A Pen by Daisy Magnus-Aryitey on CodePen.
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10:53 | |
comments in JS start with // | |
define a variable with keyword var | |
there is no do and end in JS, we use open anc close brackets instead | |
parentheses around parameters | |
while(counter < array.legnth) is while(parameter) | |
implicit return in ruby, but not in JS. if you want a return, you have to write "return x" | |
how to puts: alert or console.log |
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CSS box model: content is on the inside. you can give it a witdth and height. | |
outside of content is padding. | |
outside of padding is border. | |
outside of border is margin. | |
right click "Inspect Element" to see and adjust border/padding/margins etc. | |
div id="verses" CSS #verses div { } | |
CSS #verses > div { } direct children, not just any ancestor | |
#verses > div:first-letter (pseudo selector. selecting the first letter only) | |
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What is HTTP? Hypertext Transfer Protocol. Https is secure, but HTTP is not. | |
What is an IP address? an IP address is a signature on every computer that it allows it to communicate to other computers within the web. IP addresses are unique within the network that goes out to the world. But, within the network, IP addresses may be different. | |
What are all of the HTTP Verbs? get, put, post, patch, delete | |
Which HTML Verbs imply that their actions are idempotent? put, post, get |
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HTML and CSS | |
We are building webapps | |
one purpose webapps are fun | |
in html, white spaces are ignored (well, they are condensed down to one space). | |
html tags need to be opened and closed. <tag></tag>. when nesting, ident two spaces. | |
codepen to write and see hteml/css | |
<title><title> what shows up in search tab | |
header tags, 1 - 6 | |
html = hypertext markup language |
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An array and a hash are both collections of data. While an array is written with brackets [], a ahsh is written with curly braces {}. In an array, each piece of data is in a particular place, or index, withn the array. The indexes begin at 0. To get an particualr item from an array, one calls the name of the array and the index on the item like this: array[index_number]. Hashes are often referred to as dictionaries because each spot in a has contains two things, one (the key) refers to the other (the value). To get a particular item from a hash, one calls the name of the hash and uses the key to retrieve the item. There are also different methods available to arrays and hashes. Array methods incluede .each, .map, .select., .join, etc. | |
A string can be an type of text that is encolsed within quotes. A symbol is the key element in a hash. A symbol is a more powerful tool because it can be used as an attr_accessor within a program, or as a parameter in an initiliazed method. Thus is can be passed ar |
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require 'minitest/autorun' | |
require 'minitest/pride' | |
require './may1.rb' | |
module Intelligent | |
NUMBER_OF_LEGS = 2 | |
NUMBER_OF_BRAINS = 1 | |
class Human | |
def say_name | |
puts "My name is #{@name}." |
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require 'minitest/autorun' | |
require 'minitest/pride' | |
require './may26.rb' | |
class Array | |
def initialize | |
end | |
def has_even?(array) | |
num.map{|n| n % 2 == 0} |
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require 'minitest/autorun' | |
require 'minitest/pride' | |
require './array.rb' | |
class OddArray | |
def initialize(array) | |
@array = array | |
end | |
def to_a |
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require 'minitest/autorun' | |
require 'minitest/pride' | |
require './may.rb' | |
# Write two classes which inherit from the Vehicle class below. You will also | |
# need to add a method to the Vehicle class during this challenge. | |
class Vehicle | |
def initialize(make, model) | |
@make = make | |
@model = model |