```ruby
# Concatenate Two Arrays

# I worked on this challenge [by myself ].


# Your Solution Below



def array_concat(array_1, array_2)
		
array_2.each {|x| array_1<<x}
array_1.flatten

end


def array_concat(array_1, array_2)
		
  a = array_1+array_2
  a.flatten
  #array_1.concat array_2
	
 end



```

Add solution for challenge 4.6
user
```ruby
# Concatenate Two Arrays

# I worked on this challenge [by myself ].


# Your Solution Below

# def array_concat(array_1, array_2)
#  array_2.each {|x| array_1<<x}
#  array_1.flatten
# end


# def array_concat(array_1, array_2)		
#   a = array_1+array_2
#   a.flatten
# end


# def array_concat(array_1, array_2)
#    array_1.concat array_2		
# end




```
assistant