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}
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