he/him 
Why is React's PropTypes naming inconsistent with JS? number, object, string, array — all good — but then "func" and "bool". Um...
@BlaineBublitz @kangax there are a lot of crappy parsers in use at FB (working on killing them in favour of Babel)
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@sebmck@BlaineBublitz@kangax FB stack had nothing to do with it. It was IE8 support and nobody used transpilers back then. Only polyfills. -
@sebmck@BlaineBublitz@kangax FB did even only conditionally transpile certain for a long time until it got faster. Even though we had it.
End of conversation
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