FaisalAl-Tameemi

0x69b8Fb504E2eb0B2A8B6e5C1caF4ce6070c76BDB

FaisalAl-Tameemi

JS Foundations

Topics:

• Scopes in JS
• Context (aka this) in JS
• Callbacks Review
• NodeJS Modules
• NodeJS Automated Testing w. Mocha - time permits

FaisalAl-Tameemi

/**********************************************************************
Example 1: we can store a function like we store any other value.

In the example below, the function we are storing in `sumArray` is actually unnamed
which is to say it's an "annonymous" function.
**********************************************************************/

var sumArray = function(arr){
  return arr.reduce(function(sum, elm){
    return sum += elm;

FaisalAl-Tameemi

CSS Box Model

Quick Review - CSS Syntax

Let's quickly review some of the basic syntax and anatomy of CSS code.

If we wanted to style all the divs on a given page with a height and width of 400px as well as a blue background, then our CSS code could be as follows:

FaisalAl-Tameemi

# Working with multiple stocks

"""
SPY is used for reference - it's the market
Normalize by the first day's price to plot on "equal footing"
"""

import os
import pandas as pd
import matplotlib.pyplot as plt

FaisalAl-Tameemi

Introduction to HTTP

Starting from the top...

FaisalAl-Tameemi

require './bartender.rb'
require './restaurant.rb'
require './review.rb'

describe Bartender do
  before :each do
    @bartender = Bartender.new('John', 6)
  end

  describe '.new' do

FaisalAl-Tameemi

class Employee < ActiveRecord::Base
  BILLABLE_HOURS = 1950

  belongs_to :store

  validates :first_name, :last_name,
    presence: true

  after_create :increment_employees_count
  after_destroy :decrement_employees_count

FaisalAl-Tameemi

In the code below, is person is an Object or Class or Constructor? What's the difference ?

function Person(name,age) {
  this.name = name;
  this.age = age;
}

// a function that prints the name of any given person
var printPersonName = function (p) {

FaisalAl-Tameemi

class Cellphone < Product

  def initialize(name, price, brand)
    super
  end

end