jaboulos

import { ReactNode } from 'react';

export interface HeadingProps {
  title: string;
  name?: string;
}

export const Heading = ({ title }: HeadingProps) => {
  return <h3>{title}</h3>;
};

jaboulos

// Takes 2 arguments (numbers), add them together and return the result
const add = (a: number, b: number): number => {
  return;
};

// Named function example
function divide(a: number, b: number): number {
  return a / b;
}

jaboulos

PSQL

Magic words:

psql -U postgres

Some interesting flags (to see all, use -h or --help depending on your psql version):

• -E: will describe the underlaying queries of the \ commands (cool for learning!)
• -l: psql will list all databases and then exit (useful if the user you connect with doesn't has a default database, like at AWS RDS)

jaboulos

Docker Commands, Help & Tips

Show commands & management commands

$ docker

Docker version info

jaboulos

MySQL Cheat Sheet

Help with SQL commands to interact with a MySQL database

MySQL Locations

• Mac /usr/local/mysql/bin
• Windows /Program Files/MySQL/MySQL version/bin
• Xampp /xampp/mysql/bin

Add mysql to your PATH

jaboulos

import { createStore, applyMiddleware, compose } from 'redux';
import thunk from 'redux-thunk';
import rootReducer from './reducers'

const initialState = {};

const middleware = [thunk]

const store = createStore(rootReducer, initialState, compose(
  applyMiddleware(...middleware),

jaboulos

Studying for a Tech Interview Sucks, so Here's a Cheat Sheet to Help

This list is meant to be a both a quick guide and reference for further research into these topics. It's basically a summary of that comp sci course you never took or forgot about, so there's no way it can cover everything in depth. It also will be available as a gist on Github for everyone to edit and add to.

Data Structure Basics

###Array ####Definition:

• Stores data elements based on an sequential, most commonly 0 based, index.
• Based on tuples from set theory.

jaboulos

//config file
config:
  target: 'http://localhost:3001'
  phases:
    - duration: 60
      arrivalRate: 100
scenarios:
  - flow:
    - get:
        url: "/menu-users"

jaboulos

// integerPairs
// Design an algorithm to find all pairs of integers within an array which sum to a specified value.
// Input: array
// Output: array of pairs
// Time complexity: O(n)
// Space complexity: no constraints
// Example:
// Input: [3, 2, 8, 9, -1, 4, 5, 12, 1], 7
// Output: [ [ 3, 4 ], [ 2, 5 ], [ 8, -1 ] ] (order of pairs does not matter)

jaboulos

AWS Linux: Installing Git from Source

Method

Method:

2. sudo yum update
3. sudo yum install curl-devel expat-devel gettext-devel openssl-devel perl-devel zlib-devel
4. sudo yum install asciidoc xmlto docbook2X
5. sudo yum install gcc autoconf
6. sudo ln -s /usr/bin/db2x_docbook2texi /usr/bin/docbook2x-texi
7. wget https://github.com/git/git/archive/v2.8.4.zip