gregberns

var token = Number(new Date());
window["optimizely"] = window["optimizely"] || [];
window["optimizely"].push({
  type: "addListener",
  filter: {
    type: "lifecycle",
    name: "pageDeactivated"
  },
  token: token,
  // Add the pageActivated function as a handler.

gregberns

//# Introduction
//The following is a generalized architecture based on the Elm architecture
// and the many subsequent derivations of it.
//The essential idea of the Elm architecture is that a User Interface has a
//  'uni-directional' data flow, which means data flows in a single directions.
//Here's a simple example:
// Button Click Event -> Handle Event -> Make Http Call -> Update State -> Update View

//Events occur which causes the system('services') to react to them. The system
// then sends commands to the state of the system to transition from 'State A' to 'State B'.

gregberns

//# Introduction
//The following is a generalized architecture based on the Elm architecture
// and the many subsequent derivations of it.
//The essential idea of the Elm architecture is that a User Interface has a
//  'uni-directional' data flow, which means data flows in a single directions.
//Here's a simple example:
// Button Click Event -> Handle Event -> Make Http Call -> Update State -> Update View

//Events occur which causes the system('services') to react to them. The system
// then sends commands to the state of the system to transition from 'State A' to 'State B'.

gregberns

VSCode

Linting TS Files

Install 'TSLint' plugin

Run this command:

npm install -g tslint typescript

gregberns

buildFeaturePreview(vehicle: IVehicle): string {
  let mpg = this.shouldShowMpg(vehicle) ? `${vehicle.MPGCity} / ${vehicle.MPGHighway} MPG` : null;
  let features = vehicle.HighlightedFeatures.map(feature => feature.description);
  
  return [mpg, 
          ...features]
          .filter(isDefinedAndNotNull)
          .join(', ')
          '...';
}

gregberns

import Data.Traversable

main =
  traverse print (genAll 'J')

-- [_,_,A,_,_]
-- [_,B,_,B,_]
-- [C,_,_,_,C]
-- [_,B,_,B,_]
-- [_,_,A,_,_]

gregberns

let map = (f, o) => {
  //o must be an object
  let keys = Object.keys(o);
  let ret = {};
  for (let i = 0; i <= keys.length - 1; i++) {
   let key = keys[i];
   let val = o[key];
   ret[key] = f(val, key);
  }
  return ret;

gregberns

Download `cabal-install-2.2.0.0-x86_64-apple-darwin-sierra.tar.gz`
Extract
Run:

Gregs-MacBook-Pro:downloads huck$ ./cabal --version
cabal-install version 2.2.0.0
compiled using version 2.2.0.1 of the Cabal library 
Gregs-MacBook-Pro:downloads huck$ ./cabal install Cabal cabal-install 
Warning: Parsing the index cache failed (Unknown encoding for constructor).
Trying to regenerate the index cache...

gregberns

//Local Declaration

Func<string> returnsString = () => "";
Func<int, int> takesIntReturnsInt = i => i * 2;


//Class-Level Declaration

//Generic Params

gregberns

{-# OPTIONS_GHC -fwarn-incomplete-patterns -Werror #-}

-- Show 

-- p1 =
--   ...
--   method(f,f)
--   ...
-- p2 =
--   ...