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Hasty Treat - Old Browsers, Fallbacks and Polyfills - Part 3

 2 years ago
source link: https://syntax.fm/show/087/hasty-treat-old-browsers-fallbacks-and-polyfills-part-3
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Oct 29th, 2018

Hasty Treat - Old Browsers, Fallbacks and Polyfills - Part 3

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In this Hasty Treat, Scott and Wes conclude a three-part series about old browsers, fallbacks and polyfills. In part three, they talk specifically about transpiling and polyfilling.

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Show Notes

2:20 - Polyfills and Transpile

5:18 - Back in the day

  • Border-radius htc hack
  • PNG fix for transparent PNGs
  • Flash for custom fonts
  • Cufon and SIFR

10:48 - JavaScript Polyfills

13:47 - JavaScript Transpile

  • Syntax is transpiled
  • babel-preset-env
  • Babel has plugins and presets
  • Meteor bundle to different browsers on demand
    • There are polyfills for most things, but performance can be an issue
  • Resize observer
  • Intersection Observer
    • Some things canโ€™t be done with either
  • New browser APIs
  • Service workers, device access, inline video on old iOS, etc.

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