Hasty Treat - Slow Connections Part 2

In this Hasty Treat, Scott and Wes are back with part 2 on how to develop for slow internet connections. Kyle Prinsloo Freelancing - Sponsor Kyle Prinsloo teaches you everything you need to know about freelancing, including how to quit your job, earn a side-income and start taking control of your life. Check it out at studywebdevelopment.com/freelaning. Use the coupon “SYNTAX” and get 25%. Show Notes 03:27 - Images Resize client-side when uploading Lazy load or progressive JPG Width + height so the content doesn’t shift with placeholders Compress your images - lossless and lossy Use SVG where possible 08:33 - Scripts + CSS assets Hasty Treat - 5 Things That Make Your Site Slow

Hasty Treat - 5 More Things That Make Your Site Slow

08:51 - Video Variable-rate video is key 09:13 - Connections that go in-n-out a lot Save form state on page refresh Show UI when user goes offline window.addEventListener('offline', updateOnlineStatus); window.addEventListener('online', updateOnlineStatus); Retrying in _____ 10:27 - Service workers! Serves up local cache initially 12:05 - Fonts Font-display CSS https://css-tricks.com/font-display-masses/

Sometimes possible: tree shake your fonts - load only the characters you need font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif; 14:04 - CSS tricks Text over background image — make sure you also set a color so the text will show while the image is loading 14:37 - Testing slow connections Dev tools Mimic a speed, or 3G Links ImageOptim

Slack

Discord

Cloudflare

Workbox by Google

Chrome Dev Tools

Firefox Dev Tools

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