HackerRank Ruby Hash – Initialization problem solution

In this HackerRank Ruby Hash – Initialization problem solution Hashes, also called associative arrays, are dictionary-like data structures that are similar to arrays. Instead of using integers to index an object, however, hashes use any object as its index.

In this challenge, your task is to create three different Hash collections as explained below.

Initialize an empty Hash with the variable name empty_hash

Hint

empty_hash = Hash.new 

Initialize an empty Hash with the variable name default_hash and the default value of every key set to 1.

Hint

default_hash = Hash.new(1)

or

default_hash = Hash.new

default_hash.default = 1

Initialize a hash with the variable name hackerrank and having the key-value pairs

“simmy”, 100  

“vivmbbs”,200

Hint

hackerrank = {“simmy” => 100, “vivmbbs” => 200}

Hash can be defined using a new method

hackerrank = Hash.new

hackerrank[“simmy”] = 100

hackerrank[“vivmbbs”] = 200

Problem solution.

# Initialize 3 variables here as explained in the problem statement
empty_hash = Hash.new
default_hash = Hash.new(1)
hackerrank = Hash.new
hackerrank = {"simmy" => 100, "vivmbbs" => 200}

Second solution.

empty_hash = Hash.new
default_hash = Hash.new(1)
hackerrank = {"simmy" => 100, "vivmbbs" => 200}