To copy a hash in Ruby, you can use the `dup` method, the `clone` method, or the `merge` method to create a new hash with the same key-value pairs as the original hash. These methods provide straightforward ways to duplicate a hash.
We can copy a hash in Ruby using the `dup` method, which creates a new hash with the same key-value pairs as the original hash.
For example,
original_hash
with some key-value pairs. In this example, the hash has string keys and integer values.dup
method to create a new hash named copied_hash
that contains the same key-value pairs as original_hash
.puts
function to verify the copy.original_hash = { 'one' => 1, 'two' => 2, 'three' => 3 }
# Copy the hash using the dup method
copied_hash = original_hash.dup
# Print the copied hash
puts "Copied Hash: #{copied_hash}"
Copied Hash: {"one"=>1, "two"=>2, "three"=>3}
We can also copy a hash in Ruby using the `clone` method, which creates a new hash with the same key-value pairs as the original hash.
For example,
original_hash
with some key-value pairs. In this example, the hash has string keys and integer values.clone
method to create a new hash named copied_hash
that contains the same key-value pairs as original_hash
.puts
function to verify the copy.original_hash = { 'one' => 1, 'two' => 2, 'three' => 3 }
# Copy the hash using the clone method
copied_hash = original_hash.clone
# Print the copied hash
puts "Copied Hash: #{copied_hash}"
Copied Hash: {"one"=>1, "two"=>2, "three"=>3}
We can copy a hash in Ruby using the `merge` method to add all key-value pairs from the original hash to a new hash.
For example,
original_hash
with some key-value pairs. In this example, the hash has string keys and integer values.copied_hash
.merge
method to add all key-value pairs from original_hash
to copied_hash
.puts
function to verify the copy.original_hash = { 'one' => 1, 'two' => 2, 'three' => 3 }
# Copy the hash using the merge method
copied_hash = {}.merge(original_hash)
# Print the copied hash
puts "Copied Hash: #{copied_hash}"
Copied Hash: {"one"=>1, "two"=>2, "three"=>3}
In this tutorial, we learned How to Copy a Map in Ruby language with well detailed examples.