IRB History (Day 2)

Joshua-Strubs-MacBook-Pro:~ joshuastrub$ cd lighthouse
Joshua-Strubs-MacBook-Pro:lighthouse joshuastrub$ irb
irb(main):001:0> def say_hi(name) 
irb(main):002:1> "Hi, #{name}" 
irb(main):003:1> end 
=> nil
irb(main):004:0> say_hi("Josh") 
=> "Hi, Josh"
irb(main):005:0> my_array = [5, 3, 5] 
=> [5, 3, 5]
irb(main):006:0> my_array.sort 
=> [3, 5, 5]
irb(main):007:0> my_array.sort!
=> [3, 5, 5]
irb(main):008:0> my_array.sort
=> [3, 5, 5]
irb(main):009:0> clear
NameError: undefined local variable or method `clear' for main:Object
	from (irb):9
	from /usr/bin/irb:12:in `<main>'
irb(main):010:0> 



irb(main):010:0> an_array = [1,2,3,4,5] 
=> [1, 2, 3, 4, 5]
irb(main):011:0> an_array.each {|i| puts i}
1
2
3
4
5
=> [1, 2, 3, 4, 5]
irb(main):012:0> 














irb(main):012:0> Math.sqrt(1282) 
=> 35.805027579936315
irb(main):013:0> include Math 
=> Object
irb(main):014:0> Time.now
=> 2016-04-26 12:22:26 -0400
irb(main):015:0> sqrt 64
=> 8.0
irb(main):016:0>