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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IgorMinar

/**
 * ==================  angular-ios9-uiwebview.patch.js v1.1.1 ==================
 *
 * This patch works around iOS9 UIWebView regression that causes infinite digest
 * errors in Angular.
 *
 * The patch can be applied to Angular 1.2.0 – 1.4.5. Newer versions of Angular
 * have the workaround baked in.
 *
 * To apply this patch load/bundle this file with your application and add a

Avaq

const I  = x => x
const K  = x => y => x
const A  = f => x => f (x)
const T  = x => f => f (x)
const W  = f => x => f (x) (x)
const C  = f => y => x => f (x) (y)
const B  = f => g => x => f (g (x))
const S  = f => g => x => f (x) (g (x))
const S_ = f => g => x => f (g (x)) (x)
const S2 = f => g => h => x => f (g (x)) (h (x))

robwormald

If you're using SystemJS in the browser, you'll want to update your System config to point at the bundles, if you're not already.

System.config({
  //use typescript for simple compilation (no typechecking)
  //transpiler: 'typescript',
  //typescript compiler options
  //typescriptOptions: {
    //emitDecoratorMetadata: true
  //},

getify

// is Just(..) a monad? Well, it's a monad constructor.
// Its instances are certainly monads.
function Just(v) {
  return { map, chain, ap };
  function map(fn) {
    return Just(fn(v));
  }
  function chain(fn) {
    return fn(v);
  }

YBogomolov

export type Either<E, A> = [E, null] | [null, A];

type Fn<A, B> = (a: A) => B;

export const left = <E, A>(e: E): Either<E, A> => [e, null];
export const right = <E, A>(a: A): Either<E, A> => [null, a];

export const isLeft = <E, A>(e: Either<E, A>): e is [E, null] => e[1] === null;
export const isRight = <E, A>(e: Either<E, A>): e is [null, A] => e[0] === null;