I have a hash like so:
list=[
{:cod => "0001", :name => "name1", :val => 10},
{:cod => "0001", :name => "name1", :val => 12},
{:cod => "0002", :name => "name2", :val => 13},
{:cod => "0002", :name => "name2", :val => 14},
{:cod => "0002", :name => "name2", :val => 14},
{:cod => "0004", :name => "name4", :val => 16},
{:cod => "0004", :name => "name4", :val => 16},
{:cod => "0004", :name => "name4", :val => 17},
{:cod => "0005", :name => "name5", :val => 17},
{:cod => "0005", :name => "name5", :val => 17},
{:cod => "0005", :name => "name5", :val => 17},
{:cod => "0006", :name => "name6", :val => 110},
{:cod => "0006", :name => "name6", :val => 10},
]
What I would like to learn how to do is how to remove a record if it is
duplicate end sum values :val.
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