solenoid

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();
};

stevenyap

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"

vasanthk

System Design Cheatsheet

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

Basic Steps

1. 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?

tomysmile

type below:

brew update
brew install redis

To have launchd start redis now and restart at login:

brew services start redis

adamjarling

// 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,

ahmadarif

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

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