mertguldur

Keybase proof

I hereby claim:

• I am mertguldur on github.
• I am mguldur (https://keybase.io/mguldur) on keybase.
• I have a public key ASBsh2JJjsKAD-JfPI292QIe8ySgesMI9LPmztj_cldbUwo

To claim this, I am signing this object:

mertguldur

module Interactors
  class Base
    MEMOIZATION_CACHE = {}

    def self.memoize
      method_name = :call
      method = instance_method(method_name)
      class_name = method.owner.name

      define_method(method_name) do |*args|

mertguldur

def flatten(array)
  result = []
  array.each do |element|
    if element.is_a?(Array)
      result += flatten(element)
    else
      result << element
    end
  end
  result

mertguldur

Command line

pwd

Look up the current directory.

ls

mertguldur

Address book

This will be a command line program for managing and searching contacts in an address book.

How to run Ruby code

1. Write Ruby code in a file <filename>.rb

2. On command line, run

mertguldur

class ProductsController < ApplicationController

  def show
    product = Product.find(params[:id]) 
    respond_to do |format|
      format.html { render locals: { product: product } } 
      format.json { render json: product }
      format.xml { render locals: { product: product } }
    end 
  end 

mertguldur

### sort vs sort! - what's the difference between these, and what are their return values?

# sort returns a new structure but doesn't modify the given one 
# where as sort! modifies the given structure and returns it

### splat - give an example of using splat to eat function args, another to call a function and provide the args with splat

def foo1(arg1, *args)
  args
end