexed by Google

28:38

• Schema.org metadata is provided where appropriate
• Social metadata is provided where appropriate

29:42

• Canonical URLs are provided when necessary

User experience

31:43

• Content doesn’t jump as the page loads
• Scott’s Pro Gatsby Course

36:52

• Pressing back from a detail page retains scroll position on the previous list page

37:34

• When tapped, inputs aren’t obscured by the on screen keyboard

The Best of the rest

38:22

• Content is easily shareable
• Site is responsive
• Any app install prompts are not used excessively
• The Add to Home Screen prompt is intercepted

39:20

• Use cache-first networking

Device APIs

40:34

• Web RTC
• Get User Media

41:50

• Push API

45:12

• Accelerometer
• GPS

45:55

• Payment Request API

47:12

• Local Storage

48:03

• IndexedDB

48:35

• StorageManager

51:45

• Vibration API

52:58

• Use Lighthouse to improve the quality of your web apps

××× SIIIIICK ××× PIIIICKS ×××

• Scott: myNoise
• Wes: Ozark Trail Drinkware

Shameless Plugs

• Scott’s Level 2 React Course
• Wes’ Courses

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