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Notes on Use of Multiple ARIA Role Attribute Values

Did you know the ARIA role attribute allows for multiple values? It’s how role supports fault tolerance: the first value (of the space separated list) is applied, but if the assistive technology in use doesn’t understand it, the second value will be tried, etc. until a usable alternative is found. It works a lot like font stacks.



ES6 in WebKit (October 2015)

This is an update on where things stand with the ECMAScript 6/2015 spec in WebKit. Currently in Safari for El Capitan & iOS9:

  • Classes
  • Promises
  • Map, Set, WeakMap, WeakSet, for…of loops, and
  • Symbols

Coming soon:

  • let, const, and class block scoping
  • a portion of the Reflect API
  • some of the current module specification
  • Tail calls
  • Default parameter values
  • Default destructuring values
  • Arrow functions, and
  • a portion of the internationalization API

For an excellent overview of ES6 support, consult this handy chart.