rpggio

/**
 * If argument is a string, try to parse as JSON.
 * Otherwise return null.
 */
export function parseOrNull(raw: unknown) {
  if (!raw) return null

  if (typeof raw === 'string') {
    try {
      return JSON.parse(raw)

JamieMason

Group Array of JavaScript Objects by Key or Property Value

Implementation

const groupBy = key => array =>
  array.reduce((objectsByKeyValue, obj) => {
    const value = obj[key];
    objectsByKeyValue[value] = (objectsByKeyValue[value] || []).concat(obj);
    return objectsByKeyValue;

JoaquimLey

Generating a new ssh-key

Open Terminal. Paste the text below, substituting in your GitHub email address.

ssh-keygen -t rsa -b 4096 -C "your_email@example.com"

This creates a new ssh key, using the provided email as a label

Generating public/private rsa key pair.

namyarxam

Summary

On the most basic level, the way we learned to query through a table in one of our databases is pretty simple.

The SQL SELECT statement allows us to search through a table and return a custom results table with whatever columns/groupings/operations we specified in our query.

SELECT * FROM movies WHERE rottentomatoes > 85 AND lead_actor like 'Kevin Spacey';

Unfortunately, sometimes the queries need an added level of complexity and a simple statement like the one above wont do the trick. Here are two scenarios where we need to add some intricacy to our SQL statement in order to perform a sufficient query:

1. We want to query for consistencies between two separate tables that are connected through a reference key.

PurpleBooth

Project Title

One Paragraph of project description goes here

Getting Started

These instructions will get you a copy of the project up and running on your local machine for development and testing purposes. See deployment for notes on how to deploy the project on a live system.

Prerequisites