What is the best way to convert an array to a hash in Ruby

by

Simply use Hash[*array_variable.flatten]

For example:

a1 = ['apple', 1, 'banana', 2]
h1 = Hash[*a1.flatten(1)]
puts "h1: #{h1.inspect}"

a2 = [['apple', 1], ['banana', 2]]
h2 = Hash[*a2.flatten(1)]
puts "h2: #{h2.inspect}"

Using Array#flatten(1) limits the recursion so Array keys and values work as expected.

More Related Contents:

  1. How do I pick randomly from an array?
  2. How to sum array of numbers in Ruby?
  3. How to check if a value exists in an array in Ruby
  4. Ruby array access 2 consecutive(chained) elements at a time
  5. How to find and return a duplicate value in array
  6. Array#each vs. Array#map
  7. What does %w(array) mean?
  8. How do I copy a hash in Ruby?
  9. How to split (chunk) a Ruby array into parts of X elements? [duplicate]
  10. How to find an item in array which has the most occurrences [duplicate]
  11. How to count duplicate elements in a Ruby array
  12. Difference between map and collect in Ruby?
  13. Best way to convert strings to symbols in hash
  14. Sort hash by key, return hash in Ruby
  15. Create two-dimensional arrays and access sub-arrays in Ruby
  16. How to merge Ruby hashes
  17. How do I search within an array of hashes by hash values in ruby?
  18. Find key/value pairs deep inside a hash containing an arbitrary number of nested hashes and arrays
  19. Ruby method Array#
  20. Need to split arrays to sub arrays of specified size in Ruby [duplicate]
  21. How to chunk an array in Ruby
  22. Ruby – Difference between Array#
  23. Convert array of 2-element arrays into a hash, where duplicate keys append additional values
  24. How to sort an array in Ruby to a particular order?
  25. How do you add an array to another array in Ruby and not end up with a multi-dimensional result?
  26. How to count identical string elements in a Ruby array
  27. Ruby array subtraction without removing items more than once
  28. Where is it legal to use ruby splat operator?
  29. How do I remove blank elements from an array?
  30. How to convert JSON to a Ruby hash

Leave a Comment