Combine multiple arrays in one array of hashes-CodePudding

I have a hashes like this

name = ['Jhon Doe', 'Jane Doe' , 'David']
role = ['Admin', 'Accountant', 'Sales']

i want to make it look like this

data = [
      {name => 'Jhon Doe', role => 'Admin'},
      {name => 'Jane Doe', role => 'Accountan'},
      {name => 'David', role => 'Sales'}
]

is it posible to do something like this?

CodePudding user response：

You can achieve desired result using product and transpose:

[[:name].product(name), [:role].product(role)].transpose.map(&:to_h)

Probably, a more elegant solution would be using map and with_index:

name.map.with_index { |name_i, index| { name: name, role: role[index] } }

CodePudding user response：

Here's a rather simple solution:

name.zip(role).map {|name, role| { name:, role: }}
#=> [
#     { name: 'Jhon Doe', role: 'Admin' },
#     { name: 'Jane Doe', role: 'Accountant' },
#     { name: 'David',    role: 'Sales' }
#   ]

CodePudding user response：

here name and role should be an array, not hash

name = ['Jhon Doe', 'Jane Doe' , 'David']
role = ['Admin', 'Accountant', 'Sales']

you can use the below to generate the output hash

my_hash_array = []
name.size.times{|i| my_hash_array << {name: name[i], role: role[i]} }

I hope this will help you.