HackerRank Ruby Strings Encoding Solution

Hello coders, In this post, you will learn how to solve HackerRank Ruby Strings Encoding 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 Strings Encoding Solution
HackerRank Ruby Strings Encoding Solution

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HackerRank Ruby Strings Encoding Solution

Let’s get started with Ruby Strings Encoding Solution

Problem Statement

In Ruby, strings are objects of the String class, which defines a powerful set of operations and methods for manipulating text (e.g., indexing, searching, modifying, etc.). Here are a few easy ways to create Strings:

my_string = “Hello.” # create a string from a literal
my_empty_string = String.new # create an empty string
my_copied_string = String.new(my_string) # copy a string to a new variable

Until Ruby 1.8, Strings were nothing but a collection of bytes. Data was indexed by byte count, size was in terms of number of bytes, and so on. Since Ruby 1.9, Strings have additional encoding information attached to the bytes which provides information on how to interpret them. For example, this code:

str = “With ♥!”
print(“My String’s encoding: “, str.encoding.name)
print(“\nMy String’s size: “, str.size)
print(“\nMy String’s bytesize: “, str.bytesize)

produces this output:

My String’s encoding: UTF-8
My String’s size: 7
My String’s bytesize: 9

You can make the following observations about the above code:

  • The string literal creates an object which has several accessible methods.
  • The string has attached encoding information indicating it’s an UTF-8 string.
  • A String’s size corresponds to the umber of characters we see.
  • A String’s bytesize corresponds to the actual space taken by the characters in memory (the ♥ symbol requires 3 bytes instead of 1).

Although UTF-8 is the most popular (and recommended) encoding style for content, Ruby supports 100 other encodings (try puts Encoding.list for the full list). With this in mind, we should learn how to convert between different encodings.

Task

In this challenge, we practice setting the encoding information for some string of text using Ruby’s Encoding methods. Write a function named transcode which takes a ISO-8859-1 encoded string as a parameter, converts it to an UTF8 encoded string, and returns the result.

Input Format

Our hidden code checker will call your function, passing it an ISO-8859-1 encoded string as an argument.

Constraints

  • Your function must be named transcode.

Output Format

Your function must return an UTF-8 encoded string.

HackerRank Ruby Strings Encoding Solution

# Enter your code here. 
def transcode(my_string)
    my_string.force_encoding("utf-8")
end 

Note: This problem (Ruby – Strings – Encoding 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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