Question

How to convert hash to array in Ruby

Answer 1

hash = { "java" => "AA", "php" => "BB", "c++" => "CC", "ruby" => "DD" }
 
arr = hash.to_a
 
print arr, "\n"

print arr[0], "\n"

print arr[0][0], "\n"
print arr[0][1], "\n"

puts arr.class
 
 
 

# run:
#   
# [["java", "AA"], ["php", "BB"], ["c++", "CC"], ["ruby", "DD"]]
# ["java", "AA"]
# java
# AA
# Array
#

 

70+ SQL courses for beginners and professionals