mindaslab

array = [<<TEXT]
 #  ##   ## ##  ### ###  ## # # ###  ## # # #   # # ###  #  ##   #  ##
  ## ### # # # # # # # # # # ### ###
# # # # #   # # #   #   #   # #  #    # # # #   ### # # # # # # # # #
# #    #  # # # # # # # # # #   #   #
### ##  #   # # ##  ##  # # ###  #    # ##  #   ### # # # # ##  # # ##
  #   #  # # # # ###  #   #   #   ##
# # # # #   # # #   #   # # # #  #  # # # # #   # # # # # # #    ## #
#   #  #  # # # # ### # #  #  #
# # ##   ## ##  ### #    ## # # ###  #  # # ### # # # #  #  #     # #

mindaslab

def closest_to_zero(numbers)
 numbers = numbers.split.map(&:to_i) if numbers.is_a? String

 numbers.min_by {|t| [t.abs,-t]}
end

mindaslab

# lib/tasks/custom_seed.rake
namespace :db do
  namespace :seed do
    Dir[File.join(Rails.root, 'db', 'seeds', '*.rb')].each do |filename|
      task_name = File.basename(filename, '.rb').intern
      task task_name => :environment do
        load(filename) if File.exist?(filename)
      end
    end
  end

mindaslab

class AuthController < ApplicationController
  def auth
    user = User.find_by(email: params[:email])
    if user.valid_password? params[:password]
      # user login is right
    else
      # user login is wrong
    end
  end
end

mindaslab

# count.rb
# A kinda array to hoistogram application

string = """
VEGETABLE BRIYANI, VEGETABLE FRIED RICE
COCONUT RICE
KASHMIRI PULAO, JEERA PULAO
KASHMIRI PULAO
VEGETABLE BRIYANI
KASHMIRI PULAO

mindaslab

Create a file called your_name_zanec_math.rb

When I require it in code, following things must happen

1.prime? #=> true
7.prime? #=> true
27.prime? #=> false
13.fibo? #=> true
16.fibo? #=> false

mindaslab

memo = []
 
(0..n).each do |i|
  memo[i] = i < 2 ? i : memo[i-1] + memo[i-2]
end

mindaslab

@cache = [0,1]
 
def fib(n)
  return @cache[n] if @cache[n]
 
  @cache[n] = fib(n-1) + fib(n-2)
end

mindaslab

(1..20).each { |n| puts fib(n) }

mindaslab

def fib(n)
  return n if n < 2
 
  fib(n-1) + fib(n-2)
end