How do I collect nested hash values into an array in ruby?

Question

Say I have the following hash.

my_hash = {
  'array1' => %w[
    value1
    value2
  ],
  'array2' => %w[
    value3
    value4
  ]
}

How do I make an array that looks like

my_array = %w[value1 value2 value3 valuu4]

my_hash.values.flatten

Aetherus
– Aetherus

2015-11-10 15:37:24 +00:00
Commented Nov 10, 2015 at 15:37 — Aetherus
– Aetherus, Commented Nov 10, 2015 at 15:37

dug · Accepted Answer · 2015-11-10 17:01:28Z

3

my_array = my_hash.values.flatten
=> ["value1", "value2", "value3", "value4"]

edited Nov 10, 2015 at 17:01

answered Nov 10, 2015 at 15:40

dug

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Comments

Todd A. Jacobs · Accepted Answer · 2015-11-10 15:46:22Z

1

Flatten Hash Values

Use Hash#values to collect the values from your Hash, and then use Array#flatten to turn the result into a single Array rather than one containing nested arrays. For example:

my_hash.values.flatten
#=> ["value1", "value2", "value3", "value4"]

answered Nov 10, 2015 at 15:46

Todd A. Jacobs

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