Question

I have an array of size 35K and want to convert it into hash. I was able to convert an array of size 12K with the following method.

a = []
12000.times { |i| a << i }
Hash[*a]

But, When I try arrays having size more than 12K, it raises SystemStackError: stack level too deep error.

Can anyone suggest? What is going wrong?

Answer 1

You can try this

a = [*1..1_000_000].to_a
b = {}
a.each_slice(2){|k,v| b[k] = v}