Maria Campbell interglobalmedia

This content moved here: https://exploringjs.com/impatient-js/ch_arrays.html#quickref-arrays

Resources for Web Developers and Designers

This is an incomplete list of resources including courses and individuals who publish content that has helped me grow as a web developer and designer. Many of these resources are WordPress-specific as that is my current area of specialization. This list will grow over time. If you've got something to add, send me a link @kevinwhoffman and I'll check it out!

Course Providers

Let's install PostgreSQL onto your operating system.

As an open source object-relational database management system, PostgreSQL available for MacOS, Linux, and Windows.

Goal for each Operating System

The goal will be to run the following command successfully from the command line (regardless of the OS):

psql -U postgres

This should open the psql interactive shell and print a prompt that looks like:

Authentication with an Express API and Postgres

Setting Up

Let's make sure our Express app has the required base modules:

# within root of API
npm install --save express pg knex bcrypt
npm install --save-dev nodemon

async/await is just the do-notation of the Promise monad

CertSimple just wrote a blog post arguing ES2017's async/await was the best thing to happen with JavaScript. I wholeheartedly agree.

In short, one of the (few?) good things about JavaScript used to be how well it handled asynchronous requests. This was mostly thanks to its Scheme-inherited implementation of functions and closures. That, though, was also one of its worst faults, because it led to the "callback hell", an seemingly unavoidable pattern that made highly asynchronous JS code almost unreadable. Many solutions attempted to solve that, but most failed. Promises almost did it, but failed too. Finally, async/await is here and, combined with Promises, it solves the problem for good. On this post, I'll explain why that is the case and trace a link between promises, async/await, the do-notation and monads.

First, let's illustrate the 3 styles by implementing

How to change your commit messages in Git?

At some point you’ll find yourself in a situation where you need edit a commit message. That commit might already be pushed or not, be the most recent or burried below 10 other commits, but fear not, git has your back 🙂.

Not pushed + most recent commit:

git commit --amend

This will open your $EDITOR and let you change the message. Continue with your usual git push origin master.

JavaScript Classes - ES5 vs ES6

An example that shows the difference between creating a JavaScript class and subclass in ES5 and ES6.

Reference

	After automatically updating Postgres to 10.0 via Homebrew, the pg_ctl start command didn't work.
	The error was "The data directory was initialized by PostgreSQL version 9.6, which is not compatible with this version 10.0."

	Database files have to be updated before starting the server, here are the steps that had to be followed:

	# need to have both 9.6.x and latest 10.0 installed, and keep 10.0 as default
	brew unlink postgresql
	brew install [email protected]
	brew unlink [email protected]
	brew link postgresql

	// check version
	node -v \|\| node --version

	// list locally installed versions of node
	nvm ls

	// list remove available versions of node
	nvm ls-remote

	// install specific version of node

	'use strict';
	// =======================================================================
	// Gulp Plugins
	// =======================================================================
	var gulp = require('gulp'),
	nunjucks = require('nunjucks'),
	markdown = require('nunjucks-markdown'),
	marked = require('marked'),
	rename = require('gulp-rename'),
	gulpnunjucks = require('gulp-nunjucks');