Hashes
A hash is a collection of key and value pairs. Use curly braces {} to define a hash. Use brackets [] to get a value of a key from a hash.
Define a hash like below
nations = { ‘ID’ => ‘Indonesia’ , ‘MY’ => ‘Malaysia’, ‘SG’ => ‘Singapore’ }
To add a key value pair to hash
nations[‘BN’] = ‘Brunei Darussalam’
To output value of a key in hash
puts nations[‘ID’]
To output a hash entirely
puts nations
Bye for now !