BLOC Ruby Syntax

Ruby Syntax

#CP1

"hello world"
p "hello world"
p 4

#CP2 Booleans, Symbols, Variables
p true
p false
my_string_variable = "hello world"
p my_string_variable
my_boolean = true
p my_boolean

#CP3 Math Operations
p 1 + 2
p 5 - 1
p 6 / 2
p 4 * 3
p 2 ** 3
x = 10
p x
x = x + 5
p x
x += 5
p x
p 4 > 5
p 3 < 6
p 5 > 5
p 4 == 5
p 3 == 3
p (3 + 4) * 7
p 3 + 4 * 7
sum = 3 + 4
p sum * 7
wins = 11
losses = 5
p wins > losses
p wins == losses
hello = "hello"
p hello * 3
p hello + "world"
p "hello #{3}"
num = 5
p "hello #{num}"
p "3 + 4 = #{3 + 4}"
num1 = 3
num2 = 4
p "3 + 4 = #{num1 + num2}"

num1 = 3
num2 = 4
p "#{num1} + #{num2} = #{num1 + num2}"


p = 10_000
r = 0.05
t = 5
n = 12
a = p * (1 + r/n) ** (n*t)
p "After #{t} years I'll have #{a} dollars!"

#CP4 Nil
p "Bloc"[7]
p "Bloc"[2]

Returns nil or "o"

#CP5 Methods

def hello
  "hello world"
end
p hello

def hello2
  a = 1
  b = 2
  a + b
end

p hello2

def add(a,b)
  a + b
end

p add(1,2)
p add(4,5)
p add(7,7)

def compound_interest(name, p, r, t, n)
  a = p * (1 + r/n) ** (n*t)
  "After #{n} years #{name} will have #{a} dollars!"
end

p compound_interest("Bob", 100, 0.05, 40, 12)
p compound_interest("Joe", 250, 0.06, 50, 12)


# Practice
def link(address,text)
   "<a href='#{address}'>#{text}</a>" 
end

p link("http://www.google.com", "Google")