puneet24 / ruby_answers

1. Ruby Method for finding factorial def factorial(no) f = 1; for i in 1..no; f *= i; end; f end

2. SublimeText

3. Ruby method to check that 1 string contains another or not. def exists(str1, str2) str1,include? Str2 end

class Admin # Declaring class admin cattr_accessor :tabs # getter and setter methods for class instance variable named tabs class << self # This is the advanced way to do this, is to define a method inside the Class instance itself. This is referred to as the eigenclass or the singleton class and it uses the self keyword to open a new context where the Class instance is held in self def add_tab(tab) # Definition of class instance method named add_tab @@tabs = @@tabs | [tab] # setting union of (@@tabs, and tab) array and taking unique values out of that end def tabs # Definition of class instance method named tabs @@tabs.sort # returning sorted tabs in ascending order end end end

In ruby last line is by default returning in any method.