Building Polyfills: Web Platform APIs for the Present and by Brandon Satrom

By Brandon Satrom

Add customized beneficial properties to browsers outdated and new by way of writing polyfill libraries, JavaScript plugins that take browsers past their local functions. during this functional fieldbook, writer Brandon Satrom introduces ideas and directions for polyfill improvement, after which walks you thru the stairs for development a fancy, real-world HTML5 polyfill.

You’ll additionally discover the way forward for polyfilling—or prollyfilling—that will make it easier to try out and paintings with rising strategies, usually prior to browser owners. by the point you end this ebook, you’ll have the instruments and hands-on adventure you must construct trustworthy polyfills for today’s and tomorrow’s Web.

  • Learn the present kingdom of polyfills, together with shims, opt-ins, and drop-ins
  • Use rules and practices to construct dependable polyfills that profit the whole internet improvement community
  • Build out a number of gains for an HTML5 kinds polyfill library
  • Configure a construct atmosphere and run computerized cross-browser testing
  • Optimize functionality, deal with side situations, and fine-tune the rate of your polyfill
  • Get examples of prollyfilling libraries that push the limits of the Web
  • Write a pattern prollyfill and evaluate it to present polyfill builds

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