Ruby sort by hash and value -


i have data this:

hash_data = [   {:key1 => 'value4', :sortby => 4},   {:key1 => 'valuesds6', :sortby => 6},   {:key1 => 'valuedsd', :sortby => 1},   {:key1 => 'value2_data_is_here', :sortby => 2} ]

i want sort key sortby

hash_data = [   {:key1 => 'valuedsd', :sortby => 1},   {:key1 => 'value2_data_is_here', :sortby => 2},   {:key1 => 'value4', :sortby => 4},   {:key1 => 'valuesds6', :sortby => 6} ]

i have tried using bubble sort, there inbuilt function in hash class such purposes?

enumerable#sort_by rescue:

hash_data.sort_by { |hash| hash[:sortby] } #=> [{:key1=>"valuedsd", :sortby=>1}, {:key1=>"value2_data_is_here", :sortby=>2}, {:key1=>"value4", :sortby=>4}, {:key1=>"valuesds6", :sortby=>6}]

if don't care initial object, suggest using array#sort_by! modify inplace - more resource-efficient:

hash_data.sort_by! { |hash| hash[:sortby] }

if have different types of data values sortby key, should first unify data type , perform sorting.

to have array sorted in descending order, use enumerable#reverse (or reverse!):

hash_data.sort_by {|hash| hash[:sortby] }.reverse #=> [{:key1=>"valuesds6", :sortby=>6}, {:key1=>"value4", :sortby=>4}, {:key1=>"value2_data_is_here", :sortby=>2}, {:key1=>"valuedsd", :sortby=>1}]

another option sorting in descending order following - note minus sign (credits @sagarpandya82):

hash_data.sort_by {|hash| -hash[:sortby] }

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