sibelius

const defaultGroupKey = (item) => item.id;

const groupBy = <T extends any)(arr: Array<T>, groupKeyFn = defaultGroupKey) => {
  return arr.reduce((acc, item) => {
     const key = groupKeyFn(item);
     
     if (key in acc) {
        return {
           ...acc,
           [key]: [...acc[key], item],

tomhicks

/*
Copy this into the console of any web page that is interactive and doesn't
do hard reloads. You will hear your DOM changes as different pitches of
audio.

I have found this interesting for debugging, but also fun to hear web pages
render like UIs do in movies.
*/

const audioCtx = new (window.AudioContext || window.webkitAudioContext)()

NigelEarle

Knex Setup Guide

Create your project directory

Create and initialize your a directory for your Express application.

$ mkdir node-knex-demo
$ cd node-knex-demo
$ npm init

SanderTheDragon

#!/bin/sh

# SPDX-FileCopyrightText: 2017-2022 SanderTheDragon <sanderthedragon@zoho.com>
#
# SPDX-License-Identifier: MIT

curlExists=$(command -v curl)

echo "Testing Postman version"

joshbuchea

Semantic Commit Messages

See how a minor change to your commit message style can make you a better programmer.

Format: <type>(<scope>): <subject>

<scope> is optional

Example

Woodsphreaker

Ordernar um objeto com vários itens por determinados campos

Ordena dados por campos.

Casos de uso

sorting(names, ['name', 'age'], ASC)

Ordena o objeto names pelos campos name e age por direção Ascendente

mxstbr

Enable tab completion for JSX with Emmet in Atom

This guide assumes you have the emmet and language-babel packages already installed in Atom

1. Open the keymap.cson file by clicking on Atom -> Keymap… in the menu bar
2. Add these lines of code to your keymap:

'atom-text-editor[data-grammar~="jsx"]:not([mini])':

hertz1

/**
 * Remove acentos de strings
 * @param  {String} string acentuada
 * @return {String} string sem acento
 */

var map={"â":"a","Â":"A","à":"a","À":"A","á":"a","Á":"A","ã":"a","Ã":"A","ê":"e","Ê":"E","è":"e","È":"E","é":"e","É":"E","î":"i","Î":"I","ì":"i","Ì":"I","í":"i","Í":"I","õ":"o","Õ":"O","ô":"o","Ô":"O","ò":"o","Ò":"O","ó":"o","Ó":"O","ü":"u","Ü":"U","û":"u","Û":"U","ú":"u","Ú":"U","ù":"u","Ù":"U","ç":"c","Ç":"C"};

function removerAcentos(s){ return s.replace(/[\W\[\] ]/g,function(a){return map[a]||a}) };

soheilhy

Virtual Hosts on nginx (CSC309)

When hosting our web applications, we often have one public IP address (i.e., an IP address visible to the outside world) using which we want to host multiple web apps. For example, one may wants to host three different web apps respectively for example1.com, example2.com, and example1.com/images on the same machine using a single IP address.

How can we do that? Well, the good news is Internet browsers

cirocosta

Manuseando arquivos com compabilidade entre SOs

Criar Pastas

Para criação de pastas o mais conveniente (unix) é utilizar mkdir -p, o qual:

-p, --parents no error if existing, make parent directories as needed

tem-se então o semelhante como módulo de node, o mkdirp.