Q:

Array to hash in ruby

Input:
 a = [[:a, "apple"], [:b, "bear"]]

Output:
 {:a=>"apple", :b=>"bear"}

I think of this way to do it:
h = a.inject({}){|dic,i| dic.merge({i[0]=>i[1]})}

But I still think it's not the best way. Does anyone have better solutions?

A:

>> Hash[*a.flatten]
=> {:a=>"apple", :b=>"bear"}

Or a prettier one:
>> Hash[a] 

Or after 2.1:
>> a.to_h

