Question : how to remove the first element in an array ruby
Answered by : sandisz
a = [0,1,2,3]
a.shift
# => [1,2,3]
a
# => [1,2,3]Source : | Last Update : Wed, 09 Feb 22
Question : remove first element from an array ruby
Answered by : sandisz
a = [1, 2, 3]
a.shift
# => [2, 3]Source : | Last Update : Wed, 02 Feb 22
Question : Ruby exclude from slice
Answered by : mysterious-manatee-ko06m5e45kjt
# First of all you have to use splat (*) operator.
# Then instead of using .slice() and .except() together, you can do this is more efficient way.
columns_to_show = ['age', 'gender', 'cast', 'fee_status']
columns_to_show = columns_to_show - hidden_columns if hidden_columns
patient.slice(*columns_to_show).values
patient.slice('age', 'gender', 'cast', 'fee_status').except(*hidden_columns) => {"cast"=>"black", "fee_status"=>"paid"}Source : https://stackoverflow.com/questions/53007950/rails-except-array-elements-from-slice | Last Update : Fri, 14 Aug 20