brandonetter

Cheat Sheet

This cheatsheet is organized not by typescript concept- but by programming concept, making it easy to find what you need without knowing what it's called in Typescript. ie Sections are broken into "Objects","Arrays", and "Functions"

Extended examples are included- but often they are more explicit than needed. Your code will often be much more simple.

Objects

Arrays

Functions

React Event Handlers

API data modeling

Zod, Forms, Schemas

Obje

ingeniousgenius

JWT Auth + Refresh Tokens in Rails

This is just some code I recently used in my development application in order to add token-based authentication for my api-only rails app. The api-client was to be consumed by a mobile application, so I needed an authentication solution that would keep the user logged in indefinetly and the only way to do this was either using refresh tokens or sliding sessions.

I also needed a way to both blacklist and whitelist tokens based on a unique identifier (jti)

Before trying it out DIY, I considered using:

zeke

const cheerio = require('cheerio')
const html = `
<ul>
  <li>Hello A</li>
  <li>Hello B</li>
  <li>Hello C</li>
</ul>
`
const $ = cheerio.load(html)

ibraheem4

Installing Postgres via Brew

Pre-Reqs

Brew Package Manager

In your command-line run the following commands:

1. brew doctor
2. brew update

vlucas

import { createCipheriv, createDecipheriv, randomBytes } from "crypto";

const ENCRYPTION_KEY: string = process.env.ENCRYPTION_KEY || ""; // Must be 256 bits (32 characters)
const IV_LENGTH: number = 16; // For AES, this is always 16

/**
 * Will generate valid encryption keys for use
 * Not used in the code below, but generate one and store it in ENV for your own purposes
 */
export function keyGen() {

patpohler

Big List of Real Estate APIs

Listings / Property Data

####Rets Rabbit http://www.retsrabbit.com

Rets Rabbit removes the nightmare of importing thousands of real estate listings and photos from RETS or ListHub and gives you an easy to use import and Web API server so you can focus on building your listing search powered website or app.

davidfurlong

How to use Bookshelf with postgis and knex-postgis without the hassle

Using Bookshelf.js with postgis and knex-postgis is a huge pain in the ass.

TLDR - Override Bookshelf methods to parse postgis formats in JS, not in SQL to avoid having to do awkward Bookshelf modifications anywhere you make a bookshelf insert/update/delete on Geo data (middleware like approach)

class Event extends Bookshelf.Model {
  get tableName() { return 'event'; }

nrollr

Install MySQL on macOS Sierra

This procedure explains how to install MySQL using Homebrew on macOS Sierra 10.12

Install Homebrew

• Installing Homebrew is effortless, open Terminal and enter :
  $ /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
• Note: Homebrew will download and install Command Line Tools for Xcode 8.0 as part of the installation process.

Install MySQL

At this time of writing, Homebrew has MySQL version 5.7.15 as default formulae in its main repository :

kus

// Fix iOS Audio Context by Blake Kus https://gist.github.com/kus/3f01d60569eeadefe3a1
// MIT license
(function() {
	window.AudioContext = window.AudioContext || window.webkitAudioContext;
	if (window.AudioContext) {
		window.audioContext = new window.AudioContext();
	}
	var fixAudioContext = function (e) {
		if (window.audioContext) {
			// Create empty buffer