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# Type this into your terminal. You will notice that we are actually using Ruby to install Homebrew.
ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

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Welcome Intro to Ruby on Rails!

---

Hi! I'm...

• Sung Kim
• I'm a software engineer & data scientist at Booz Allen Hamilton.

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## First Hello world

puts "what is your name??"
name = gets.chomp
puts "Hi #{name}, how are you??"

#############
# Variables #
#############

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////////////////////
//JavaScript Logic//
////////////////////
$('.project_btn').each(function(index) {
  $(this).on('click', function(){
    $(this).addClass('selected')
    $('.project_btn').not(this).removeClass('selected')
    var tab = ($('.project.info').eq(index))
    var otherTabs = ($('.project.info').not(tab))
    console.log(index)

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# Python like Javascript is a functional langauge. It allows you to pass methods.
# To filter my_list for even numbers you can:

my_list = range(1,11) # Creates a list with the number 1 - 10

# Filter Syntax is filter(params to filter by, list to filter)
print filter( lambda x: x%2==0, my_list)
# Returns
[2, 4, 6, 8, 10]

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# Iterating over Dictionaries in Pythin is really straight forward

dictionary = {
  "a" : "A",
  "b" : "B",
  "c" : "C",
  "d" : "D"
  }
  
# Get all items in the Dictionary 

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# Python list can be manipulated as follows:
my_list = [1,2,3,4,5,6,7,8,9,10]

# my_list[start_index : end_index : stride]
# Default for start index is 0
# Default for end index is the end of the list

even_num_list = my_list[1::2]
# Returns
[2, 4, 6, 8, 10]

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# Creating a List of numbers from 1 to 10 can be done with:
list_1_to_10 = range(1,11)

# Returns
[1, 2, 3, 4, 5, 6, 7, 8, 9, 10]

# But what if you wanted only the even numbers? Use the List comprehension syntax! 
even_num_list = [x for x in range(1,11) if x % 2 == 0]

# Returns 

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'''
Recursion can be difficult for beginners. It still is difficult for me.
The best way to improve is to try "easy" recursion problems such as 
factorials in this case. 

Instructions: 
Create a function that takes an positive interger and returns the factorial of it
Example factorial(3) should return 3*2*1 or 6 
Factorial(1) should return 1
Factorial(0) should return 1

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# This guide is for people who have install Sublime REPL and linked their system Python to it.   
# If you haven't but want to, refer to my previous post where I show you how.

# If you are using Python 3 and still have Python 2 installed on your system as default 

# For NLTK
python3 -m pip install -U nltk

# For LDA
python3 -m pip install lda