CustomEvent is missing for the list of specialized signatures on document.createEvent

[mhegazy]

Coppied from @NekR coment in: #2029 (comment)

This:

var event = document.createEvent('CustomEvent');
event.initCustomEvent('test', true, true, void 0);
this.node.dispatchEvent(event);

produces this error:
error TS2339: Property 'initCustomEvent' does not exist on type 'Event'.

This:

var event:CustomEvent = document.createEvent('CustomEvent');
event.initCustomEvent('test', true, true, void 0);
this.node.dispatchEvent(event);

produces this error:
error TS2322: Type 'Event' is not assignable to type 'CustomEvent'. Property 'detail' is missing in type 'Event'.

And only casting works:

var event = <CustomEvent>document.createEvent('CustomEvent');
event.initCustomEvent('test', true, true, void 0);
this.node.dispatchEvent(event);

First case worked just fine 30 mins2 hours ago when I was on TS1.5-Alpha.

[mhegazy]

@NekR can you give this file a try: https://github.com/Microsoft/TypeScript/blob/a46a6106a8f01131ef208fa51fe69b3d06574507/bin/lib.d.ts

sorry for the hassle.

[NekR]

@mhegazy Yep, it works for me know, thank you!

[mhegazy]

Thanks.

[QuinntyneBrown]

@mhegazy "composed" is missing from the CustomEvent definition.

[mhegazy]

please file a new issue for this.