HackerRank Ruby Hash Initialization Solution

Hello coders, In this post, you will learn how to solve HackerRank Ruby Hash Initialization Solution. This problem is a part of the Ruby Tutorial series. One more thing to add, don’t straight away look for the solutions, first try to solve the problems by yourself. If you find any difficulty after trying several times, then look for the solutions.

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HackerRank Ruby Hash Initialization Solution
HackerRank Ruby Hash Initialization Solution

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HackerRank Ruby Hash Initialization Solution

Let’s get started with Ruby Hash Initialization Solution

Problem Statement

Hashes, also called associative arrays, are dictionary-like data structures which 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

HackerRank Ruby Hash Initialization Solution

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

Note: This problem (Ruby Hash – Initialization) is generated by HackerRank but the solution is provided by Chase2Learn. This tutorial is only for Educational and Learning purpose.

FAQ:

1. What is Ruby programming?

Ruby programming is a high-level, interpreted, general-purpose programming language. It is designed for developing web applications and is known for its fast, concise, and easy-to-learn syntax. Ruby is used by many large tech companies such as Google, Facebook, and Twitter. Read more

2. Should I put HackerRank certificate on resume?

These certificates are useless, and you should not put them on your resume. The experience you gained from getting them is not useless. Use it to build a portfolio, and link to it on your resume. 

3. Can I retake HackerRank test?

The company which sent you the HackerRank Test invite owns your Test submissions and results. It’s their discretion to permit a reattempt for a particular Test. If you wish to retake the test, we recommend that you contact the concerned recruiter who invited you to the Test and request a re-invite. 

4. What is HackerRank?

HackerRank is a tech company that focuses on competitive programming challenges for both consumers and businesses. Developers compete by writing programs according to provided specifications. Wikipedia

5. Where can I find HackerRank Ruby solutions?

in this post, you will get all the solutions to HackerRank ruby Problems.


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