Benny Neugebauer bennycode

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Working from home

I am a professional programmer who likes to collaborate with passionate & friendly people. 💻💫

bennycode / executeAllPromises

Created January 6, 2017 14:30

	function executeAllPromises(promises) {
	// Wrap all Promises in a Promise that will always "resolve"
	var resolvingPromises = promises.map(function(promise) {
	return new Promise(function(resolve, reject) {
	var payload = new Array(2);
	promise.then(function(result) {
	payload[0] = result;
	})
	.catch(function(error) {
	payload[1] = error;

bennycode / dexie-auto-increment.html

Last active May 25, 2020 20:41

Auto incremental primary keys with Dexie

	<!DOCTYPE html>
	<html>
	<head>
	<title>Title</title>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<script src="bower_components/dexie/dist/dexie.js"></script>
	</head>
	<body>
	<script>

bennycode / fibonacci.js

Last active March 19, 2017 13:46

Fibonacci numbers

bennycode / permutation.js

Created March 20, 2017 10:17

Permutation in JavaScript

	const Combinatorics = require('js-combinatorics');

	const n = ['A', 'B', 'C', 'D'];
	const k = 2;

	const generator = Combinatorics.bigCombination(n, k);
	const combinations = generator.toArray().length;

	console.log(`Possible combinations: ${combinations}`); // "Possible combinations: 6"

bennycode / allPossibleCombinations.js

Created March 20, 2017 13:15

Generate all possible words with a given set of characters

	function allPossibleCombinations(input, fixedLength, currentCombination) {
	if (currentCombination.length == fixedLength) {
	return [currentCombination];
	}

	const combinations = [];

	for (let i = 0; i < input.length; i++) {
	combinations.push(...allPossibleCombinations(input, fixedLength, currentCombination + input[i]));
	}

bennycode / winston.js

Created March 20, 2017 14:06

Using "winston"

	const winston = require('winston'); // v2.3.1

	winston.configure({
	transports: [
	new (winston.transports.File)({
	filename: './data/test.txt',
	handleExceptions: true,
	json: false,
	level: 'silly',
	maxFiles: 5,

bennycode / getPageContent.js

Created March 26, 2017 21:07

Get dynamic page content with PhantomJS

	const phantom = require('phantom');

	/**
	* Acts like a web browser and gets page content (also from dynamic HTML pages).
	* @param {string} url - Page URL
	* @returns {Promise.<string, Error>} Resolves with the page content.
	*/
	module.exports = async function(url) {
	const instance = await phantom.create();
	const page = await instance.createPage();

bennycode / bonescript-blinking-leds.js

Created October 1, 2017 18:20

Blinking LEDs example (BeagleBone Black Wireless)

	#!/usr/bin/env node
	'use strict';

	const b = require('bonescript');

	console.log('VERSION', 2);
	console.log(`Working directory of the Node.js process: ${process.cwd()}`);

	const leds = ['USR0', 'USR1', 'USR2', 'USR3', 'P9_14'];

bennycode / gist:71c4b859c5b277d4660ddc5265a589a1

Created December 2, 2017 15:17

Delayed Promise

	const reruns = 10;

	const delayedPromise = (iterations) => {
	return new Promise((resolve) => {
	const delay = 1000;
	setTimeout(() => {
	if (iterations > 0) {
	iterations -= 1;
	console.log('Iteration', iterations);
	delayedPromise(iterations).then(resolve);

bennycode / node-prompt.js

Created December 9, 2017 21:05

Node.js Prompt

	const inquirer = require('inquirer');

	const questions = [{
	default: false,
	message: 'Is this correct?',
	name: 'isCorrect',
	type: 'confirm',
	}];

	inquirer.prompt(questions)