Question

[[{"Postponed"=>10}], [{"Low"=>3}], [{"Medium"=>4}], [{"High"=>5}]]

is the array

how can I get the value corresponding to particular value.

say High returns 5 in this.
or how to convert this array of hashes to an array so that searching becomes easy.

I tried:

find_all { |v| v['name'] == "Low" } 

but it says:

cant convert String to Integer  

please provide some guidance

Answer 1

If you have some code like:

array = [[{"Postponed"=>10}], [{"Low"=>3}], [{"Medium"=>4}], [{"High"=>5}]]

Then turn it into an ruby hash:

hash = array.inject({}) {|h, e| h.merge(e.first) }
# => {"Postponed"=>10, "Low"=>3, "Medium"=>4, "High"=>5}

So you can find ‘Low’ value easily :

hash['Low']
# => 3

EDIT: The answer of Mark Thomas is pretty great, and shorter than the inject since it does the same thing. He wrote it before I answered. Nice 😉