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Jxck/eventtarget.d.ts

Created October 3, 2019 12:03
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eventtarget.d.ts
declare global {
// EventTarget に on を生やすと addEventListener を on と書ける
// e.g. ws.on('message', ()=>{})
interface EventTarget {
on: typeof EventTarget.prototype.addEventListener;
}
}
WebSocket.prototype.on = WebSocket.prototype.addEventListener
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