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TWiW|2.2.20 #104

This week we take a look at animating the width and height of an element without distortion, measuring and optimising web performance and more!

 

Enjoy 🎉

Animating CSS width and height without the squish effect
CSS

Animating CSS width and height without the squish effect

By Rik Schennink
Rik Schennink shares his technique on how to animate the width and height of an element - leaning on 9-slice scaling.
When to useMemo and useCallback
JavaScript

When to useMemo and useCallback

By Kent C. Dodds
Performance optimizations always come with a cost but do not always have a benefit. Kent C. Dodds discusses the costs and benefits of useMemo and useCallback.
Measure and optimise performance and user experience
Web

Measure and optimise performance and user experience

By web.dev
If you can't measure it, you can't improve it, this 101 from web.dev covers how to measure modern web performance metrics & optimise for them.
Jason Miller on Modern JavaScript and the Future of preset-env
Podcast

Jason Miller on modern JavaScript and the future of preset-env

By BabelJS
The team talk through a high level philosophy of transpilers, Babel’s core mental model and all nuances of the relationship between developers, TC39 etc. They take a look at the future of Babel through preset-env with the newly released @babel/preset-modules.
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