edwingustafson

/**
 *	Simple program to use -verbose:class
 */
public class Hello {
  public static void main(final String[] args) {
    System.out.println("Hello, world!");
  }
}

/*

edwingustafson

import java.util.*;

/**
 * Hello, world! program using Optional monad
 */
public class HelloWorld {
  public static void main(final String[] args) {
    Optional.of("Hello, world!").ifPresent(System.out::println);
  }
}

edwingustafson

//  This works but requires four lines of code
function wrong() {
  if (Math.random() > 0.5)
    return true
  else
    return false;
}

//  Same result in a single line of code
function right() {

edwingustafson

public List<String> imperative(List<String> terms) {
  List<String> result = new ArrayList<String>(terms.size());
  
  for(term : terms) {
    if(term.length > 3) {
      restult.add(term.toUpperCase());
    }
  }
  
  return result;

edwingustafson

import * as Immutable from 'immutable';

interface Place {
  country: string;
  stateOrProvince: string;
  city: string;
}

const list: Immutable.List<Place> = Immutable.List<Place>([
  {country: 'USA', stateOrProvince: 'Michigan', city: 'Petoskey'},

edwingustafson

const serviceUuid = 0xFFE0, characteristicUuid = 0xFFE1;

document.addEventListener('DOMContentLoaded', () => {
  document.getElementById('connect').addEventListener('click', (event) => {
    event.target.style.display = 'none';

    navigator.bluetooth.requestDevice({
      filters: [{name: 'HMSoft', services: [serviceUuid]}],
    }).then((device) => {
      document.getElementById('form').style.display = 'block';

edwingustafson

const luhn: (candidate: string) => boolean = (candidate: string) => 
  parseInt(candidate[candidate.length - 1]) === candidate.
    slice(0, candidate.length - 1).
    split('').
    map((c: string) => parseInt(c)).
    reverse().
    map((n: number, index: number) => index % 2 === 0 ? 2 * n : n).
    map((n: number) => n > 9 ? n - 9 : n).
    reduce((a: number, b: number) => a + b)
    * 9 % 10

edwingustafson

body {
    border-top: solid 10px;
    border-image: repeating-linear-gradient( -75deg, yellow, yellow 10px, black 10px, black 20px) 20;
}

edwingustafson

const path = require('path');

module.exports = function override(config, env) {
   config.plugins.find(plugin => plugin.constructor.name === 'ForkTsCheckerWebpackPlugin').memoryLimit = 4096;

   return config;
};

edwingustafson

#!/bin/bash

jshell -<<EOF
System.out.println("Hello, world!");
/exit
EOF