How to create an Empty Map in Ruby - Step by Step Examples
How to create an Empty Map in Ruby ?
Answer
To create an empty map in Ruby, you can use the Hash.new constructor. This creates a new, empty Hash object.
✐ Examples
1 Creating an Empty Map
We can create an empty map in Ruby using the Hash.new constructor, which initializes a map with no key-value pairs.
For example,
- We start by declaring a variable named
empty_map
. This variable will hold our empty map. - We then use the
Hash.new
constructor to create a new, empty Hash object. In Ruby, theHash.new
method initializes the map with no key-value pairs. - The newly created map is now assigned to the
empty_map
variable. In this example, the map is empty and ready to store key-value pairs. - We can now perform various operations on this empty map, such as adding key-value pairs, checking for the presence of keys, and retrieving values.
Ruby Program
empty_map = Hash.new
# Operations on the empty map
# ...
puts empty_map
Output
{}
Summary
In this tutorial, we learned How to create an Empty Map in Ruby language with well detailed examples.
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