Kate katesroad

type below:

brew update
brew install redis

To have launchd start redis now and restart at login:

brew services start redis

System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

Basic Steps

Clarify and agree on the scope of the system

User cases (description of sequences of events that, taken together, lead to a system doing something useful)
- Who is going to use it?
- How are they going to use it?

Flash

# supports only notice and alert by default
# the rest has to go into flash hash
redirect_to :index, notice: "success"
redirect_to :new, notice: "errors"
redirect_to :new, flash: { success: "yeah" }
flash[:info] = "updated"

	import { Module } from '@nestjs/common';
	import { ConfigService } from './config.service';

	@Module({
	providers: [
	{
	provide: ConfigService,
	useValue: new ConfigService('.env'),
	},
	],

	// https://testing-library.com/docs/example-react-router

	import React from "react";
	import { Router } from "react-router-dom";
	import { render } from "@testing-library/react";
	import { createMemoryHistory } from "history";

	// test utils file
	function renderWithRouter(
	ui,

	var mongoObjectId = function () {
	var timestamp = (new Date().getTime() / 1000 \| 0).toString(16);
	return timestamp + 'xxxxxxxxxxxxxxxx'.replace(/[x]/g, function() {
	return (Math.random() * 16 \| 0).toString(16);
	}).toLowerCase();
	};