vjau

type _Intersect = {a?:number} & {a:number|undefined};

//state of exactOptionalPropertyTypes
type IsExactOptional = _Intersect["a"] extends Exclude<_Intersect["a"], undefined> ? true : false;

ammuench

FROM https://www.reddit.com/r/Fedora/comments/zmvkdj/8bitdo_ultimate_bluetooth_controller_working_in/

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I've bought this new controller from 8BitDo and wished to use on linux, to my sadness the controller didn't work out of the box, neither by cable, the 2.4G dongle or bluetooth.

So I've tried a number of solutions and this one from u/GodOfEmus over in the 8bitdo community was the one to work for me:

milankorsos

import {Action, ActionCreator, Dispatch} from 'redux';
import {ThunkAction} from 'redux-thunk';

// Redux action
const reduxAction: ActionCreator<Action> = (text: string) => {
  return {
    type: SET_TEXT,
    text
  };
};

ericelliott

Essential JavaScript Links

I no longer mantain this list. There are lots of other very comprehensive JavaScript link lists out there. Please see those, instead (Google "awesome JavaScript" for a start).

staltz

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

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This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

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stbaer

test.isFalse(v, msg)
test.isTrue(v, msg)
test.equal(actual, expected, message, not)
test.length(obj, len)
test.include(s, v)
test.isNaN(v, msg)
test.isUndefined(v, msg)
test.isNotNull
test.isNull
test.throws(func)